GE
CAR1212DC series DC-DC converter
RoHS Compliant
Data Sheet
Input: -36V
D C
to -75V
DC
; Output: 12V
DC
@ 1200W; 3.3V
DC
or 5 V
DC
@ 1A
Features
•
•
•
•
•
•
•
•
•
Input Or’ing
Reverse input protection
3 front panel LEDs: 1-input;2-output; 3 - fault
Output programmable from 10.8 – 13.2V
DC
Remote ON/OFF control of the 12V
DC
output
Remote sense (up to 0.25V) on the 12V
DC
output
No minimum load requirements
Redundant parallel operation
Active load sharing (single wire)
Hot pluggable
Efficiency: typically 90%
Standby orderable either as 3.3V
DC
or 5V
DC
Auto recoverable OC & OT protection
Operating temperature: -10 - 70°C (de-rated above 50°C)
Digital status & control: I
2
C and PMBus serial bus
EN/IEC/UL60950-1 2
nd
edition; UL 1950, CSA C22.2-950
CE mark
EMI: class A FCC docket 20780 part 15, EN55022
Meets EN6100 immunity and transient standards
Shock & vibration: NEBS GR-63-CORE, level 3
Applications
•
•
•
•
•
•
•
•
•
48V
DC
distributed power architectures
Cellular Base Stations
Satellite Hubs
Network Equipment
Network Attached Storage
Telecom Access Nodes
Routers/Switches
Broadband Switches
ATE Equipment
•
•
•
•
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Description
The CAR1212DC series of DC-DC Converters provide highly efficient isolated power from DC input mains in a
compact 1U industry standard form factor at a power density of 16.2W/in
3
. These converters complement the
CAR1212FP rectifier providing comprehensive solutions for systems connected either to commercial AC mains,
48/60V
DC
power plants or telecom central offices. This plug and play approach offers significant advantages since
systems can be reconfigured and repositioned readily 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 buss 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.
§ This product is intended for integration into end-user equipment. All
CE
marking procedures 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
+
The
PMBus
name and logo are registered trademarks of the System Management Interface Forum (SMIF)
October 21, 2013
©2013 General Electric Company. All rights reserved.
GE
CAR1212DC series DC-DC converter
Absolute Maximum Ratings
Input: -36V
D C
to -75V
DC
; Output: 12V
DC
@ 1200W; 3.3V
DC
or 5 V
DC
@ 1A
Data Sheet
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
Tstg
Min
0
-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
output turned ON
Idling Power
Maximum Input Current
(V
OUT
= V
O, set
, I
OUT
=I
O, max
)
Cold Start Inrush Current
(Excluding x-caps, 25°C, <10ms, per ETSI 300-132)
Efficiency
(T
amb
=25°C, V
IN
= -48V
DC
, V
OUT
= 12V
DC
, 60-80% load)
Holdup time (V
IN
= -48V
DC
, V
OUT
≥ 10.8Vdc,
T
AMB
25°C, I
OUT
=I
O, max
)
Isolation
Input/Output
Input/Frame
Output/Frame
12V
DC
output OFF
12V
DC
output ON
V
IN
= -36V
DC
W
I
IN
I
IN
η
T
1500
1500
100
90
2.5
V
IN
Symbol
Min
-36
Typ
-48/60
Max
-75
-35
-36
35
45
38
40
Unit
V
DC
W
A
DC
A
PEAK
%
ms
V
DC
V
DC
V
DC
12V
DC
MAIN OUTPUT
Parameter
Output power
Set point
Overall regulation (load, temperature)
Remote sense
Ripple and noise
2
Symbol
@ 50% load
sum of hot & return
P
OUT
V
OUT
Min
0
11.9
-2
Typ
12.00
Max
1200
12.1
+2
0.25
Unit
W
V
DC
%
V
DC
mV
p-p
120
1
2
Derated above 50°C at 2.5%/°C
Measured across a 10µf tantalum and a 0.1µf ceramic capacitors in parallel. 20MHz bandwidth
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 2
GE
CAR1212DC series DC-DC converter
Input: -36V
D C
to -75V
DC
; Output: 12V
DC
@ 1200W; 3.3V
DC
or 5 V
DC
@ 1A
Data Sheet
12V
DC
MAIN OUTPUT (continued)
Parameter
Turn-ON overshoot
Turn-ON delay
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 300µs)
Programmable range (hardware
3
& software)
Overvoltage protection, latched
(recovery by cycling OFF/ON via hardware or software)
Output current
Current limit, Hiccup
Short circuit protection with auto recovery
Active current share
V
OUT
= 12V
DC
I
OUT
I
OUT
I
OUT
V
OUT
-5
10.8
14.5
0
110
-5
Symbol
V
OUT
T
Min
Typ
Max
3
2
40
60
+5
13.2
15.5
100
130
+5
Unit
%
sec
ms
ms
%
V
DC
V
DC
A
DC
A
DC
% of FL
3.3V
DC
(5V
DC
) STANDBY OUTPUT
Parameter
Set point (optional 5Vstb)
Overall regulation (load, temperature, aging)
Ripple and noise
Output current
I
OUT
0
Symbol
V
OUT
V
OUT
Min
3.2
-5
Typ
3.3
50
Max
3.4
+5
66
4
1
Unit
V
DC
%
mVp-p
A
DC
General Specifications
Parameter
Reliability,
Service Life
Weight
25C, full load
Min
Typ
250,000
10
1.45 (3.2)
Max
Units
Hrs
Yrs
Kgs (Lbs)
Notes
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 HI internally within the module
≈
40kΩ to 5V
DC
)
Logic High (Module ON) – either N/C or apply V > 3V
DC
Logic Low (Module OFF)
I
IH
V
IH
I
IL
V
IL
0.7V
DD
0
20
12
1
0.8
µA
V
DC
mA
V
DC
Symbol
Min
Typ
Max
Unit
3
Setpoint
can be voltage programmable or programmed by a resistor divider. An internal 20kΩ from V
prog
to 3.3V
dc
is provided. Add a resistor to
complete the divider from V
prog
to output_return.
Measured at the output with 0.1µf ceramic and a 10µf tantalum capacitor in parallel. 20mHz bandwidth limitation.
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 3
4
GE
CAR1212DC 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
(Pulled up internally to 3.3V via a 10kΩ resistor)
Logic High (Input within normal range)
Logic Low (Input out of range)
DC-OK
(Pulled up internally to 3.3V via a 10kΩ resistor)
Logic High (Output voltage is present)
Logic Low (Output voltage is not present)
Temperature OK
(Pulled up internally to 3.3V via a 10kΩ resistor)
Logic High (temperature within normal range)
Logic Low (temperature is too high)
Delayed shutdown after Logic Low transition
Fault
(Pulled up internally to 3.3V via a 10kΩ resistor)
Logic High (No fault is present)
Logic Low (Fault is present)
PS Present
Logic High (Power supply is not plugged in)
Logic Low (Power supply is present)
V
IL
0
I
OH
V
OH
I
OL
V
OL
0.7V
DD
0
I
OH
V
OH
I
OL
V
OL
Tdelay
0.7V
DD
0
10
I
OH
V
OH
I
OL
V
OL
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
Vo
Vo
V
prog
V
prog
0
10.8
2.5
3.0
Symbol
Min
Data Sheet
Input: -36V
D C
to -75V
DC
; Output: 12V
DC
@ 1200W; 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
20
0.4
20
12
20
0.4
20
12
20
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
20
0.4
µA
V
DC
mA
V
DC
0.1
V
DC
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 4
GE
CAR1212DC series DC-DC converter
Feature Specifications (continued)
Parameter
SMBAlert# (Interrupt) (Pulled
up internally to 3.3V via a 10kΩ resistor)
Logic High (No Alert - normal)
Logic Low (Alert is set)
Output current monitor (Imon)
Resolution
Accuracy
Measurement range
Analog output range
Sourced output current
I
o
V
mon
I
o
-250
0
0
I
OH
V
OH
I
OL
V
OL
0.7V
DD
0
Symbol
Min
Data Sheet
Input: -36V
D C
to -75V
DC
; Output: 12V
DC
@ 1200W; 3.3V
DC
or 5 V
DC
@ 1A
Typ
100
Max
20
12
20
0.4
Unit
µA
V
DC
mA
V
DC
mV/A
+250
100
10
5
mV
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
Measurement System Characteristics
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
5
Linear
Linear
Linear
t
STRETCH
I
RNG
I
ACC
V
OUT(rng)
V
OUT(acc)
Temp
(rng)
Temp
(acc)
0
-10
0
-5
0
-5
25
100
+10
14
+5
120
+5
ms
A
DC
%
V
DC
%
°C
%
V
OUT
=3.6V
Slave Mode
I
OUT
=3.5mA
V
IH
V
IL
I
IH
V
OL
I
OL
I
OH
F
PMB
3.5
0
10
10
400
2.1
0
0
3.6
0.8
10
0.4
V
DC
V
DC
μA
V
DC
mA
μA
kHz
Conditions
Symbol
Min
Typ
Max
Unit
5
Temperature accuracy reduces non-linearly with decreasing temperature
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 5
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