BMR4501002/021 - Ericsson, Inc.

Ericsson Internal

PRODUCT SPECIFICATION 1 (4)

Prepared (also subject responsible if other) No.

EZIWSON 1/1301-BMR 450+ Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) 2011-12-21 G

Key Features

 Small package

25.65 x 12.9 x 8.2 mm (1.01 x 0.51 x 0.323 in.)

 20 A output current

 4.5 V - 14 V input voltage range

 0.6 V - 5.5 V output voltage range (by PMBus)

 0.7 V – 5 V output voltage range (by external resistor)

 High efficiency, typ. 96,8 % at half load, 5 Vin, 3.3 Vout

 13 million hours MTBF

 Through hole and surface mount versions

 PMBus read and write compliant

General Characteristics

 Voltage/current/temperature monitoring

 Precision delay and ramp-up

 Voltage sequencing

 Switching frequency synchronization

 Configurable control loop

 Non-linear transient response

 Wide output voltage adjust function

 Start up into a pre-biased output safe

 Output short-circuit protection

 Over temperature protection

 On/Off inhibit control

 Output voltage sense

 ISO 9001/14001 certified supplier

Safety Approvals Design for Environment

Meets requirements in high-

temperature lead-free soldering

processes.

Ericsson Internal

TABLE OF CONTENTS 1 (1)

Prepared (also subject responsible if other) No.

ESLUOAN 001 52-EN/LZT 146 400 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) 2010-03-10 D

Contents

Ordering Information .............................................................2

General Information .............................................................2

Safety Specification .............................................................3

Absolute Maximum Ratings .............................................................4

Functional Specification .............................................................5

Electrical Specification

1.0V, 20A / 20W BMR450 0002/020................................6

3.3V, 20A / 66W BMR450 0002/020................................9

5.0V, 20A / 100W BMR450 0002/020..............................12

5.5V, 18A / 99W BMR450 0002/021..............................15

EMC Specification ........................................................... 18

Operating Information ...........................................................18

Thermal Consideration ........................................................... 21

Connections ...........................................................22

Typical Application Circuits ...........................................................23

PMBus Interface & Commands ...........................................................24

Mechanical Information ...........................................................27

Soldering Information ...........................................................29

Delivery Information ...........................................................30

Product Qualification Specification ........................................................... 31

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 2 (4)

Prepared (also subject responsible if other) No.

EZIWSON 1/1301-BMR 450+ Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) 2011-12-21 G

Ordering Information

Product program Output

BMR450 0.6-5.5 V / 20 A, 100 W

Product Number and Packaging

B MR450 n1n2n3n4 /n5n6n7

Options n1 nnn/ n n n

Mechanical pin option x /

Mechanical option x /

Digital Interface option x x /

Configuration file / x x x

Optional designation Description

n3 n4

n5 n6 n7

Packaging

0 = Through hole mount version (THP)

1 = Surface mount version (SMD)

0 = Open frame

02 = 4.5 – 14 Vin PMBus and analog

voltage adjust

020 = Standard configuration

021 = Application Specific Configuration

for 5.5V output voltage

Antistatic injection molded tray of 60

products (5 full trays/box = 300 products)

Example: Product number BMR4501002/020 equals a surface mount, open

frame, PMBus and analog voltage adjust, standard configuration variant.

For application specific configurations contact your local

Ericsson Power Modules sales representative.

General Information

Reliability

The failure rate () and mean time between failures

(MTBF= 1/) is calculated at max output power and an

operating ambient temperature (TA) of +40°C. Ericsson

Power Modules uses Telcordia SR-332 Issue 2 Method 1 to

calculate the mean steady-state failure rate and standard

deviation ().

Telcordia SR-332 Issue 2 also provides techniques to

estimate the upper confidence levels of failure rates based

on the mean and standard deviation.

Mean steady-state failure rate,  Std. deviation, 

78 nFailures/h 33.1 nFailures/h

MTBF (mean value) for the BMR450 series = 12.7 Mh.

MTBF at 90% confidence level = 8.3 Mh

Compatibility with RoHS requirements

The products are compatible with the relevant clauses and

requirements of the RoHS directive 2002/95/EC and have a

maximum concentration value of 0.1% by weight in

homogeneous materials for lead, mercury, hexavalent

chromium, PBB and PBDE and of 0.01% by weight in

homogeneous materials for cadmium.

Exemptions in the RoHS directive utilized in Ericsson

Power Modules products include:

- Lead in high melting temperature type solder (used to

solder the die in semiconductor packages)

- Lead in glass of electronics components and in

electronic ceramic parts (e.g. fill material in chip

resistors)

- Lead as an alloying element in copper alloy containing

up to 4% lead by weight (used in connection pins made

of Brass)

Quality Statement

The products are designed and manufactured in an

industrial environment where quality systems and methods

like ISO 9000, 6σ (sigma), and SPC are intensively in use

to boost the continuous improvements strategy. Infant

mortality or early failures in the products are screened out

and they are subjected to an ATE-based final test.

Conservative design rules, design reviews and product

qualifications, plus the high competence of an engaged

work force, contribute to the high quality of our products.

Warranty

Warranty period and conditions are defined in Ericsson

AB’s General Terms and Conditions of Sale. Ericsson AB

does not make any other warranties, expressed or implied

including any warranty of merchantability, effects of product

configurations made by customers or fitness for a particular

purpose.

The information and specifications in this technical

specification is believed to be correct at the time of

publication. However, no liability is accepted for

inaccuracies, printing errors or for any consequences

thereof. Ericsson AB reserves the right to change the

contents of this technical specification at any time without

prior notice.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 3 (4)

Prepared (also subject responsible if other) No.

EZIWSON 1/1301-BMR 450+ Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) 2011-12-21 G

Safety Specification

General information

Ericsson Power Modules DC/DC converters and DC/DC

regulators are designed in accordance with safety

standards IEC/EN/UL 60950-1 Safety of Information

Technology Equip m ent.

IEC/EN/UL 60950-1 contains requirements to prevent

injury or damage due to the following hazards:

 Electrical shock

 Energy hazards

 Fire

 Mechanical and heat hazards

 Radiation hazards

 Chemical hazards

On-board DC/DC converters and DC/DC regulators are

defined as component power supplies. As components

they cannot fully comply with the provisions of any safety

requirements without “Conditions of Acceptability”.

Clearance between conductors and between conductive

parts of the component power supply and conductors on

the board in the final product must meet the applicable

safety requirements. Certain conditions of acceptability

apply for component power supplies with limited stand-off

(see Mechanical Information for further information). It is

the responsibility of the installer to ensure that the final

product housing these components complies with the

requirements of all applicable safety standards and

regulations for the final product.

Component power supplies for general use should comply

with the requirements in IEC 60950-1, EN 60950-1 and

UL 60950-1 Safety of Information Technology Equipment.

There are other more product related standards, e.g.

IEEE 802.3 CSMA/CD (Ethernet) Access Method, and

ETS-300132-2 Power supply interface at the input to

telecommunications equi pment, operated by direct current

(dc), but all of these standards are based on

IEC/EN/UL 60950-1 with regards to safety.

Ericsson Power Modules DC/DC converters and DC/DC

regulators are UL 60950-1 recognized and certified in

accordance with EN 60950-1.

The flammability rating for all construction parts of the

products meet requirements for V-0 class material

according to IEC 60695-11-10, Fire hazard testing, test

flames – 50 W horizontal and vertical flame test methods.

The products should be installed in the end-use equipment,

in accordance with the requirements of the ultimate

application. Normally the output of the DC/DC converter is

considered as SELV (Safety Extra Low Voltage) and the

input source must be isolated by minimum Double or

Reinforced Insulation from the primary circuit (AC mains) in

accordance with IEC/EN/UL 60950-1.

Isolated DC/DC converters

It is recommended that a slow blow fuse is to be used at

the input of each DC/DC converter. If an input filter is used

in the circuit the fuse should be placed in front of the input

filter.

In the rare event of a component problem that imposes a

short circuit on the input source, this fuse will provide the

following functions:

 Isolate the fault from the input power source so as

not to affect the operation of other parts of the

system.

 Protect the distribution wiring from excessive

current and power loss thus preventing hazardous

overheating.

The galvanic isolation is verified in an electric strength test.

The test voltage (Viso) between input and output is

1500 Vdc or 2250 Vdc (refer to product specification).

24 V DC systems

The input voltage to the DC/DC converter is SELV (Safety

Extra Low Voltage) and the output remains SELV under

normal and abnormal operating conditions.

48 and 60 V DC systems

If the input voltage to the DC/DC converter is 75 Vdc or

less, then the output remains SELV (Safety Extra Low

Voltage) under normal and abnormal operating conditions.

Single fault testing in the input power supply circuit should

be performed with the DC/DC converter connected to

demonstrate that the input voltage does not exceed

75 Vdc.

If the input power source circuit is a DC power system, the

source may be treated as a TNV-2 circuit and testing has

demonstrated compliance with SELV limits in accordance

with IEC/EN/UL60950-1.

Non-isolated DC/DC regulators

The input voltage to the DC/DC regulator is SELV (Safety

Extra Low Voltage) and the output remains SELV under

normal and abnormal operating conditions.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 1 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

Absolute Maximum Ratings

Characteristics min typ max Unit

TP1 Operating temperature (see Thermal Consideration section) -40 120 °C

TS Storage temperature -40 125 °C

VI Input voltage (See Operating Information Section for input and output voltage relations) -0.3 16 V

VO Output voltage 0.6 5.5 V

PO Output power 100 W

Logic I/O voltage CTRL, SA(0,1), SALERT, SCL, SDA, FLEX -0.3 6.5 V

Ground voltage differential DGND, -S, GND -0.3 0.3 V

Analog pin voltage VOUT, +S -0.3 6.5 V

Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are

normally tested with one parameter at a time exceeding the limits of Output data or Electrical Characteristics. If exposed to stress above these limits, function and

performance may degrade in an unspecified manner.

Fundamental Circuit Diagram

VIN VOUT

GND +S

-S

SCL

SDA

DGND

CTRL

SALERT

SA0

SA1

FLEX

DPWM Controller and I/O

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 2 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

Functional Specification

TP1 = -40 to +85ºC, VI = 4.5 to 14 V

Typical values given at: TP1 = +25°C, VI = 12 V, max IO, unless otherwise specified under Conditions

Configuration File: 190 10-CDA 102 899/020

Characteristics Conditions min typ max Unit

SMBus monitoring

VIN_READ, 0x88h Accuracy vs. VI 3 %

VOUT_READ, 0x8Bh Accuracy vs. VO 1 %

IOUT_READ, 0x8Ch Accuracy vs. IO 20 %

IOUT_READ, 0x8Ch Accuracy vs. IO V

I = 4.5 - 4.8 V 40 %

General Electrical Characteristics

fs Switching frequency Factory default 320 kHz

CISMBus Internal capacitance SMBus signals, SDA, SCL 7 pF

CI Internal input capacitance 70 µF

Fault Protection Characteristics

UVLO Threshold 4.25 V

Set point accuracy -100 100 mV

Hysteresis Factory default 0.25 V

Input Under

Voltage Lockout,

UVLO

Delay 2.5

µs

UVP threshold Factory default 85 % VOUT

OVP threshold Factory default 115 % VOUT

(Output voltage)

Over/Under

Voltage Protection,

OVP/UVP OVP/UVP fault response

time Factory default 25 µs

Set point accuracy Io -20 40 %

OCP threshold Factory default 30 A

Over Current

Protection,

OCP OCP protection delay Factory default 45 µs

OTP threshold Factory default 120 Over Temperature

Protection,

OTP at TP1 OTP hysteresis Factory default 15 °C

Logic Input/Output Characteristics

Logic input low threshold (VIL) 0.8 V

Logic input high threshold (VIH) CTRL, SCL, SDA, FLEX 2 V

Logic output low (VOL) SALERT, SCL, SDA, FLEX

IOL ≤ 4 mA 0.4 V

Logic output high (VOH) SALERT, SCL, SDA, FLEX

IOL ≥ -2 mA 2.25 V

Setup time, SMBus (tset) See Note 1 300 ns

Hold time, SMBus (thold) See Note 1 250 ns

Note 1: See operation information section for I2C/SMBus Setup and Hold Times – Definitions

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 3 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

1.0 V, 20 A/20 W Electrical Specification BMR 450 0002/020

TP1 = -40 to +85ºC, VI = 4.5 to 14 V. Configuration: CDA 102 899/020, RSET = 19.6 kΩ.

Typical values given at: TP1 = +25°C, VI = 12.0 V, max IO, unless otherwise specified under Conditions.

Additional CI = 470 µF. See Operating Information section for selection of capacitor types.

Sense pins are connected to the output pins.

Characteristics Conditions min typ max Unit

VI Input voltage range 4.5 14 V

VIoff Turn-off input voltage Decreasing input voltage 4.25 V

VIon Turn-on input voltage Increasing input voltage 4.5 V

PO Output power 0 20 W

50 % of max IO 88.1

η Efficiency max IO 85.4

Pd Power dissipation 3.4 W

Pli Input idling power IO = 0.01 A 0.57 W

Turned off with CTRL, monitoring

enabled, see Note 3 120 mW

PRC Input standby power Low power mode, monitoring

disabled, see Note 3 20 mW

IS Static input current 2 A

VOi Output voltage initial setting and

accuracy 0.990 1.000 1.010 V

Output voltage tolerance band 0.05 - 100 % of max IO 0.985 1.015 V

Idling voltage IO = 0.01 A 1.000 V

Line regulation 4 mV

Load regulation 0.05 - 100 % of max IO 4 mV

Vtr1 Load transient

voltage deviation -50/+60 mV

ttr1 Load transient recovery time

Load step 25–75-25 % of max IO,

di/dt = 2.5 A/µs with default

configuration and CO = 5 mF 150

µs

CO Recommended capacitive load See Note 1 470 100 000 µF

tr Ramp-up time

(from 10 − 90 % of VOi) 10 ms

ts Start-up time

(from VI connection to 10 % of VOi)

0.05 - 100 % of max IO

30 ms

250 µs

tf VI shut-down fall time.

(From VI off to 10 % of VO) IO = 0.2 A 250 ms

CTRL start-up time 20 ms

7 ms

tCTRL CTRL shut-down fall time

(From CTRL off to 10 % of VO) IO = 0.2 A 7 ms

IO Output current 0.01 20 A

Ilim Current limit threshold 24 30 A

Isc Short circuit current 40 A

VOac Output ripple & noise See Note 2 10 mVp-p

Note 1: See Operating Information section for External Decoupling Capacitors.

Note 2: See Operating Information section for Output Ripple and Noise.

Note 3: See Operating Information section for Power Management Overview.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 4 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

1.0 V, 20 A/20 W Typical Characteristics BMR 450 0002/020

Efficiency Power Dissipation

0 4 8121620[A]

[%]

4.5 V

5 V

12 V

14 V

048121620[A]

[W]

4.5 V

5 V

12 V

14 V

Efficiency vs. load current and input voltage at TP1 = +25°C. Dissipated power vs. load current and input voltage at TP1 = +25°C.

Output Current Derating

0 20 40 60 80 100 [°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Nat. Conv.

Available load current vs. ambient air temperature and airflow at

VI = 5 V. See Thermal Consideration section.

Output Characteristics Current Limit Characteristics

0.98

0.99

1.00

1.01

1.02

0 5 10 15 20 [A]

[V]

4.5 V

5 V

12 V

14 V

0.0

0.2

0.4

0.6

0.8

1.0

1.2

15 20 25 30 35 40 [A]

[V]

4.5 V

5 V

12 V

14 V

Output voltage vs. load current at TP1 = +25°C.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 5 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

1.0 V, 20 A/20 W Typical Characteristics BMR 450 0002/020

Start-up Shut-down

Start-up enabled by connecting VI at:

TP1 = +25°C, VI = 12 V,

IO = 20 A resistive load and 5 mF.

Top trace: output voltage (0.5 V/div.).

Bottom trace: input voltage (5 V/div.).

Time scale: (10 ms/div.).

Shut-down enabled by disconnecting VI at:

TP1 = +25°C, VI = 12 V,

IO = 20 A resistive load.

Top trace: output voltage (0.5 V/div).

Bottom trace: input voltage (5 V/div.).

Time scale: (10 ms/div.).

Output Ripple & Noise Output Load Transient Response

Output voltage ripple at:

TP1 = +25°C, VI = 12 V,

IO = 20 A resistive load.

Trace: output voltage (20 mV/div.).

Time scale: (2 µs/div.).

Output voltage response to load current

step-change (5-15-5 A) at:

TP1 = +25°C, VI = 12 V, CO = 5 mF.

Top trace: output voltage (200 mV/div.).

Bottom trace: load current (10 A/div.).

Time scale: (0.2 ms/div.).

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 6 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

3.3 V, 20 A/66 W Electrical Specification BMR 450 0002/020

TP1 = -40 to +85ºC, VI = 4.5 to 14 V. Configuration: CDA 102 899/020, RSET = 1.21 kΩ.

Typical values given at: TP1 = +25°C, VI = 12 V, max IO, unless otherwise specified under Conditions.

Additional CI = 470 µF. See Operating Information section for selection of capacitor types.

Sense pins are connected to the output pins.

Characteristics Conditions min typ max Unit

VI Input voltage range 4.5 14 V

VIoff Turn-off input voltage Decreasing input voltage 4.25 V

VIon Turn-on input voltage Increasing input voltage 4.5 V

PO Output power 0 66 W

50 % of max IO 94.7

η Efficiency max IO 93.5

Pd Power dissipation 4.4 W

Pli Input idling power IO = 0.01 A 1.0 W

Turned off with CTRL, monitoring

enabled, see Note 3 120 mW

PRC Input standby power Low power mode, monitoring

disabled, see Note 3 20 mW

IS Static input current 6 A

VOi Output voltage initial setting and

accuracy 3.285 3.300 3.315 V

Output voltage tolerance band 0.05 - 100 % of max IO 3.250 3.350 V

Idling voltage IO = 0.01 A 3.300 V

Line regulation 4 mV

Load regulation 0.05 - 100 % of max IO 4 mV

Vtr1 Load transient

voltage deviation -140/+170 mV

ttr1 Load transient recovery time

Load step 25-75-25 % of max IO,

di/dt = 2.5 A/µs with default

configuration and CO = 2 mF 150 µs

CO Recommended capacitive load See Note 1 470 100 000 µF

tr Ramp-up time

(from 10 − 90 % of VOi) 10 ms

ts Start-up time

(from VI connection to 10 % of VOi)

0.05 - 100 % of max IO

30 ms

250 µs

tf VI shut-down fall time.

(From VI off to 10 % of VO) IO = 0.2 A 250 s

CTRL start-up time 20 ms

7 ms

tCTRL CTRL shut-down fall time

(From RC off to 10 % of VO) IO = 0.2 A 7 ms

IO Output current 0.01 20 A

Ilim Current limit threshold 24 30 A

Isc Short circuit current 40 A

VOac Output ripple & noise See Note 2 45 mVp-p

Note 1: See Operating Information section for External Decoupling Capacitors.

Note 2: See Operating Information section for Output Ripple and Noise.

Note 3: See Operating Information section for Power Management Overview.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 7 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

3.3 V, 20 A/66 W Typical Characteristics BMR 450 0002/020

Efficiency Power Dissipation

100

0 4 8 121620[A]

[%]

4.5 V

5 V

12 V

14 V

048121620[A]

[W]

4.5 V

5 V

12 V

14 V

Efficiency vs. load current and input voltage at TP1 = +25°C. Dissipated power vs. load current and input voltage at

TP1 = +25°C.

Output Current Derating

0 20 40 60 80 100 [°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Nat. Conv.

Available load current vs. ambient air temperature and airflow at

VI = 12 V. See Thermal Consideration section.

Output Characteristics Current Limit Characteristics

3.28

3.29

3.30

3.31

3.32

048121620[A]

[V]

4.5 V

5 V

12 V

14 V

15 20 25 30 35 40 [A]

[V]

4.5 V

5 V

12 V

14 V

Output voltage vs. load current at TP1 = +25°C.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 8 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

3.3 V, 20 A/66 W Typical Characteristics BMR 450 0002/020

Start-up Shut-down

Start-up enabled by connecting VI at:

TP1 = +25°C, VI = 12 V,

IO = 20 A resistive load and 2 mF.

Top trace: output voltage (2 V/div.).

Bottom trace: input voltage (5 V/div.).

Time scale: (20 ms/div.).

Shut-down enabled by disconnecting VI at:

TP1 = +25°C, VI = 12 V,

IO = 20 A resistive load.

Top trace: output voltage (2 V/div).

Bottom trace: input voltage (5 V/div.).

Time scale: (2 ms/div.).

Output Ripple & Noise Output Load Transient Response

Output voltage ripple at:

TP1 = +25°C, VI = 12 V,

IO = 20 A resistive load.

Trace: output voltage (20 mV/div.).

Time scale: (2 µs/div.).

Output voltage response to load current step-

change (5-15-5 A) at:

TP1 = +25°C, VI = 12 V, CO = 2 mF.

Top trace: output voltage (100 mV/div.).

Bottom trace: load current (5 A/div.).

Time scale: (0.5 ms/div.).

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 9 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

5.0 V, 20 A/100 W Electrical Specification BMR 450 0002/020

TP1 = -40 to +85ºC, VI = 6 to 14 V. Configuration: CDA 102 899/020, RSET = 0 Ω.

Typical values given at: TP1 = +25°C, VI = 12.0 V, max IO, unless otherwise specified under Conditions.

Additional CI = 470 µF. See Operating Information section for selection of capacitor types.

Sense pins are connected to the output pins.

Characteristics Conditions min typ max Unit

VI Input voltage range 6 14 V

VIoff Turn-off input voltage Decreasing input voltage, see

Note 4 4.25 V

VIon Turn-on input voltage Increasing input voltage, see

Note 4 4.5 V

PO Output power 0 100 W

50 % of max IO 94.0

η Efficiency max IO 93.0

Pd Power dissipation 7.4 W

Pli Input idling power IO = 0.01 A 1.6 W

Turned off with CTRL, monitoring

enabled, see Note 3 120 mW

PRC Input standby power Low power mode, monitoring

disabled, see Note 3 20 mW

IS Static input current 8.9 A

VOi Output voltage initial setting and

accuracy 4.950 5.000 5.050 V

Output voltage tolerance band 0.05 - 100 % of max IO 4.925 5.075 V

Idling voltage IO = 0.01 A 5.000 V

Line regulation 4 mV

Load regulation 0.05 - 100 % of max IO 4 mV

Vtr1 Load transient

voltage deviation -190/+190 mV

ttr1 Load transient recovery time

Load step 25–75-25 % of max IO,

di/dt = 2.5 A/µs with default

configuration and CO = 2 mF 150

µs

CO Recommended capacitive load See Note 1 470 100 000 µF

tr Ramp-up time

(from 10 − 90 % of VOi) - 10 - ms

ts Start-up time

(from VI connection to 10 % of VOi)

0.05 - 100 % of max IO

- 30 - ms

250 µs

tf VI shut-down fall time.

(From VI off to 10 % of VO) IO = 0.2 A 250 ms

CTRL start-up time 20 ms

7 ms

tCTRL CTRL shut-down fall time

(From CTRL off to 10 % of VO) IO = 0.2 A 7 ms

IO Output current 0.01 20 A

Ilim Current limit threshold 24 30 A

Isc Short circuit current 40 A

VOac Output ripple & noise See Note 2 100 mVp-p

Note 1: See Operating Information section for External Decoupling Capacitors.

Note 2: See Operating Information section for Output Ripple and Noise.

Note 3: See Operating Information section for Power Management Overview.

Note 4: See Operating Information section for Turn-off Input Voltage Range

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 10 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

5.0 V, 20 A/100 W Typical Characteristics BMR 450 0002/020

Efficiency Power Dissipation

10 0

0 4 8 12 16 2 0 [ A ]

[%]

6 V

9.6 V

12 V

14 V

0 4 8 12 16 20 [A]

[W]

6 V

9.6 V

12 V

14 V

Efficiency vs. load current and input voltage at TP1 = +25°C. Dissipated power vs. load current and input voltage at TP1 = +25°C.

Output Current Derating

0 20406080100[°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Nat. Conv.

Available load current vs. ambient air temperature and airflow at

VI = 12 V. See Thermal Consideration section.

Output Characteristics Current Limit Characteristics

4,950

4,975

5,000

5,025

5,050

0 5 10 15 20 [A]

[V]

6 V

9.6 V

12 V

14 V

0.0

1.0

2.0

3.0

4.0

5.0

15 20 25 30 35 40 [A]

[V]

6 V

9.6 V

12 V

14 V

Output voltage vs. load current at TP1 = +25°C.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 11 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

5.0 V, 20 A/100 W Typical Characteristics BMR 450 0002/020

Start-up Shut-down

Start-up enabled by connecting VI at:

TP1 = +25°C, VI = 12 V,

IO = 20 A resistive load and 2 mF.

Top trace: output voltage (2 V/div.).

Bottom trace: input voltage (5 V/div.).

Time scale: (10 ms/div.).

Shut-down enabled by disconnecting VI at:

TP1 = +25°C, VI = 12 V,

IO = 20 A resistive load.

Top trace: output voltage (2 V/div).

Bottom trace: input voltage (5 V/div.).

Time scale: (10 ms/div.).

Output Ripple & Noise Output Load Transient Response

Output voltage ripple at:

TP1 = +25°C, VI = 12 V,

IO = 20 A resistive load.

Trace: output voltage (20 mV/div.).

Time scale: (2 µs/div.).

Output voltage response to load current

step-change (5-15-5 A) at:

TP1 = +25°C, VI = 12 V, CO = 2 mF.

Top trace: output voltage (100 mV/div.).

Bottom trace: load current (10 A/div.).

Time scale: (0.5 ms/div.).

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 12 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

5.5V, 18A / 99 W Electrical Specification BMR 450 0002/021

TP1 = -40 to +85ºC, VI = 8 to 14 V. Configuration: CDA 102 899/021.

Typical values given at: TP1 = +25°C, VI = 12 V, max IO, unless otherwise specified under Conditions.

Additional CI = 470 µF. See Operating Information section for selection of capacitor types.

Sense pins are connected to the output pins.

Characteristics Conditions min typ max Unit

VI Input voltage range 8 14 V

VIoff Turn-off input voltage Decreasing input voltage 6.0 V

VIon Turn-on input voltage Increasing input voltage 6.6 V

PO Output power 0 99 W

50 % of max IO 95.8

η Efficiency max IO 95.6

Pd Power dissipation 4.6 W

Pli Input idling power IO = 0.01 A 1.3 W

Turned off with CTRL, monitoring

enabled, see Note 3 120 mW

PRC Input standby power Low power mode, monitoring

disabled, see Note 3 20 mW

IS Static input current 8.7 A

VOi Output voltage initial setting and

accuracy 5.45 5.49 5.56 V

Output voltage tolerance band 0.05 - 100 % of max IO 5.42 5.58 V

Idling voltage IO = 0.01 A 5.49 V

Line regulation 5 mV

Load regulation 0.05 - 100 % of max IO 4 mV

Vtr1 Load transient

voltage deviation -230/+230 mV

ttr1 Load transient recovery time

Load step 25-75-25 % of max IO, di/dt

= 2.5 A/µs with default

configuration and CO = 2 mF 160 µs

CO Recommended capacitive load See Note 1 470 100 000 µF

tr Ramp-up time

(from 10 − 90 % of VOi) 10 ms

ts Start-up time

(from VI connection to 10 % of VOi)

0.05 - 100 % of max IO

36 ms

590 us

tf VI shut-down fall time.

(From VI off to 10 % of VO) IO = 1.8 A 7 ms

CTRL start-up time 20 ms

8 ms

tCTRL CTRL shut-down fall time

(From RC off to 10 % of VO) IO = 1.8 A 8 ms

IO Output current 0.01 18 A

Ilim Current limit threshold 37 40 A

Isc Short circuit current 45 A

VOac Output ripple & noise See Note 2 50 mVp-p

Note 1: See Operating Information section for selection of capacitor types.

Note 2: See Operating Information section for measurement set-up.

Note 3: See Operating Information section for Power Management Overview.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 13 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

5.5V, 18A / 99 W Typical Characteristics BMR 4 50 0002/021

Efficiency Power Dissipation

100

0369121518[A]

[%]

8 V

9.6V

12 V

14 V

0 3 6 9 12 15 18 [A]

[W]

8 V

9.6V

12 V

14 V

Efficiency vs. load current and input voltage at TP1 = +25°C. Dissipated power vs. load current and input voltage at

TP1 = +25°C.

Output Current Derating

0 30 60 90 120 [°C]

[A]

3.0 m/s

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

Nat. Conv.

Available load current vs. ambient air temperature and airflow at

VI = 12 V. See Thermal Consideration section.

Output Characteristics Current Limit Characteristics

5.30

5.40

5.50

5.60

5.70

0 3 6 9 121518[A]

[V]

8 V

9.6V

12 V

14 V

15 20 25 30 35 40 45 [A]

[V]

8 V

9.6V

12 V

14 V

Output voltage vs. load current at TP1 = +25°C.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 14 (15)

Prepared (also subject responsible if other) No.

EKAMAGN 2/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) ETORHOL 2010-03-02 H

5.5V, 18A / 99 W Typical Characteristics BMR 450 0002/021

Start-up Shut-down

Start-up enabled by connecting VI at:

TP1 = +25°C, VI = 12 V,

IO = 18 A resistive load.

Top trace: output voltage (2 V/div.).

Bottom trace: input voltage (10 V/div.).

Time scale: (20 ms/div.).

Shut-down enabled by disconnecting VI at:

TP1 = +25°C, VI = 12 V,

IO = 18 A resistive load.

Top trace: output voltage (2 V/div).

Bottom trace: input voltage (10 V/div.).

Time scale: (0.5 ms/div.).

Output Ripple & Noise Output Load Transient Response

Output voltage ripple at:

TP1 = +25°C, VI = 12 V,

IO = 18 A resistive load.

Trace: output voltage (20 mV/div.).

Time scale: (2 µs/div.).

Output voltage response to load current step-

change (5-15-5 A) at:

TP1 = +25°C, VI = 12 V, CO = 1.8 mF.

Top trace: output voltage (200 mV/div.).

Bottom trace: load current (10 A/div.).

Time scale: (0.5 ms/div.).

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 1 (7)

Prepared (also subject responsible if other) No.

EGUHAIL 30/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) EZIWSON 2011-12-20 K

EMC Specification

Conducted EMI measured according to test set-up and

standard MIL std 0141 - 58000.

The fundamental switching frequency is 320 kHz for

BMR 450.

Conducted EMI Input terminal value (typ)

EMI without filter

Test set-up

Layout Recommendations

The radiated EMI performance of the product will depend on

the PCB layout and ground layer design. It is also important to

consider the stand-off of the product. If a ground layer is used,

it should be connected to the output of the product and the

equipment ground or chassis.

A ground layer will increase the stray capacitance in the PCB

and improve the high frequency EMC performance.

Output Ripple and Noise

Output ripple and noise is measured with the filter according to

figure below. A 50 mm conductor works as a small inductor

forming together with the two capacitances a damped filter.

Output ripple and noise test set-up.

Operating Information

Input Voltage

The input voltage range, 4.5 - 14 V, makes the products easy

to use in intermediate bus applications when powered by a

non-regulated bus converter or a regulated bus converter. See

Ordering Information for input voltage range.

Turn-off Input Voltage Range

The product monitors the input voltage and will turn-on and

turn-off at configured levels. The default turn-on input voltage

level setting is 4.5 V, whereas the corresponding turn-off input

voltage level is 4.25 V. Hence, the default hysteresis between

turn-on and turn-off input voltage is 0.25 V. The turn-on and

turn-off levels can be reconfigured using the PMBus interface.

Please contact your local Ericsson Power Modules

representative for design support of custom configurations or

appropriate SW tools for design and down-load of new

configurations.

Remote Control

The product is equipped with a

remote control function, i.e., the

CTRL pin. The remote control

can be referenced to either the

primary negative input

connection (GND) or to an

external voltage (Vext), which is

a 3 - 5 V positive supply voltage

in accordance with the SMBus

Specification version 2.0. The CTRL function allows the

product to be turned on/off by an external device like a

semiconductor or mechanical switch. By default the product

will turn on with the CTRL pin is left open and turn off when the

CTRL pin is applied to GND. The CTRL pin has an internal

pull-up resistor. The maximum required sink current is 0.5 mA.

When the CTRL pin is left open, the voltage generated on the

CTRL pin is max 6 V. The product can also be configured

using the PMBus to be “Always on”, i.e., starts immediately

Vout

S

S

GND

Ceramic

Capacitor

0.1 µF

Tantalum

Capacitor

10 µF

Load

50 mm conductor

BNC-contact to

oscillosco

CTRL

GND

Vext

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 2 (7)

Prepared (also subject responsible if other) No.

EGUHAIL 30/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) EZIWSON 2011-12-20 K

when an appropriate input voltage is applied, or turn on/off can

be performed with PMBus commands. Please contact your

local Ericsson Power Modules representative for design

support of custom configurations or appropriate SW tools for

design and down-load of new configurations.

Input and Output Impedance

The impedance of both the input source and the load will

interact with the impedance of the product. It is important that

the input source has low characteristic impedance. The

products are designed for stable operation without external

capacitors connected to the input or output. The performance

in some applications can be enhanced by addition of external

capacitance as described under External Capacitors. If the

input voltage source contains significant inductance, the

addition of a 470 µF capacitor with low ESR at the input of the

product will ensure stable operation.

External Decoupling Capacitors

Input capacitors:

The recommended input capacitor has a minimum capacitance

of 470 µF and a low ESR. The ripple current rating of the

capacitor must be at least 4 A rms. For high-

performance/transient applications or wherever the input

source performance is degraded, additional low ESR ceramic

type capacitors at the input is recommended. The additional

input low ESR capacitance above the minimum level insures

an optimized performance.

Output capacitors:

The recommended output capacitor has a minimum

capacitance of 470 µF and a low ESR. When powering loads

with significant dynamic current requirements, the voltage

regulation at the point of load can be improved by addition of

decoupling capacitors at the load.

The most effective technique is to locate low ESR ceramic and

electrolytic capacitors as close to the load as possible, using

several capacitors in parallel to lower the effective ESR. The

ceramic capacitors will handle high-frequency dynamic load

changes while the electrolytic capacitors are used to handle

low frequency dynamic load changes. Ceramic capacitors will

also reduce high frequency noise at the load.

It is equally important to use low resistance and low inductance

PCB layouts and cabling.

External decoupling capacitors are a part of the control loop of

the product and may affect the stability margins. The ESR of

the capacitors is a very important parameter. Stable operation

is guaranteed for an ESR value of >5 m and a total

capacitance in the range defined in the electrical specification.

For a total capacitance outside this range or with lower ESR a

re-configuration will be necessary for robust dynamic operation

and stability. Please contact your local Ericsson Power

Modules representative for design support of custom

configurations or appropriate SW tools for design and down-

load of new configurations.

Control Loop Compensation

The product is configured with a robust control loop

compensation which allows for a wide range operation of input

and output voltages and capacitive loads as defined in the

electrical specification. For an application with a specific input

voltage, output voltage, and capacitive load, the control loop

can be optimized for a robust and stable operation and with an

improved load transient response. Please contact your local

Ericsson Power Modules representative for design support of

custom configurations or appropriate SW tools for design and

down-load of new configurations.

Load Transient Respo nse Optimization

The product incorporates a Non-Linear transient Response,

NLR, loop that decreases the response time and the output

voltage deviation during a load transient. The NLR results in a

higher equivalent loop bandwidth than is possible using a

traditional linear control loop. The product is pre-configured

with appropriate NLR settings for robust and stable operation

for a wide range of input voltage and a capacitive load range

as defined in the electrical specification. For an application with

a specific input voltage, output voltage, and capacitive load,

the NLR configuration can be optimized for a robust and stable

operation and with an improved load transient response.

Please contact your local Ericsson Power Modules

representative for design support of custom configurations or

appropriate SW tools for design and down-load of new

configurations.

Remote Sense

The product has remote sense that can be used to

compensate for voltage drops between the output and the

point of load. The sense traces should be located close to the

PCB ground layer to reduce noise susceptibility. The remote

sense circuitry will compensate for up to 10% voltage drop

between output pins and the point of load.

If the remote sense is not needed +S should be connected to

VOUT and S should be connected to GND.

Output Voltage Adjust using External Resistor

With Analog Output Voltage Adjust the output voltage can be

set in the range 0.7 V to 5.0 V at 25 different levels by an

external resistor, RSET, which is applied between the FLEX pin

and the S pin. The resistor is sensed during boot-up of the

regulator. Changing the resistor during normal operation will

not change the output voltage. The input voltage must be at

least 1 V larger than the output voltage in order to deliver the

correct output voltage. If the input voltage is lower, the product

will still deliver power with a lower output voltage than the set

output voltage. The product will turn off at the input turn-off

voltage level, according to Turn-off Input Voltage Range.

Analog output voltage adjust with external resistor.

FLEX

S

RSET

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 3 (7)

Prepared (also subject responsible if other) No.

EGUHAIL 30/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) EZIWSON 2011-12-20 K

The following table shows recommended resistor values for

RSET.

Rset[k] Rset[k]

VOUT

[V] Min Typ Max VOUT [V] Min Typ Max

0.7 155.00 159.00 169.00 0.991 21.38 21.60 21.82

0.752 109.89 111.00 112.11 1.00 18.51 18.70 18.89

0.758 99.00 100.00 101.00 1.10 15.94 16.10 16.26

0.765 89.10 90.00 90.90 1.158 13.56 13.70 13.84

0.772 80.09 80.90 81.71 1.20 11.39 11.50 11.62

0.79 64.35 72.50 73.23 1.25 9.50 9.60 9.70

0.80 57.52 58.10 58.68 1.50 7.72 7.80 7.88

0.821 51.38 51.90 52.42 1.669 6.14 6.20 6.26

0.848 40.69 41.10 41.51 1.80 4.65 4.70 4.75

0.88 36.04 36.40 36.76 2.295 3.27 3.30 3.33

0.899 31.88 32.20 32.52 2.506 2.08 2.10 2.12

0.919 28.02 28.30 28.58 3.30 0.99 1.00 1.01

0.965 24.55 24.80 25.05 5.00 0.00 0.00 0.05

Output Voltage Adjust using PMBus

The output voltage of the product can be reconfigured using

the PMBus interface in the range 0.6 V to 5.5 V with the

resolution of 1 mV. Please contact your local Ericsson Power

Modules representative for design support of custom

configurations or appropriate SW tools for design and down-

load of new configurations.

Maximum Output Voltage Protection

The regulator can be configured for maximum output voltage

protection. The Analog Voltage Adjust sets the maximum

output voltage equal to 10% higher than the nominal output

value set by the RSET. This works as a hardware protection for

the load, avoiding destroying the load by an over voltage.

Please contact your local Ericsson Power Modules

representative for design support of custom configurations or

appropriate SW tools for design and down-load of new

configurations.

Synchronization

Synchronization is a feature that allows multiple DC/DC

regulators to be synchronized to a common frequency.

Synchronized regulators powered from the same bus eliminate

beat frequencies reflected back to the input supply, and also

reduces EMI filtering requirements. Eliminating the slow beat

frequencies (usually < 10 kHz) allows the EMI filter to be

designed to attenuate only the synchronization frequency.

Synchronization can also be utilized for interleaving, described

in section Interleaving. The product FLEX pin can be

configured for synchronization. Hence, Analog Voltage Adjust

is disabled, when the synchronization is enabled. The

regulators can be synchronized with an external oscillator or

one regulator can be configured with the FLEX pin as an SYNC

Output working as a master driving the synchronization. All

others on the same synchronization bus should be configured

with SYNC Input or SYNC Auto Detect (Default configuration)

for correct operation. When the FLEX pin is configured in auto

detect mode the product will automatically check for a clock

signal on the FLEX pin. The switching frequency can also be

set to any value between 200 kHz and 400 kHz using the

PMBus interface. Please contact your local Ericsson Power

Modules representative for design support of custom

configurations or appropriate SW tools for design and down-

load of new configurations.

Interleaving/Phase Spread ing

When multiple DC/DC regulators share a common DC input

supply, interleaving, or spreading of the switching clock phase

between the regulators can be utilized. This dramatically

reduces input capacitance requirements and efficiency losses,

since the peak current drawn from the input supply is

effectively spread out over the whole switch period. This

requires that the DC/DC regulators are synchronized. Up to 16

different interleaving phases can be used. The interleaving of

the product can be reconfigured using the PMBus interface.

Please contact your local Ericsson Power Modules

representative for design support of custom configurations or

appropriate SW tools for design and down-load of new

configurations.

Parallel Operation

Parallel operation is not recommended.

Over Temperature Protection (OTP)

The products are protected from thermal overload by an

internal over temperature shutdown circuit.

When TP1 as defined in thermal consideration section exceeds

120°C the product will shut down. The product will make

continuous attempts to start up (non-latching mode) and

resume normal operation automatically when the temperature

has dropped >15°C below the temperature threshold. The OTP

and hysteresis of the product can be reconfigured using the

PMBus interface. Please contact your local Ericsson Power

Modules representative for design support of custom

configurations or appropriate SW tools for design and down-

load of new configurations.

Over Current Protection (OCP)

The product includes current limiting circuitry for protection at

continuous overload. The product will shut down immediately

for output currents in excess of the current limit, Ilim. The

product will try to restart every 70 ms, i.e., hiccup mode, and

resume normal operation after removal of the overload. The

load distribution should be designed for the maximum output

short circuit current specified. The OCP of the product can be

reconfigured using the PMBus interface. Please contact your

local Ericsson Power Modules representative for design

support of custom configurations or appropriate SW tools for

design and down-load of new configurations.

Soft-start Power Up

The soft-start control introduces a time-delay (default setting 10

ms) before allowing the output voltage to rise. The default rise

time of the ramp up is 10 ms. Power-up is hence completed

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 4 (7)

Prepared (also subject responsible if other) No.

EGUHAIL 30/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) EZIWSON 2011-12-20 K

within 20 ms in default configuration using remote control.

When starting by applying input voltage the control circuit boot-

up time adds an additional 10 ms delay. The soft-start power

up of the product can be reconfigured using the PMBus

interface. Please contact your local Ericsson Power Modules

representative for design support of custom configurations or

appropriate SW tools for design and down-load of new

configurations.

Output Voltage Sequencing

A group of regulators may be configured to power up in a

predetermined sequence. This feature is especially useful

when powering advanced processors, FPGAs, and ASICs that

require one supply to reach its operating voltage prior to

another supply reaching its operating voltage. Multi-regulator

sequencing can be achieved by configuring each device start

delay and rise time through the PMBus and use the same

remote control start signal. Please contact your local Ericsson

Power Modules representative for design support of custom

configurations or appropriate SW tools for design and down-

load of new configurations.

Voltage Margining Up/Down

The regulator can momentarily adjust its output higher or lower

than its nominal voltage setting in order to determine whether

the load device is capable of operating over its specified supply

voltage range. This provides a convenient method for

dynamically testing the operation of the load circuit over its

supply margin or range. It can also be used to verify the

function of supply voltage supervisors. Margin limits of the

nominal output voltage ±5% are default, but the margin limits

can be reconfigured using the PMBus interface to as high as

10% or as low as 0V. Please contact your local Ericsson Power

Modules representative for design support of custom

configurations or appropriate SW tools for design and down-

load of new configurations.

Pre-Bias Startup Capability

Pre-bias startup often occurs in complex digital systems when

current from another power source is fed back through a dual-

supply logic component, such as FPGAs or ASICs. The BMR

450 product family incorporates synchronous rectifiers, but will

not sink current during startup, or turn off, or whenever a fault

shuts down the product in a pre-bias condition with right

configuration. Please contact your local Ericsson Power

Modules representative for design support of custom

configurations or appropriate SW tools for design and down-

load of new configurations.

I2C/SMBus Setup and Hold Times – Definitions

The setup time, tset, is the time the data, SDA, must be stable

before the rising edge of the clock signal, SCL. The hold time

thold, is the time the data must be stable after the rising edge of

the clock signal, SCL. If these times are violated incorrect data

can be captured or meta-stability can occur and the bus

communication fails.

SCL

SDA

tset thold

VIH

VIL

VIH

VIL

SMBus timing diagram

Thermal Consideration

General

The regulators are designed to operate in different thermal

environments and sufficient cooling must be provided to

ensure reliable operation.

Cooling is achieved mainly by conduction, from the pins to the

host board, and convection, which is dependant on the airflow

across the regulator. Increased airflow enhances the cooling of

the regulator.

The Output Current Derating graph found in the Output section

for each model provides the available output current vs.

ambient air temperature and air velocity at specified VI.

The products with an output power of W are tested on a

254 x 254 mm, 35 µm (1 oz), 16-layer test board, and for

output power of

100

100



W a 254 x 254 mm, 35 µm (1 oz), 8-

layer test board are used. The test board is mounted vertically

in a wind tunnel with a cross-section of 608 x 203 mm.

Proper cooling of the product can be verified by measuring the

temperature at positions P1 and P2. The temperature at these

positions should not exceed the max values provided in the

table below.

Note that the max value is the absolute maximum rating

(non destruction) and that the electrical Output data is

guaranteed up to TP1 +85°C.

See Design Note 019 for further information.

Position Device Designation max

P1 Reference point, L1, inductor TP1 120º C

P2 N1, control circuit TP2 120º C

Temperature positions and air flow direction.

AIR FLOW

P2 P1

Bottom view Top view

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 5 (7)

Prepared (also subject responsible if other) No.

EGUHAIL 30/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) EZIWSON 2011-12-20 K

Definition of reference temperature TP1

The reference temperature is used to monitor the temperature

limits of the product. Temperature above maximum TP1 ,

meassured at the reference point P1 are not allowed and may

cause degradation or permanent damage to the product. TP1 is

also used to define the temperature range for normal operating

conditions. TP1 is defined by the design and used to guarantee

safety margins, proper operation and high reliability ot the

product.

Power Management Overv iew

The product incorporates a wide range of monitorable and

configurable power management features that are simple to

implement with a minimum of external components.

Additionally, the product includes protection features that

continuously safeguard the load from damage due to

unexpected system faults. A fault is also shown as an alert on

the SALERT pin. The following product parameters can

continuously be monitored by a host: Input voltage, output

voltage/current, and internal temperature. If the monitoring is

not needed it can be disabled and the module enters a low

power mode reducing the power consumption. The protection

features are not affected.

All power management functions can be configured via the

PMBus interface. Monitoring parameters can be pre-

configured to provide alerts for specific conditions. Please

contact your local Ericsson Power Modules representative for

design support of custom configurations or appropriate SW

tools for design and down-load of new configurations.

Efficiency Optimized Dead Time Control

The regulator utilizes a closed loop algorithm to optimize the

dead-time applied between the gate drive signals for the

switch and synch FETs. The algorithm constantly adjusts the

deadtime non-overlap to minimize the duty cycle, thus

maximizing efficiency. This algorithm will null out deadtime

differences due to component variation, temperature and

loading effects. The algorithm can be configured via the

PMBus. Please contact your local Ericsson Power Modules

representative for design support of custom configurations or

appropriate SW tools for design and down-load of new

configurations.

Connections

Pin layout, top view.

Pin Designation Function

1A VIN Input Voltage

2A GND Power Ground

3A VOUT Output Voltage

4A +S Positive sense

4B S Negative sense

5A SA0 Address pin 0

5B SA1 Address pin 1

6A SCL PMBus Clock

6B SDA PMBus Data

7A FLEX

Analog voltage adjust /

Synchronization

7B DGND PMBus Ground

8A SALERT PMBus Alert

8B CTRL

PMBus Control

(Remote Control)

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 6 (7)

Prepared (also subject responsible if other) No.

EGUHAIL 30/1301-BMR 450 0002 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) EZIWSON 2011-12-20 K

Typical Application Circuits

typical application circuit when using Analog Voltage Adjust.

typical application circuit when using Synchronization and

PMBus Voltage Adjust.

The resistors, RSA0 and RSA1, are used for adressing, described in

section Adressing

7A 7B

6A 6B

5A 5B

4A 4B



Load





Supply



RSET

BMR 450

PMBus (SALERT,

SDA, SCL, DGND)

RSA0 R

SA1

CTRL



Load



CO 



Supply



Sync

BMR 450

PMBus (SALERT,

SDA, SCL, DGND)

RSA0 R

SA1

5A 5B

4A 4B

6A 6B

7A 7B

CTRL

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 1 (4)

Prepared (also subject responsible if other) No.

EGUHAIL 31/1301-BMR 450 00/02 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) EZIWSON 2011-12-20 D

PMBus Interface

The regulator provides a digital PMBus interface that enables

the user to monitor the input and output par ameters. The

PMBus interface can also be used for configuration of the

regulator. The products can be used with any standard 2-wire

I2C or SMBus host device. In addition, the device is compatible

with PMBus version 1.1 and includes an SALERT line to help

mitigate bandwidth limitations related to continuous fault

monitoring. The PMBus signals, SCL, SDA, SALERT requires

passive pull-up resistors as stated in the SMBus Specification.

Monitoring via PMBus

A system controller can monitor a wide variety of differe nt

parameters through the PMBus interface. The controller can

monitor for fault condition by monitoring the SALERT pin,

which will be asserted when any number of pre-configured

fault or warning conditions occur. The system controller can

also continuously monitor for any number of power conversi on

parameters including but not limited to the following:

 Input voltage

 Output voltage

 Output current

 Internal junction temperature

 Switching frequency

 Duty cycle

Software Tools for Design and Production

Ericsson provides soft ware for configuration and monitoring of

this product via the PMBus interface.

For more information please contact your local

Ericsson sales representative.

PMBus Addressing

The PMBus address should be config ured with resistors

connected between SA0 and SA1 pin to the –S pin, as shown

in the figure. Recommended resistor values for hard-wiring

PMBus addresses (series E96, 1% tolerance resistors

suggested) are shown in the table.

Schematic of connection of address resistors.

SA0/SA1 Index RSA0/RSA1 [k] SA0/SA1 Index RSA0/RSA1 [k]

0 10 13 34.8

1 11 14 38.3

2 12.1 15 42.2

3 13.3 16 46.4

4 14.7 17 51.1

5 16.2 18 56.2

6 17.8 19 61.9

7 19.6 20 68.1

8 21.5 21 75

9 23.7 22 82.5

10 26.1 23 90.9

11 28.7 24 100

12 31.6

The PMBus address follo ws the equation b elow:

PMBus Address = 25 x (SA1 index) + (SA0 index)

The user can theoretically configure up to 625 unique PMBus

addresses, however the PMBus address ran ge is inherently

limited to 128. Therefore, the user should use index values 0 -

4 on the SA1 pin and the full range of ind ex values on the SA0

pin, which will provide 102 device address combinations (T he

address 0d75 is allocated for production needs and can not be

used). The user shall also be aware of further limitations of the

address space as stated in the SMBus Specific ation(Note that

0-12, 40, 44, 45, 55, 64-68 in decimal are reserved and may

not be usable).

SA0

SA1

S

RSA1 RSA0

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 2 (4)

Prepared (also subject responsible if other) No.

EGUHAIL 31/1301-BMR 450 00/02 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) EZIWSON 2011-12-20 D

PMBus Commands

The DC/DC regulators are PMBus compliant. The following

table lists the implemented PMBus commands. For more

detailed information see PMBus Power System Management

Protocol Specification; Part I – General Requirements,

Transport and Electrical Interface and PMBus Power System

Management Protocol; Part II – Command Language.

Designation Cmd Impl

Standard PMBus Commands

Control Commands

PAGE 00h No

OPERATION 01h Yes

ON_OFF_CONFIG 02h Yes

WRITE_PROTECT 10h No

Output Commands

VOUT_MODE (Read Only) 20h Yes

VOUT_COMMAND 21h Yes

VOUT_TRIM 22h Yes

VOUT_CAL_GAIN 23h Yes

VOUT_MAX 24h Yes

VOUT_MARGIN_HIGH 25h Yes

VOUT_MARGIN_LOW 26h Yes

VOUT_TRANSITION_RATE 27h Yes

VOUT_DROOP 28h Yes

MAX_DUTY 32h Yes

FREQUENCY_SWITCH 33h Yes

IOUT_CAL_GAIN 38h Yes

IOUT_CAL_OFFSET 39h Yes

VOUT_SCALE_LOOP 29h No

VOUT_SCALE_MONITOR 2Ah No

COEFFICIENTS 30h No

Fault Limit Commands

POWER_GOOD_ON 5Eh Yes

VOUT_OV_FAULT_LIMIT 40h Yes

VOUT_UV_FAULT_LIMIT 44h Yes

IOUT_OC_FAULT_LIMIT 46h Yes

IOUT_UC_FAULT_LIMIT 4Bh Yes

OT_FAULT_LIMIT 4Fh Yes

OT_WARN_LIMIT 51h Yes

UT_WARN_LIMIT 52h Yes

UT_FAULT_LIMIT 53h Yes

VIN_OV_FAULT_LIMIT 55h Yes

VIN_UV_WARN_LIMIT 58h Yes

VIN_UV_FAULT_LIMIT 59h Yes

VOUT_OV_WARN_LIMIT 42h No

VOUT_UV_WARN_LIMIT 43h No

IOUT_OC_WARN_LIMIT 4Ah No

Fault Response Commands

VOUT_OV_FAULT_RESPONSE 41h Yes

VOUT_UV_FAULT_RESPONSE 45h Yes

OT_FAULT_RESPONSE 50h Yes

UT_FAULT_RESPONSE 54h Yes

VIN_OV_FAULT_RESPONSE 56h Yes

VIN_UV_FAULT_RESPONSE 5Ah Yes

IOUT_OC_FAULT_RESPONSE 47h No

IOUT_UC_FAULT_RESPONSE 4Ch No

Time setting Commands

TON_DELAY 60h Yes

TON_RISE 61h Yes

TOFF_DELAY 64h Yes

TOFF_FALL 65h Yes

TON_MAX_FAULT_LIMIT 62h No

Status Commands (Read Only)

CLEAR_FAULTS 03h Yes

STATUS_BYTE 78h Yes

STATUS_WORD 79h Yes

STATUS_VOUT 7Ah Yes

STATUS_IOUT 7Bh Yes

STATUS_INPUT 7Ch Yes

STATUS_TEMPERATURE 7Dh Yes

STATUS_CML 7Eh Yes

Monitor Commands (Read Only)

READ_VIN 88h Yes

READ_VOUT 8Bh Yes

READ_IOUT 8Ch Yes

READ_TEMPERATURE_1 8Dh Yes

READ_TEMPERATURE_2 8Eh No

READ_FAN_SPEED_1 90h No

READ_DUTY_CYCLE 94h Yes

READ_FREQUENCY 95h Yes

Identification Commands (Read Only)

PMBUS_REVISION 98h Yes

MFR_ID 99h Yes

MFR_MODEL 9Ah Yes

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPECIFICATION 3 (4)

Prepared (also subject responsible if other) No.

EGUHAIL 31/1301-BMR 450 00/02 Uen

Approved Checked Date Rev Reference

SEC/D (Julia You) EZIWSON 2011-12-20 D

MFR_LOCATION 9Ch Yes

MFR_DATE 9Dh Yes

MFR_SERIAL 9Eh Yes

Group Commands

INTERLEAVE 37h Yes

Supervisory Commands

STORE_DEFAULT_ALL 11h Yes

RESTORE_DEFAULT_ALL 12h Yes

STORE_USER_ALL 15h No

RESTORE_USER_ALL 16h No

BMR 450 Specific Commands

Time Setting Commands

POWER_GOOD_DELAY D4h Yes

Fault limit Commands

IOUT_AVG_OC_FAULT_LIMIT E7h Yes

IOUT_AVG_UC_FAULT_LIMIT E8h Yes

Fault Response Commands

MFR_IOUT_OC_FAULT_RESPONSE E5h Yes

MFR_IOUT_UC_FAULT_RESPONSE E6h Yes

OVUV_CONFIG D8h Yes

Configuration and Control Commands

MFR_CONFIG D0h Yes

USER_CONFIG D1h Yes

PID_TAPS D5h Yes

NLR_CONFIG D7h Yes

TEMPCO_CONFIG DCh Yes

DEADTIME DDh Yes

DEADTIME_CONFIG DEh Yes

POLA_VADJ_CONFIG D6h Yes

Group Commands

SEQUENCE E0h Yes

Supervisory Commands

USER_PASSWORD (PUBLIC) FCh Yes

UNPROTECT FDh Yes

SECURITY_LEVEL FAh Yes

Notes:

Cmd is short for Command.

Impl is short for Implemented.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPEC. MECHANICAL 1 (3)

Prepared (also subject responsible if other) No.

EPETSCH 4/1301 - BMR 450 Uen

Approved Checked Date Rev Reference

EAB/FJB/GMF [N Johansson] See §1 2009-03-24 C

Mechanical Information — Hole Mount, Open Frame Version

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPEC. MECHANICAL 2 (3)

Prepared (also subject responsible if other) No.

EPETSCH 4/1301 - BMR 450 Uen

Approved Checked Date Rev Reference

EAB/FJB/GMF [N Johansson] See §1 2009-03-24 C

Mechanical Information — Surface Mount Version

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPEC. 1 (4)

Prepared (also subject responsible if other) No.

EPETSCH 5/1301-BMR450 Uen

Approved Checked Date Rev Reference

EAB/FJB/GKF [G.Eriksson] See §1 2008-09-16 B

Soldering Information – Surface Mounting

The surface mount product is intended for forced convection

or vapor phase reflow soldering in SnPb and Pb-free

processes.

The reflow profile should be optimised to avoid excessive

heating of the product. It is recommended to have a

sufficiently extended preheat time to ensure an even

temperature across the host PCB and it is also recommended

to minimize the time in reflow.

A no-clean flux is recommended to avoid entrapment of

cleaning fluids in cavities inside the product or between the

product and the host board, since cleaning residues may

affect long time reliability and isolation voltage.

Minimum Pin Temperature Recommendations

Pin number 2A is chosen as reference location for the

minimum pin temperature recommendation since this will likely

be the coolest solder joint during the reflow process.

SnPb solder processes

For SnPb solder processes, a pin temperature (T

) in

excess of the solder melting temperature, (T

, 183°C for

Sn63Pb37) for more than 30 seconds and a peak

temperature of 210°C is recommended to ensure a reliable

solder joint.

For dry packed products only: depending on the type of solder

paste and flux system used on the host board, up to a

recommended maximum temperature of 245°C could be used,

if the products are kept in a controlled environment (dry pack

handling and storage) prior to assembly.

General reflow process specifications SnPb eutectic Pb-free

Average ramp-up (T

PRODUCT

) 3°C/s max 3°C/s max

Typical solder melting (liquidus)

temperature T

183°C 221°C

Minimum reflow time above T

30 s 30 s

Minimum pin temperature T

210°C 235°C

Peak product temperature T

PRODUCT

225°C 260°C

Average ramp-down (T

PRODUCT

) 6°C/s max 6°C/s max

Maximum time 25°C to peak 6 minutes 8 minutes

PRODUCT

maximum

minimum

Time

profile

Product

profile

Time in

reflow

Time in preheat

/ soak zone

Time 25°C to peak

Temperature

Lead-free (Pb-free) solder processes

For Pb-free solder processes, a pin temperature (T

) in

excess of the solder melting temperature (T

, 217 to 221°C for

SnAgCu solder alloys) for more than 30 seconds and a peak

temperature of 235°C on all solder joints is recommended to

ensure a reliable solder joint.

Maximum Product Temperature Requirements

Top of the product PCB near pin 8B is chosen as reference

location for the maximum (peak) allowed product temperature

PRODUCT

) since this will likely be the warmest part of the

product during the reflow process.

SnPb solder processes

For SnPb solder processes, the product is qualified for MSL 1

according to IPC/JEDEC standard J-STD-020C.

During reflow T

PRODUCT

must not exceed 225 °C at any time.

Pb-free solder processes

For Pb-free solder processes, the product is qualified for

MSL 3 according to IPC/JEDEC standard J-STD-020C.

During reflow T

PRODUCT

must not exceed 260 °C at any time.

Dry Pack Information

Products intended for Pb-free reflow soldering processes are

delivered in standard moisture barrier bags according to

IPC/JEDEC standard J-STD-033 (Handling, packing, shipping

and use of moisture/reflow sensitivity surface mount devices).

Using products in high temperature Pb-free soldering

processes requires dry pack storage and handling. In case the

products have been stored in an uncontrolled environment

and no longer can be considered dry, the modules must be

baked according to J-STD-033.

Thermocoupler Attachment

Pin 2A for measurement of minimum

Pin (solder joint) temperature T

Pin 8B for measurement of maximum

roduct tem

erature T

PRODUCT

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPEC. 2 (4)

Prepared (also subject responsible if other) No.

EPETSCH 5/1301-BMR450 Uen

Approved Checked Date Rev Reference

EAB/FJB/GKF [G.Eriksson] See §1 2008-09-16 B

Soldering Information - Hole Mounting

The hole mounted product is intended for plated through hole

mounting by wave or manual soldering. The pin temperature is

specified to maximum to 270°C for maximum 10 seconds.

A maximum preheat rate of 4°C/s and maximum preheat

temperature of 150°C is suggested. When soldering by hand,

care should be taken to avoid direct contact between the hot

soldering iron tip and the pins for more than a few seconds in

order to prevent overheating.

A no-clean flux is recommended to avoid entrapment of

cleaning fluids in cavities inside the product or between the

product and the host board. The cleaning residues may affect

long time reliability and isolation voltage.

Delivery Package Information

The products are delivered in antistatic injection molded trays

(Jedec design guide 4.10D standard).

Tray Specifications

Material Antistatic PPE

Surface resistance 10

< Ohm/square < 10

Bakability The trays can be baked at maximum

125°C for 48 hours

Tray thickness 14.50 mm 0.571 [inch]

Box capacity 300 products (5 full trays/box)

Tray weight 160 g empty, 490 g full tray

JEDEC standard tray for 6x10 = 60 products.

All dimensions in mm [inch]

Tolerances: X.x ±0.26 [0.01], X.xx ±0.13 [0.005]

Note: pick up positions refer to center of pocket.

See mechanical drawing for exact location on product.

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation

Ericsson Internal

PRODUCT SPEC. 3 (4)

Prepared (also subject responsible if other) No.

EPETSCH 5/1301-BMR450 Uen

Approved Checked Date Rev Reference

EAB/FJB/GKF [G.Eriksson] See §1 2008-09-16 B

Product Qualification Specification

Characteristics

External visual inspection IPC-A-610

Change of temperature

(Temperature cycling) IEC 60068-2-14 Na

Temperature range

Number of cycles

Dwell/transfer time

-40 to 100°C

1000

15 min/0-1 min

Cold (in operation) IEC 60068-2-1 Ad Temperature T

Duration

-45°C

72 h

Damp heat IEC 60068-2-67 Cy

Temperature

Humidity

Duration

85°C

85 % RH

1000 hours

Dry heat IEC 60068-2-2 Bd Temperature

Duration

125°C

1000 h

Electrostatic discharge

susceptibility

IEC 61340-3-1, JESD 22-A114

IEC 61340-3-2, JESD 22-A115

Human body model (HBM)

Machine Model (MM)

Class 2, 2000 V

Class 3, 200 V

Immersion in cleaning solvents IEC 60068-2-45 XA, method 2

Water

Glycol ether

Isopropyl alcohol

55°C

35°C

Mechanical shock IEC 60068-2-27 Ea Peak acceleration

Duration

100 g

6 ms

Moisture reflow sensitivity

J-STD-020C Level 1 (SnPb-eutectic)

Level 3 (Pb Free)

225°C

260°C

Operational life test MIL-STD-202G, method 108A Duration 1000 h

Resistance to soldering heat

IEC 60068-2-20 Tb, method 1A Solder temperature

Duration

270°C

10-13 s

Robustness of terminations IEC 60068-2-21 Test Ua1

IEC 60068-2-21 Test Ue1

Through hole mount products

Surface mount products

All leads

Solderability

IEC 60068-2-58 test Td

IEC 60068-2-20 test Ta

Preconditioning

Temperature, SnPb Eutectic

Temperature, Pb-free

Preconditioning

Temperature, SnPb Eutectic

Temperature, Pb-free

150°C dry bake 16 h

215°C

235°C

Steam ageing

235°C

245°C

Vibration, broad band random IEC 60068-2-64 Fh, method 1

Frequency

Spectral density

Duration

10 to 500 Hz

0.07 g

/Hz

10 min in each direction

Notes

Only for products intended for reflow soldering (surface mount products)

Only for products intended for wave soldering (plated through hole products)

BMR 450 Digital PoL Regulators

Input 4.5-14 V, Output up to 20 A / 100 W

EN/LZT 146 400 R4B December 2011

Technical Speciﬁcation