URF4812QB-100WFR3 - Mornsun America

DC/DC Converter

URF_QB-100W(F)R3 Series

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100W, wide input voltage, isolated & regulated single

output DC-DC converter

Patent Protection RoHS

FEATURES

Ultra wide input voltage range (4:1)

High efficiency up to 94%

Isolation voltage: 2.25K VDC

Input under-voltage protection, output short

circuit, over-current, over–voltage,

over-temperature protection

Operating temperature range: -40℃to +85℃

Five-sided metal shielding package

International standard pin-out: 1/4 brick

URF_QB -100W(F)R3 series are isolated 100W DC-DC products with 4:1 input voltage. They feature efficiency up to 94%, 2250VDC isolation,

operating temperature of -40℃to +85℃, Input under-voltage protection, output short circuit protection, over-current protection,

over–voltage protection, over-temperature protection and EMI meets CISPR22/EN55022 CLASS B, which make them widely applied in

battery power supplies, industrial control, electricity, instruments, railway, communication fields.

Selection Guide

Part No.①

Input Voltage (VDC)

Output

Efficiency

(%,Min./Typ.)

@ Full Load

Max. Capacitive

Load(µF)

Nominal

(Range)

Max.②

Output

Voltage(VDC)

Output Current

(A)(Max.)

Vin=24V

Vin=48V

URF4805QB-100W(F) R3

(18-75)

91/93

89/91

6000

URF4812QB-100W(F) R3

8.3

91/93

90/92

2000

URF4815QB-100W(F) R3

6.7

92/94

91/93

2000

URF4824QB-100W(F) R3

4.2

91/93

90/92

1000

URF4848QB-100W(F) R3

2.1

91/93

90/92

470

Note:

①"F" means product with aluminium bottom case;

②Exceeding the maximum input voltage may cause permanent damage.

Input Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Input Current (full load/no-load)

Nominal input voltage

2265/50

2341/80

Reflected Ripple Current

Nominal input voltage

Surge Voltage (1sec. max.)

-0.7

VDC

Start-up Threshold Voltage

Input Under-voltage Protection

URF4805QB-100W(F)R3、URF4815QB-100W(F) R3

16.5

Others

15.5

Input Filter

Pi filter

Ctrl*

Module switch on

Ctrl open circuit or connected to TTL high level

(3.5-12VDC)

Module switch off

Ctrl pin connected to GND or low level

(0-1.2VDC)

Input current when switched off

Hot Plug

Unavailable

Note: * The voltage of Ctrl pin is relative to input pin GND.

DC/DC Converter

URF_QB-100W(F)R3 Series

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Output Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Output Voltage Accuracy

±1

±3

Line Regulation

Full load, the input voltage is from low to high

±0.2

±0.5

Load Regulation

5%-100% load

±0.5

±0.75

Transient Recovery Time

25% load step change

200

500

µs

Transient Response Deviation

25% load step change

5V output

±3

±7.5

Others

±3

±5

Temperature Coefficient

Full load

±0.03

%/℃

Ripple & Noise*

20MHz bandwidth

12V/15V output

100

200

mVp-p

Others

130

250

Output Over-voltage Protection

Input voltage range

110

125

160

%Vo

Output Over-current Protection

110

125

190

%Io

Short-circuit Protection

Hiccup, Continuous, self-recovery

Note: *Ripple and noise are measured by “parallel cable” method, please see DC-DC Converter Application Notes for specific operation.

General Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Insulation Voltage

Input-output

With the test time of 1 minute and the

leak current less than 5mA

2250

VDC

Input-case

1500

Output-case

500

Insulation Resistance

Input-output, insulation voltage 500VDC

1000

MΩ

Isolation Capacitance

Input-output, 100KHz/0.1V

2200

Trim*

110

%Vo

Sense

105

Operating Temperature

-40

+85

℃

Storage Temperature

-55

+125

Over-temperature Protection

+95

+105

+115

Pin Welding Resistance

Temperature

Wave-soldering, 10 seconds

+260

Welding spot is 1.5mm away from the casing, 10 seconds

+300

Storage Humidity

Non-condensing

%RH

Vibration

IEC/EN61373 car body 1 B mold

Switching Frequency

PFM mode

250

KHz

MTBF

MIL-HDBK-217F@25℃

500

K hours

Note: *The URF4805QB-100W (F)R3 and URF4815QB-100W (F)R3, Trim and Sense function meet output up to 10%, Vin need exceed 20VDC.

Physical Specifications

Casing Material

Aluminum alloy case, Black flame-retardant and heat-resistant plastic bottom case (UL94 V-0)

Dimension

URF48xxQB-100WR3

61.8*40.2*12.7 mm

URF48xxQB-100WFR3

62.0*56.0*14.6 mm

Weight

URF48xxQB-100WR3

70g(Typ.)

URF48xxQB-100WFR3

90g(Typ.)

Cooling method

Natural convection or Forced convection

DC/DC Converter

URF_QB-100W(F)R3 Series

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EMC Specifications

EMI

CISPR22/EN55022, EN50121-3-2 CLASS A and CLASS B (see Fig. 2 for recommended circuit)

EMS

ESD

IEC/EN61000-4-2, EN50121-3-2 Contact ±6KV Air ±8KV

perf.Criteria B

IEC/EN61000-4-3, EN50121-3-2 20V/m

perf.Criteria A

EFT

IEC/EN61000-4-4, EN50121-3-2 ±2KV(see Fig. 2-1for recommended circuit)

perf.Criteria A

Surge

EN50121-3-2

differential mode ±1KV, 1.2/50us,

source impedance 42Ω(see Fig.2-1for recommended circuit)

perf.Criteria B

IEC/EN61000-4-6, EN50121-3-2 10 Vr.m.s

perf.Criteria A

Product Characteristic Curve

Sense of application and precautions

1. When not using remote sense

+Vo

sens e+

Trim

sens e-

The lead as s hort as po ss ible

Load

Short at pin root

Notes：

1) When not using remote sense, make sure + Vo and Sense + are shorted, and that 0V and Sense- are shorted as well;

2) Keep the tracks between + Vo and Sense +, 0V and Sense- as short as possible. and close to the terminal. Avoid a looping track. If noise

interferes the loop, the operation of the power module will become unstable.

DC/DC Converter

URF_QB-100W(F)R3 Series

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2. When Remote Sense is used

+Vo

sens e+

Trim

sens e-

A s far as pos sibl e u sin g t he twisted pair

Load

Notes:

1. Using remote sense with long wires may cause output voltage to become unstable. Consult us if long sensing wiring is necessary.

2. Sense tracks or wires should be as short as possible. If using wires, it should not use twisted-pair or shielded wires.

3. Please use wide PCB tracks or a thick wires between the power supply module and the load, the line voltage drop should be kept less

than 0.3V. Make sure the power supply module's output voltage remains within the specified range.

4. The impedance of wires may cause the output voltage oscillation or a greater ripple, please take adequate assessments before using.

Design Reference

1. Typical application

If not using Momsun’s recommended cicuit, please ensure an 220μF electrolytic capacitors in parallel with the input, which used to

suppress the surge voltage come from the iuput terminal.

All the DC/DC converters of this series are tested according to the recommended circuit (see Fig. 1) before delivery.

If it is required to further reduce input&output ripple, properly increase the input & output of additional capacitors Cin and Cout or select

capacitors of low equivalent impedance,provided that the capacitance is no larger than the max. capacitive load of the product.

DC DC

Vin

G ND

+ Vo

Cin Cout

Fuse

Fig.1

Vout(VDC)

Fuse

Cin

Cout

10A，

slow blow

220µF

470µF

12/15

220µF

100µF

2. EMC solution-module recommended circuit

Vin

GND

CY2

CY 4

LOAD

C5 L 2

Vin

GND

DC/DC

+Vo

C2 C3 C4 C6 C7 C8

CY 3

CY1

Fig. 2

CLASSA device number

CLASS B device number

Device parameter

Device function

150μF electrolytic

caoacitor

Meet puise group

and surge

47μF electrolytic caoacitor

150μF electrolytic

caoacitor

Meet conducted

emission and

radiated emission

47μF electrolytic caoacitor

C2、C3、C4、C5、C6、C7、C8

2.2μF ceramic caoacitor

1.0mH common mode

inductor

1.5μH inductance

CY3

CY1、CY2、CY3、CY4

1nF Y1safety caoacitor

DC/DC Converter

URF_QB-100W(F)R3 Series

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3. Application of Trim and calculation of Trim resistance

Vref

Trim

Vo’

Vref

Trim

Vo’

Trim up Trim down

Applied circuits of Trim (Part in broken line is the interior of

models)

Calculation formula of Trim resistance:

up: a= Vref

Vo’-Vref R1

R =TaR2

R -a2-R3

down: a= Vref

Vo’-Vref R2

R =TaR1

R -a1-R3

RTis Trim resistance ,a is a self-defined parameter, with no real

meaning. Vo’ for the actual needs of the up or down regulated

voltage

When the Trim function with down regulated is used, If the RT resistor is too low or “Trim” is short with “+Vo”,

the output voltage Vo’ would be lower than 0.9Vo, which may cause the product to be irreversibly damaged.

Vout(VDC)

R1(KΩ)

R2(KΩ)

R3(KΩ)

Vref(V)

3.036

2.5

11.00

2.87

2.5

14.03

2.8

2.5

24.872

2.87

2.5

53.017

2.913

2.5

4. It is not allowed to connect modules output in parallel to enlarge the power

5. For more information please find the application notes on www.mornsun-power.com

Dimensions and Recommended Layout (URF48xxQB-100WR3)

DC/DC Converter

URF_QB-100W(F)R3 Series

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Dimensions and Recommended Layout(URF48xxQB-100WFR3)

Note:

1. Packing Information please refer to 'Product Packing Information'. Packing bag number: 58010113（URF48xxQB-100WR3），58200069

（URF48xxQB-100WFR3）；

2. The maximum capacitive load offered were tested at input voltage range and full load;

3. Unless otherwise specified, data in this datasheet should be tested under the conditions of Ta=25℃, humidity<75%RH when inputting

nominal voltage and outputting rated load;

4. All index testing methods in this datasheet are based on our Company’s corporate standards;

5. We can provide product customization service and match filter module;

6. Specifications of this product are subject to chang es without prior notice.

Mornsun Guangzhou Science & Technology Co., Ltd.

Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Luogang District, Guangzhou, P. R. China

Tel: 86-20-38601850-8801 Fax: 86-20-38601272 E-mail: info@mornsun.cn