Input: -36VDC to -75VDC; Output: +12 VDC @ 850W; 3.3VDC or 5 VDC @ 1A
Features
RoHS Compliant
Applications
•
12VDC distributed power architectures
• Mid-End Servers
• Blade Servers
• Storage Area Networks
• Routers/Switches
• Enterprise Networks
• Advanced workstations
Description
Reverse input voltage protection
2 front panel LEDs: LED 1-input,
LED2-[output, fault, over temp]
Remote ON/OFF control of the 12V
12Vdc Regulation: set point ±0.2%, overall ±3%
12Vdc programmable between 10.8 – 13.2V
Active load sharing on the 12V output
Firmware adjustable overload set point of 12V output
Standby orderable either as 3.3V
Efficiency: typically 92% @ 50% load
Exceeds 80plus GOLD standard
Auto recoverable protection
Hot insertion/removal (hot plug)
Operating temperature: -10 - 70C,
Digital status & control: I
EN/IEC/UL60950-1 2
§
mark meets 2006/95/EC directive
CE
EMI: class B FCC docket 20780 part 15, EN55022
Meets EN6100 immunity and transient standards
Data Sheet
output
DC
DC
or 5VDC
DC
2
C and PMBus+ serial bus
nd
edition; UL*, CSA† and VDE‡
The CAR0812DC series of converters provide highly efficient isolated power from 48/60Vdc -input systems. Offered in
the industry standard compact 1U form factor, these converters complement the CAR0812 rectifier line, providing
comprehensive solutions for systems connected either to commercial AC mains or 48/60Vdc power plants. This plug
and play approach, between AC and DC input units, has significant advantages since systems can be readily
reconfigured by simply replacing the power supply.
The high-density, front-to-back airflow is designed for minimal space utilization and is highly expandable for future
growth. The industry standard PMBus compliant I
capabilities. The SMBusAlert signal pin alerts customers automatically of any state change within the power supply.
* UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
§ Intended for integration into end-user equipment. All the required procedures for CE marking of end-user equipment should be followed. (The CE mark is placed on selected products.)
** ISO is a registered trademark of the International Organization of Standards.
+ PMBus name and logo are registered trademarks of the System Management Interface Forum (SMIF)
C communications bus offers a full range of control and monitoring
GE
Data Sheet
CAR0812DC Series DC-DC Converter
Input: -36VDC to -75VDC; Output: +12 VDC @ 850W; 3.3VDC or 5 VDC @ 1A
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings
only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations
sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.
Parameter Symbol Min Max Unit
Input Voltage: Continuous VIN +0.3 -75 VDC
Operating Ambient Temperature TA -10 701 °C
Storage Temperature T
I/O Isolation voltage (100% factory Hi-Pot tested) 1500 VDC
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, load, and temperature conditions.
INPUT
Parameter Symbol Min Typ Max Unit
Operational Range VIN -36 -48/60 -75 VDC
12VDC output turned OFF
12VDC turned ON
Maximum Input Current
(VIN= -36VDC, V
OUT
= V
O, set
, I
OUT=IO, max
)
Cold Start Inrush Current
(Excluding x-caps, 25C, <10ms, per ETSI 300-132)
Efficiency (T
=25C, VIN=-48VDC, V
AMB
=12VDC)
OUT
10% load
20% load 88
50% load 92
100% load 89
Holdup time – 12VDC(Tamb 25C, VIN -48VDC, C
Isolation T
=25C, VIN=-48VDC, V
AMB
=12VDC - Input/Output
OUT
5,000µf)
ext
Input/Frame 1500
1 minute per IEC/EN 60950-1) Output/Frame 100
Ground lug Connection required to meet EMI performance
V
IN
V
IN
I
IN
I
IN
T 2
-40 85 °C
stg
-32 -33 -35 V
-33 -35 -36 V
27.1 ADC
40 A
80
2
ms
1500
peak
%
V
DC
DC
DC
12Vdc MAIN OUTPUT
Parameter Symbol Min Typ Max Unit
Output power P
OUT
Set point
Overall regulation (load, temperature, aging) -3 +3 %
Ripple and noise3 120 mV
V
OUT
0 850 W
11.98 12.00 12.02 V
DC
DC
p-p
Turn-ON overshoot +3 %
Turn-ON delay T 2 sec
1
Derated above 50C at 2.5%/C
2
Full load, with 5,000µf external capacitance, 12Vdc set point, droop to 10.8Vdc permitted, > -48Vdc input
3
Measured across a 10µf tantalum and a 0.1µf ceramic capacitors in parallel. For Vin > 60Vdc the PARD is relaxed to 150mV
Programmable range (hardware & software) 10.8 13.2 V
V
OUT
Overvoltage protection, latched
(recovery by cycling OFF/ON via hardware or software)
Output current
Current limit, Hiccup (programmable level) 106 126 % of FL
I
OUT
Active current share -5 +5 % of FL
External Capacitance 16,000 µf
STANDBY OUTPUT
Parameter Symbol Min Typ Max Unit
Set point V
Overall regulation (load, temperature, aging) V
Ripple and noise 50 mV
Output current I
Transient response: 50% load step (10% - 60%, 50% - 100%,
di/dt=1A/µs, recovery 500µs)
Overload protection I
Isolation Output/Frame 100 V
3.3 / 5.0 V
STDBY
-5 +5 %
STDBY
STDBY
-165 165 mV
V
STDBY
110 180 % of FL
STDBY
40 ms
-600 +600 mV
13.5 15.5 V
0 70.8 A
0 1 A
DC
DC
DC
DC
DC
DC
p-p
DC
General Specifications
Parameter Min Typ Max Units Notes
Reliability 400,000
Hrs
Full load, 25C ; MTBF per SR232 Reliability
protection for electronic equipment, method I,
case III,
Service Life 10 Yrs Full load, excluding fans
Weight
1.09
(2.4)
Kgs
(Lbs)
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.
Parameter Symbol Min Typ Max Unit
Remote ON/OFF (pulled up internally within the module)
Logic High (Module ON)
Logic Low (Module OFF) I
Input: -36VDC to -75VDC; Output: +12 VDC @ 850W; 3.3VDC or 5 VDC @ 1A
Feature Specifications (continued)
Parameter Symbol Min Typ Max Unit
Output Voltage programming (Vprog)
Equation: V
Vprog range V
Programmed output voltage range V
Voltage adjustment resolution (8-bit A/D) V
Output configured to 13.2VDC V
Output configured to the 12VDC set-point V
Enable [short pin controlling presence of the 12VDC output]
12V output OFF VI
12V output ON VI
Write protect (Wp)
Write protect enabled VI
Write protect disabled VI
INPUT-OK (Needs to be pulled HI via an external resistor)
Logic High (Input within normal range) I
V
Logic Low (Input out of range) I
V
DC-OK ( Internally connected to 3.3V via a 10kΩ resistor)
Logic High (Output voltage is present) I
V
Logic Low (Output voltage is not present) I
V
Over Temperature Warning (Needs to be pulled HI via an external
Logic High (temperature within normal range) I
V
Logic Low (temperature is too high) I
V
Delayed shutdown after Logic Low transition Tdelay 10 sec
Fault (Needs to be pulled HI via an external resistor)
Logic High (No fault is present) I
V
Logic Low (Fault is present) I
V
PS Present (Needs to be pulled HI via an external resistor)
Logic High (Power supply is not plugged in)
Logic Low (Power supply is present) VIL 0
Input: -36VDC to -75VDC; Output: +12 VDC @ 850W; 3.3VDC or 5 VDC @ 1A
Feature Specifications (continued)
Parameter Symbol Min Typ Max Unit
SMBAlert# (Interrupt) (Needs to be pulled HI via an external
Logic High (No Alert - normal) I
V
Logic Low (Alert is set) I
V
Output current monitor (Imon)
Resolution
Measurement range I
Analog output range V
Sourced output current I
Digital Interface Specifications
Parameter Conditions Symbol Min Typ Max Unit
PMBus Signal Interface Characteristics
Input Logic High Voltage (CLK, DATA) VIH 2.1 3.6 VDC
Input Logic Low Voltage (CLK, DATA) VIL 0 0.8 VDC
Input high sourced current (CLK, DATA) IIH 0 10 μA
Output Low sink Voltage (CLK, DATA, SMBALERT#) I
Output Low sink current (CLK, DATA, SMBALERT#) IOL 3.5 mA
Output High open drain leakage current
(CLK,DATA, SMBALERT#)
PMBus Operating frequency range Slave Mode FPMB 10 400 kHz
Measurement System Characteristics (all measurement tolerances are typical estimations under normal operating conditions)
Clock stretching
I
measurement range
OUT
I
measurement accuracy 25°C
OUT
V
measurement range
OUT
V
measurement accuracy
OUT
Temp measurement range
Temp measurement accuracy4
VIN measurement range
VIN measurement accuracy
Fan Speed measurement range Linear 0 30k RPM
Fan Speed measurement accuracy -5 5 %
Fan speed control range -direct- 0 100 %
=3.5mA VOL 0.4 VDC
OUT
=3.6V I
V
OUT
Linear
Linear
Linear
Linear
OH
OH
OL
0
OL
0 80 ADC
OUT
0 3 VDC
mon
5 mADC
OUT
OH
0.7V
DD
40 mV/A
0 10 μA
20 µA
12 V
DC
4 mA
0.4 VDC
tSTRETCH 25 ms
I
RNG
I
ACC
V
OUT(rng)
V
OUT(acc)
Temp
Temp
V
IN(rng)
V
IN(acc)
(rng)
(acc)
0 80 A
DC
-3 +3 % of FL
0 14 VDC
-3 +3 %
0 120
-5 +5
C
C
0 80 VDC
-3 +3 %
4
Temperature accuracy reduces non-linearly with decreasing temperature