D1U-W-1200-12-HC Series
AC/DC Front End Power Supply
D1U-1200-12-HC.1 Page 1 of 4
www.cd4power.com
FEATURES
n1200W (220Vac), 900W (110Vac)
Output power
n12V Main output,
3.3V or 5V standby output
n1U sized; dimensions 12” x 4.75” x 1.6”
n13.2 Watts per cubic inch density
nN+1 redundancy capable,
including hot-docking
nActive current sharing on main output
nOver-voltage, over-current,
over-temperature protection
nInternal cooling fans
nI²C Bus Interface with status indicators
nOptional 1U x 19” power-shelf
DESCRIPTION
The D1U-W-1200 is a 1200 Watt, power-
factor-corrected (PFC) front-end power supply
for hot-swapping redundant systems. The
main output is 12V and standby output of
either 5V or 3.3V. Packaged in 1U low profile,
it is designed to deliver reliable bulk power to
servers, workstations, storage systems or any
12V distributed power architecture systems
requiring high power density. The highly efficient
electrical and thermal design with internal cooling
fans supports reliable operation conditions. The
D1U-W-1200 is designed to auto-recover from
over-current and over-temperature faults. Status
information is provided with front panel LEDs,
logic signals and I2C management interface. Three
units can be packaged into an optional 19” 1U
power shelf to provide up to 3.6kW of power.
OUTPUT VOLTAGE CHARACTERISTICS
Output
Voltage Parameter Conditions MIN. TYP. MAX. Units
12V
Voltage Set Point Accuracy 12.12 Vdc
Line and Load Regulation 11.75 12.48
Ripple Voltage & Noise 20MHz Bandwidth 120 mV p-p
Output Current 0 98.3 A
3.3Vsb
Voltage Set Point Accuracy 3.3 Vdc
Line and Load Regulation 3.2 3.4
Ripple Voltage & Noise 33 mV p-p
Operating Range 0 6 A
5Vsb
Voltage Set Point Accuracy 5 Vdc
Line and Load Regulation 4.85 5.15
Ripple Voltage & Noise 50 mV p-p
Operating Range 0 4 A
SELECTION GUIDE
Model Number Power Output
High Line AC
Power Output
Low Line AC Main Output Standby
Output Airflow
D1U-W-1200-12-HC2 1200W 900W 12V 3.3V Back to front
D1U-W-1200-12-HA2 1200W 900W 12V 5V Back to front
OUTPUT CHARACTERISTICS
Parameter Conditions MIN. TYP. MAX. Units
Remote Sense 120 mV
Efficiency 220Vac 90.6 %
Start-up Time AC ramp up 1.5 s
PS_On activated 150 ms
Transient Response 12V Ramp 1A/ms ±600
mV3.3Vsb Ramp 1A/ms ±165
5Vsb Ramp 1A/ms ±250
Current sharing accuracy (up to 3 in
parallel) At 100% load ±10 %
Hold-up Time 20 ms
INPUT CHARACTERISTICS
Parameter Conditions MIN. TYP. MAX. Units
Input Voltage Operating Range 90 264 Vac
Input Frequency 47 55 63 Hz
Turn-on Input Voltage Ramp up 78.5 86.5 Vac
Turn-off Input Voltage Ramp down 70.5 78
Maximum Input Current 12 Arms
Inrush Current 90 Apk
D1U-W-1200-12-HC Series
AC/DC Front End Power Supply
D1U-1200-12-HC.1 Page 2 of 4
www.cd4power.com
PROTECTION CHARACTERISTICS
Output
Voltage Parameter Conditions MIN. TYP. MAX. Units
Over-temperature Auto-restart 55 65 °C
12V Over Voltage Latching 13 14 V
Over Current Latching 107 122 A
3.3Vsb Over Voltage Latching 3.57 4.02 V
Over Current Latching 6.5 8 A
5Vsb Over Voltage Latching 5.6 6 V
Over Current Latching 5 7 A
GENERAL CHARACTERISTICS
Parameter Conditions MIN. TYP. MAX. Units
Storage Temperature Range Non-condensing -40 125 °C
Operating Temperature Range 0 50
Operating Humidity Non-condensing 10 90 %
Storage Humidity 5 90
Shock 30G non operating
Sinusoidal Vibration 0.5G, 5 – 500 Hz
MTBF Calculated per Bellcore at Ta=30°C 200 Khrs
Demonstrated 200 Khrs
Safety Approvals c-CSA-us (CSA 60950-1-03/UL 60950-1, First Edition)
ISOLATION CHARACTERISTICS
Parameter Conditions MIN. TYP. MAX. Units
Insulation Safety Rating / Test Voltage Input to Output - Reinforced 3000 Vrms
Input to Chassis - Basic 1500 Vrms
Isolation Output to Chassis
Output to Output
Material Flammability UL 94V-0
CONTROL SIGNALS
Status Conditions Description
LED
Off No AC input to all PS
Flashing Yellow Power Supply Failure
Flashing Green Main Output Absent
Green Power Supply Good
I2C Registers
Status PS-ON, PGOOD, ACOK, PS_BAD, FANFAIL, OT Warning &
shutdown, AC Range
Output Fault 12V OV, 12V UV, 12V OC, Vsb Fail, Fan1 Fail, Fan2 Fail
12V Output 8 bit scaled output voltage
12V 8 bit scaled output current
Fan1 Monitor 8 bit scaled output current
Fan2 Monitor 8 bit scaled output current
D1U-W-1200-12-HC Series
AC/DC Front End Power Supply
D1U-1200-12-HC.1 Page 3 of 4
www.cd4power.com
OUTPUT CONNECTOR AND SIGNAL SPECIFICATION
DC and Signal Connector: Tyco Part # 1-6450132-2, or FCI PowerBlade # 51732-021
Pin Assignment Signal Name Description High Level
Low Level I Max
P1, P2, P7, P8 VOUT Main output voltage
P3, P4, P5, P6 VRTN Main output voltage, return
A1 Sense + VOUT remote sense, positive node input
A2 Sense - VOUT remote sense, negative node input
C5, C6, D5, D6 V_SB Standby voltage output
C3, C4, D3, D4 V_SB Return Standby voltage, return
B1 I_Share Active load sharing bus 0 – 8V -4 mA / +5 mA
D1 AC_OK Input AC Voltage “OK” signal output(Internal 3K3 ohm
pull-up to Vsb)
>2.4V (active, OK)
<0.4V -2 mA +4 mA
D2 P_Good Power good signal output(Internal 3K3 ohm pull-up to Vsb) >2.4V (active, Good)
<0.4V -2 mA +4 mA
B5 PS_Kill Floating pin will turn off P/S. Vsb 0.5 mA
B6 PS_Present Internally tied to Vsb return 0 V
A6 PS_On Internal 1K ohm pull-up to Vsb, (accepts open collector/
drain drive)
>2.1V (open, or Vsb)
<0.7V (active, PS:On) -1 mA -4 mA
A3 I2C Data I2C serial data bus Vsb
A4 I2C Clock I2C serial clock bus Vsb
B2 I2C Adr0 Address input 0, internal pull-up to Vsb >2.1V, < Vsb <0.8V ±1 mA
B3 I2C Adr1 Address input 1, internal pull-up to Vsb >2.1V, <Vsb <0.8V ±1 mA
B4 I2C Adr2 Address input 2, internal pull-up to Vsb >2.1V, <Vsb <0.8V ±1 mA
EMISSIONS AND IMMUNITY
Characteristic Description Criteria
Harmonics IEC/EN 61000-3-2
Voltage Fluctuation and Flicker IEC/EN 61000-3-3
Emission Conducted FCC 47 CFR Parts 15/CISPR 22/EN55022 Class A, 6dB margin
Emission Radiated FCC 47 CFR Parts 15/CISPR 22/EN55022 Class A, 6dB margin
ESD IEC/EN 61000-4-2
4kV contact discharge
8kV operational air discharge
15kV non-operational air discharge
Electromagnetic Field IEC/EN 61000-4-3
Electrical Fast Transients/Burst IEC/EN 61000-4-4
Surge IEC/EN 61000-4-5 1kV/2kV, Performance Crteria B
RF Conducted Immunity IEC/EN 61000-4-6 3 Vac, 80% AM, 1kHz, Performance Criteria A
Magnetic Immunity IEC/EN 61000-4-8 3 A/m
Voltage dips, interruptions IEC/EN 61000-4-11
P1 P2 P3 P4 P5 P6 P7 P8 x1 x2 x3 x4 x5 x6
VOUT VOUT VRTN VRTN VRTN VRTN VOUT VOUT
AC_OK P_GOOD V_SB
RETURN
V_SB
RETURN
V_SB
+OUT
V_SB
+OUT D
SPARE SPARE V_SB
RETURN
V_SB
RETURN
V_SB
+OUT
V_SB
+OUT C
I_SHARE I2C ADR0 I2C ADR1 I2C ADR2 PS_KILL PS_
PRESENT B
SENSE + SENSE - I2C DATA I2C
CLOCK SPARE PS_ON A
mate-last pins
D1U-W-1200-12-HC Series
AC/DC Front End Power Supply
D1U-1200-12-HC.1 Page 4 of 4
www.cd4power.com
C&D Technologies, Inc reserve the right to alter or improve the specification, internal design or manufacturing process
at any time, without notice. Please check with your supplier or visit our web site to ensure that you have the current and
complete specification for your product before use.
© C&D Technologies, Inc 2006 CPS_D1U-1200-12-HC.1
No part of this publication may be copied, transmitted or stored in a retrieval system or reproduced in any way including,
but not limited to, photography, photocopy, magnetic or other recording means, without prior written permission from C&D
Technologies, Inc. Instructions for use are available from www.cd4power.com
C&D Technologies, Inc.
4118 14th Avenue, Unit 4
Markham, Ontario L3R 0J3, Canada
Tel: +1 905 944 2850
Fax +1 905 944 2851
email: toronto@cdtechno.com
MECHANICAL DIMENSIONS
AC Input Connector: The AC input connector is standard IEC320 C14 (15A).
Dimensions: 12.00”L x 4.75” W x 1.6” H (40.7H x 120.6W x 304.90mm)
C&D Technologies, Inc.
11 Cabot Boulevard, Mansfield,
MA 02048-1151, USA
Tel: +1 (508) 339-3000
Fax: +1 (800) 233-2765
email: sales@cdtechno.com
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