GE
CAR0812DC Series DC-DC Converter
Data Sheet
Input: -36V
DC
to -75V
DC
; Output: +12 V
DC
@ 850W; 3.3V
DC
or 5 V
DC
@ 1A
Features
RoHS Compliant
Reverse input voltage protection
2 front panel LEDs: LED 1-input,
LED2-[output, fault, over temp]
Remote ON/OFF control of the 12V
DC
output
12Vdc Regulation: set point ±0.2%, overall ±3%
12Vdc programmable between 10.8 – 13.2V
DC
Active load sharing on the 12V output
Firmware adjustable overload set point of 12V output
Standby orderable either as 3.3V
DC
or 5V
DC
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
2
C and PMBus
+
serial bus
EN/IEC/UL60950-1 2
nd
edition; UL
*
, CSA
†
and VDE
‡
CE
§
mark meets 2006/95/EC directive
EMI: class B FCC docket 20780 part 15, EN55022
Meets EN6100 immunity and transient standards
Applications
•
•
•
•
•
•
•
12V
DC
distributed power architectures
Mid-End Servers
Blade Servers
Storage Area Networks
Routers/Switches
Enterprise Networks
Advanced workstations
Description
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
2
C communications bus offers a full range of control and monitoring
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)
April 23, 2013
©2013 General Electric Company. All rights reserved.
GE
CAR0812DC Series DC-DC Converter
Input: -36V
DC
to -75V
DC
; Output: +12 V
DC
@ 850W; 3.3V
DC
or 5 V
DC
@ 1A
Data Sheet
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
Input Voltage: Continuous
Operating Ambient Temperature
Storage Temperature
I/O Isolation voltage (100% factory Hi-Pot tested)
Symbol
V
IN
T
A
T
stg
Min
+0.3
-10
-40
Max
-75
70
1
85
1500
Unit
V
DC
°C
°C
V
DC
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, load, and temperature conditions.
INPUT
Parameter
Operational Range
12V
DC
output turned OFF
12V
DC
turned ON
Maximum Input Current
(V
IN
= -36V
DC
, V
OUT
= V
O, set
, I
OUT
=I
O, max
)
Cold Start Inrush Current
(Excluding x-caps, 25C, <10ms, per ETSI 300-132)
Efficiency (T
AMB
=25C, V
IN
=-48V
DC
, V
OUT
=12V
DC
)
10% load
20% load
50% load
100% load
Holdup time – 12V
DC
(Tamb 25C, V
IN
-48V
DC
, C
ext
5,000µf)
Isolation T
AMB
=25C, V
IN
=-48V
DC
, V
OUT
=12V
DC
- Input/Output
Input/Frame
1 minute per IEC/EN 60950-1) Output/Frame
Ground lug
Symbol
V
IN
V
IN
V
IN
I
IN
I
IN
80
88
92
89
2
2
%
Min
-36
-32
-33
Typ
-48/60
-33
-35
Max
-75
-35
-36
27.1
40
Unit
V
DC
V
DC
V
DC
A
DC
A
peak
T
ms
1500
V
DC
1500
100
Connection required to meet EMI performance
12V
dc
MAIN OUTPUT
Parameter
Output power
Set point
Overall regulation (load, temperature, aging)
Ripple and noise
3
Turn-ON overshoot
Turn-ON delay
Symbol
P
OUT
V
OUT
T
Min
0
11.98
-3
Typ
12.00
Max
850
12.02
+3
120
+3
2
Unit
W
DC
V
DC
%
mV
p-p
%
sec
1
Derated above 50C at 2.5%/C
2
3
Full load, with 5,000µf external capacitance, 12Vdc set point, droop to 10.8Vdc permitted, > -48Vdc input
Measured across a 10µf tantalum and a 0.1µf ceramic capacitors in parallel. For V
in
> 60V
dc
the PARD is relaxed to 150mV
p-p
.
April 23, 2013
©2013 General Electric Company. All rights reserved.
Page 2
GE
CAR0812DC Series DC-DC Converter
12V
dc
MAIN OUTPUT (continued)
Parameter
Remote ON/OFF delay time
Turn-ON rise time (10 – 90% of V
out
)
Transient response 50% step [10%-60%, 50% - 100%]
(di/dt – 1A/µs, recovery 500µs)
Programmable range (hardware & software)
Overvoltage protection, latched
(recovery by cycling OFF/ON via hardware or software)
Output current
Current limit, Hiccup (programmable level)
Active current share
External Capacitance
Symbol
Min
Data Sheet
Input: -36V
DC
to -75V
DC
; Output: +12 V
DC
@ 850W; 3.3V
DC
or 5 V
DC
@ 1A
Typ
Max
40
50
Unit
ms
ms
mV
DC
V
DC
V
DC
A
DC
% of FL
% of FL
µf
-600
V
OUT
10.8
13.5
I
OUT
0
106
-5
+600
13.2
15.5
70.8
126
+5
16,000
STANDBY OUTPUT
Parameter
Set point
Overall regulation (load, temperature, aging)
Ripple and noise
Output current
Transient response: 50% load step (10% - 60%, 50% - 100%,
di/dt=1A/µs, recovery 500µs)
Overload protection
Isolation
Output/Frame
Symbol
V
STDBY
V
STDBY
I
STDBY
V
STDBY
I
STDBY
-5
0
-165
110
100
Min
Typ
3.3 / 5.0
+5
50
1
165
180
Max
Unit
V
DC
%
mV
p-p
A
DC
mV
% of FL
V
DC
General Specifications
Parameter
Reliability
Service Life
Weight
Min
Typ
400,000
10
1.09
(2.4)
Max
Units
Hrs
Yrs
Kgs
(Lbs)
Notes
Full load, 25C ; MTBF per SR232 Reliability
protection for electronic equipment, method I,
case III,
Full load, excluding fans
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.
Parameter
Remote ON/OFF (pulled up internally within the module)
Logic High (Module ON)
Logic Low (Module OFF)
I
IL
V
IL
0.7V
STDBY
0
V
STDBY
1
0.8
V
DC
mA
V
DC
Symbol
Min
Typ
Max
Unit
April 23, 2013
©2013 General Electric Company. All rights reserved.
Page 3
GE
CAR0812DC Series DC-DC Converter
Feature Specifications (continued)
Parameter
Output Voltage programming (Vprog)
Equation: V
OUT
= 10.8 + (Vprog * 0.96)
Vprog range
Programmed output voltage range
Voltage adjustment resolution (8-bit A/D)
Output configured to 13.2V
DC
Output configured to the 12V
DC
set-point
Enable [short pin controlling presence of the 12V
DC
output]
12V output OFF
12V output ON
Write protect (Wp)
Write protect enabled
Write protect disabled
INPUT-OK (Needs to be pulled HI via an external resistor)
Logic High (Input within normal range)
Logic Low (Input out of range)
DC-OK ( Internally connected to 3.3V via a 10kΩ resistor)
Logic High (Output voltage is present)
Logic Low (Output voltage is not present)
Over Temperature Warning (Needs to be pulled HI via an external
i t )
Logic High (temperature within normal range)
Logic Low (temperature is too high)
Delayed shutdown after Logic Low transition
Fault (Needs to be pulled HI via an external resistor)
Logic High (No fault is present)
Logic Low (Fault is present)
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)
I
OH
V
OH
I
OL
V
OL
0.7V
DD
0
I
OH
V
OH
I
OL
V
OL
I
OH
V
OH
I
OL
V
OL
Tdelay
0.7V
DD
0
10
0.7V
DD
0
V
I
V
I
I
OH
V
OH
I
OL
V
OL
0.7V
DD
0
0.7V
DD
0
V
I
V
I
0.7V
DD
0
V
prog
V
OUT
V
OUT
V
prog
V
prog
0
10.8
2.5
3.0
Symbol
Min
Data Sheet
Input: -36V
DC
to -75V
DC
; Output: +12 V
DC
@ 850W; 3.3V
DC
or 5 V
DC
@ 1A
Typ
Max
Unit
10
2.5
13.2
3.0
12
0.8
12
0.8
20
12
4
0.4
20
12
4
0.4
20
12
4
0.4
V
DC
V
DC
mV
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
µA
V
DC
mA
V
DC
µA
V
DC
mA
V
DC
µA
V
DC
mA
V
DC
sec
20
12
4
0.4
µA
V
DC
mA
V
DC
V
IL
0
0.1
V
DC
April 23, 2013
©2013 General Electric Company. All rights reserved.
Page 4
GE
CAR0812DC Series DC-DC Converter
Feature Specifications (continued)
Parameter
SMBAlert# (Interrupt) (Needs to be pulled HI via an external
i t )
Logic High (No Alert - normal)
Logic Low (Alert is set)
Output current monitor (Imon)
Resolution
Measurement range
Analog output range
Sourced output current
I
OUT
V
mon
I
OUT
0
0
40
Symbol
I
OH
V
OH
I
OL
V
OL
0.7V
DD
0
Min
Typ
Data Sheet
Input: -36V
DC
to -75V
DC
; Output: +12 V
DC
@ 850W; 3.3V
DC
or 5 V
DC
@ 1A
Max
20
12
4
0.4
Unit
µA
V
DC
mA
V
DC
mV/A
80
3
5
A
DC
V
DC
mA
DC
Digital Interface Specifications
Parameter
PMBus Signal Interface Characteristics
Input Logic High Voltage (CLK, DATA)
Input Logic Low Voltage (CLK, DATA)
Input high sourced current (CLK, DATA)
Output Low sink Voltage (CLK, DATA, SMBALERT#)
Output Low sink current (CLK, DATA, SMBALERT#)
Output High open drain leakage current
(CLK,DATA, SMBALERT#)
PMBus Operating frequency range
Clock stretching
I
OUT
measurement range
I
OUT
measurement accuracy 25°C
V
OUT
measurement range
V
OUT
measurement accuracy
Temp measurement range
Temp measurement accuracy
4
V
IN
measurement range
V
IN
measurement accuracy
Fan Speed measurement range
Fan Speed measurement accuracy
Fan speed control range
-direct-
Linear
Linear
Linear
Linear
Linear
I
OUT
=3.5mA
V
OUT
=3.6V
Slave Mode
V
IH
V
IL
I
IH
V
OL
I
OL
I
OH
F
PMB
t
STRETCH
I
RNG
I
ACC
V
OUT(rng)
V
OUT(acc)
Temp
(rng)
Temp
(acc)
V
IN(rng)
V
IN(acc)
0
-3
0
-3
0
-5
0
-3
0
-5
0
3.5
0
10
10
400
25
80
+3
14
+3
120
+5
80
+3
30k
5
100
2.1
0
0
3.6
0.8
10
0.4
V
DC
V
DC
μA
V
DC
mA
μA
kHz
ms
A
DC
% of FL
V
DC
%
C
C
V
DC
%
RPM
%
%
Conditions
Symbol
Min
Typ
Max
Unit
Measurement System Characteristics
(all measurement tolerances are typical estimations under normal operating conditions)
4
Temperature accuracy reduces non-linearly with decreasing temperature
April 23, 2013
©2013 General Electric Company. All rights reserved.
Page 5
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