Page 1
GE Energy
CAR2548TN series rectifier
Input: 90Vac to 264Vac; Output: -54Vdc @ 2500W; 3.3Vdc or 5 Vdc @ 1A
Features
Universal input with PFC
Constant power characteristic
3 front panel LEDs: 1-input;2-output; 3 - fault
Remote ON/OFF control of the -54Vdc output
Remote sense (up to 0.5V) on the -54Vdc output
No minimum load requirements
Redundant parallel operation
Active load sharing (single wire)
Hot Plug-ability
Applications
-48Vdc distributed power architectures
Cellular Base Stations
Satellite Hubs
Network Equipment
Network Attached Storage
Telecom Access Nodes
Routers/Switches
Broadband Switches
Efficiency: typically 92%
Standby orderable either as 3.3Vdc or 5Vdc
Auto recoverable OC & OT protection
Operating temperature: -10 - 70C (de-rated above
50C)
Digital status & control: I
EN/IEC/UL60950-1 2
EMI: class B FCC docket 20780 part 15, EN55022
Meets EN6100 immunity and transient standards
Shock & vibration: NEBS GR-63-CORE, level 3
Data Sheet
2
C and PMBus serial bus
nd
edition; UL, CSA and VDE
ATE Equipment
Description
The CAR2548TN series of Front-End rectifiers provide highly efficient isolated power from worldwide input mains in a
compact 1U industry standard form factor in an unprecedented power density of 27W/in
complement the CAR2548 product line providing comprehensive solutions for systems connected either to
commercial ac mains, 48/60Vdc 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
2
future growth. The industry standard PMBus compliant I
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.
April 23, 2013 ©2012 General Electric Company. All rights reserved.
3
. These rectifiers
Page 2
GE Energy
CAR2548TN series rectifier
Input: 90Vac to 264Vac; Output: -54 Vdc @ 2500W; 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 Device Symbol Min Max Unit
Input Voltage: Continuous All VIN 0 264 Vac
Operating Ambient Temperature All TA -10 701 °C
Storage Temperature All Tstg -40 85 °C
I/O Isolation voltage (100% factory Hi-Pot tested) All 1500 Vdc
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, load, and temperature conditions.
INPUT
Parameter Device Symbol Min Typ Max Unit
Operational Range All VIN 90 110/230 264 Vac
F
Frequency Range (ETSI 300-132-1 recommendation) All
High Line Operation 180 – 264 Vac All
Low Line Operation 90 – 132 Vac All
Main Output Turn_OFF All
Maximum Input Current VIN= 90Vac
(VO= V
, IO=I
O, set
) VIN= 180Vac
O, max
Cold Start Inrush Current
(Excluding x-caps, 25C, <10ms, per ETSI 300-132)
Efficiency
(T
=25C, Vin= 230Vac, V
amb
= 54Vdc)
out
Power Factor
=230Vac, IO=I
(V
in
O, max
)
Holdup time
(V
= 230Vac, V
in
= -54Vdc, T
out
25C, IO=I
amb
O, max
)
All I
All I
All
All
All T 16.8 ms
Loss of Output Early Warning Signal
Ride through
Leakage Current
= 250Vac, Fin = 60Hz)
(V
in
All
All
IN
W
W
V
IN
IN
IN
PF 0.99
2 ms
T 8.3 ms
I
IN
Isolation Input/Output
Input/Frame 1500
All
Output/Frame 100
-54Vdc MAIN OUTPUT
Parameter Device Symbol Min Typ Max Unit
Output power All
Set point
Overall regulation (load, temperature, aging)
Ripple and noise2
Turn-ON overshoot
Turn-ON delay
All
All
All
All
All
P
out
V
out
T 2 sec
47 50/60 63 Hz
0 - 2500 W
0 - 1200 W
85 V
16
16
50 A
Aac
peak
ac
92 %
3 mArms
3000 V
ac
V
ac
Vdc
0 2500
-53.94 -54.00 -54.06 V
W
dc
dc
-2 +2 %
540
mV
p-p
+3 %
1
Derated above 50C at 2.5%/C
2
Measured across a 10µf electrolytic and a 0.1µf ceramic capacitors in parallel. 20MHz bandwidth
April 23, 2013 ©2012 General Electric Company. All rights reserved. Page 2
Page 3
GE Energy
CAR2548TN series rectifier
Input: 90Vac to 264Vac; Output: -54 Vdc @ 2500W; 3.3Vdc or 5 Vdc @ 1A
-54Vdc MAIN OUTPUT (continued)
Parameter Device Symbol Min Typ Max Unit
Remote ON/OFF delay time
Turn-ON rise time (10 – 90% of V
)
out
Transient response 50% step [10%-60%, 50% - 100%]
All
All
All
(dI/dt – 1A/µs, recovery 300µs)
Programmable range (hardware & software)
Overvoltage protection, latched
All
All
V
out
(recovery by cycling OFF/ON via hardware or software)
Output current V
= -54Vdc
out
Power limit 2500W
Current limit, Hiccup (programmable level)
Active current share
All
All
All
I
out
V
-42 -58 Vdc
out
I
out
I
out
AUXILIARY OUTPUT
Parameter Device Symbol Min Typ Max Unit
Set point All V
Overall regulation (load, temperature, aging) All V
Ripple and noise All 50 mVp-p
Output current All I
Overload protection -
Overvoltage protection
Isolation Output/GND All 100
Environmental, Reliability
Parameter Min Typ
Ambient Temperature
Operating
Altitude Operating
Power Derating
Storage
Altitude non-operating
Humidity Operating
Storage
Shock and Vibration acceleration 6 Grms NEBS GR-63-CORE, Level 3 20 -2000Hz, minimum 30 minutes
Earthquake Rating 4
MTBF
3
-10
-40
30
95
10
100,000
200,000
Max Units
50
2250
2.5
85
8200
95
°C
m
%/°C
°C m
%
Zone
Hrs
3.3 / 5.0 V
out
-5 +5 %
out
out
Air inlet from sea level to 5,000 feet.
7400 ft
51°C to 70C
30,000 ft
Relative humidity, non-condensing
NEBS GR-63-CORE, all floors, Seismic Zone 4 Designed and tested
to meet NEBS specifications.
Full load, 50C ambient, per Bellcore RPP
Demonstrated
40 ms
60 ms
-1350 +1350 mV
-45 -57 V
-58 -59 -60 V
0 46.3 A
dc
dc
dc
dc
106 126 % of FL
-5 +5 % of FL
dc
0 1 A
dc
V
dc
Notes
3
Designed to start at an ambient down to -40°C; meet spec after 30 min warm up period, may not meet operational limits below -10°C.
April 23, 2013 ©2012 General Electric Company. All rights reserved. Page 3
Page 4
GE Energy
CAR2548TN series rectifier
Input: 90Vac to 264Vac; Output: -54 Vdc @ 2500W; 3.3Vdc or 5 Vdc @ 1A
EMC
Parameter Criteria Standard Level Test
AC input Conducted emissions EN55022, FCC Docket 20780 part 15, subpart J A 0.15 – 30MHz
Radiated emissions** EN55022 A 30 – 10000MHz
Voltage dips EN61000-4-11 A -30%, 10ms
B -60%, 100ms
B -100%, 5sec
Voltage surge EN61000-4-5 A 4kV, 1.2/50µs, common mode
A 2kV, 1.2/50µs, differential mode
immunity Fast transients EN61000-4-4 B 5/50ns, 2kV (common mode)
Enclosure immunity Conducted RF fields EN61000-4-6 A 130dBµV, 0.15-80MHz, 80% AM
Radiated RF fields EN61000-4-3 A 10V/m, 80-1000MHz, 80% AM
ENV 50140 A
ESD EN61000-4-2 B 4kV contact, 8kV air
** Radiated emissions compliance is contingent upon the final system configuration.
Status and Control
Some parameters have two means of monitor/control; A
signal level that represents the analog value being
measured or controlled, or, reading/writing via the i
port the measured value or the control command.
Unless otherwise noted, control via the signals pins is
‘active’ so long that a firmware based command is not
initiated. Once firmware initiates a command that is also
represented on a signal pin, the firmware takes over and
replaces the hardware based control signal. Firmware
control is maintained until bias power to the processor is
interrupted. Once bias power is removed the processor
resets and the analog signal pin control is ‘active’ until
firmware takes over control.
Details of analog controls are provided in this data sheet
under Signal Definitions. GE Energy will provide separate
application notes on the I2C protocol. Contact your local
GE Energy representative for details.
2
C
Signal Definitions
All signals and outputs are referenced to Output return.
These include ‘Vstb return’ and ‘Signal return’.
Input Signals
Voltage programming (Vprog): An analog voltage on this
signal can vary the output voltage from -45Vdc to
-57Vdc. The equation of this signal is:
Vout = 44.3 + (Vprog * 3.33) where Vprog = 0.2 to
3.8Vdc
Load share (Ishare): This is a single wire analog signal
that is generated and acted upon automatically by power
supplies connected in parallel. The Ishare pins should be
tied together for power supplies if active current share
among the power supplies is desired. No resistors or
capacitors should get connected to this pin.
Remote ON/OFF: Controls the main -54Vdc output
voltage presence . This is an open collector, TTL level
control signal. This signal needs to be pulled HI
externally through a resistor. Maximum collector voltage
is 12Vdc and the maximum sink current is 1mA. A Logic
1 (TTL HI level) turns ON the -54Vdc output, while a
Logic 0 (TTL LO level) turns OFF the
-54Vdc output.
A turn OFF command either through this signal (Remote
ON/OFF) or firmware commanded would turn OFF the
12V output.
Enable: This is a short signal pin that controls the
presence of the -54Vdc . This pin should be connected to
‘output return’ on the system side of the output
connector. The purpose of this pin is to ensure that the
output turns ON after engagement of the power blades
and turns OFF prior to disengagement of the power
blades.
Write protect (WP): This signal protects the contents of
the EEPROM from accidental over writing. When left
open the EEPROM is write protected. A LO (TTL
compatible) permits writing to the EEPROM. This signal
is pulled HI internally by the power supply.
Output signals
Output current monitor (Imon): A voltage level
proportional to the delivered output current is present on
this pin. The signal level is 0.2V per amp ± 0.25V.
AC OK: A TTL compatible status signal representing
whether the input voltage is within the anticipated range.
This signal needs to be pulled HI externally through a
resistor. Maximum sink current ≤ 20mA and the max
April 23, 2013 ©2012 General Electric Company. All rights reserved. Page 4
Page 5
GE Energy
CAR2548TN series rectifier
Input: 90Vac to 264Vac; Output: -54 Vdc @ 2500W; 3.3Vdc or 5 Vdc @ 1A
voltage is 12Vdc. Open collector (HI) on this signal
indicates that the input voltage is applied within the
specified input range.
DC OK: A TTL compatible status signal representing
whether the output voltage is present . This signal needs
to be pulled HI externally through a resistor. Maximum
sink current ≤ 20mA and the max voltage is 12Vdc. Open
collector (HI) on this signal indicates that the output
voltage is present .
Over temp warning: A TTL compatible status signal
representing whether an over temperature exists . This
signal needs to be pulled HI externally through a resistor.
Maximum sink current
≤ 20mA and the max voltage is 12Vdc. Open collector
(HI) on this signal indicates that temperatures are normal
.
If an over temperature should occur, this signal would
pull LO for approximately 10 seconds prior to shutting
down the power supply. The unit would restart if internal
temperatures reduce within normal operational levels. At
that time the signal reverts back to its open collector (HI)
state.
Fault: A TTL compatible status signal representing
whether a Fault occurred . This signal needs to be pulled
HI externally through a resistor. Maximum sink current ≤
20mA and the max voltage is 12Vdc. Open collector (HI)
on this signal indicates that no Fault is present .
This signal activates for OTP, OVP, OCP, AC fault or No
output.
PS Present: This pin is connected to ‘output return’ within
the power supply. Its intent is to indicate to the system
that a power supply is present. This signal needs to be
pulled HI externally through a resistor.
Interrupt (SMBAlert): A TTL compatible status signal,
representing the SMBusAlert# feature of the PMBus
compatible i
signal needs to be pulled HI externally through a resistor.
Maximum sink current ≤ 20mA and the pull up resistor
should be tied to 3.3Vdc. Open collector (HI) on this
signal indicates that no Interrupt has been triggered .
2
C protocol in the power supply, . This
Serial Bus Communications
The I²C interface incorporated within the CAR2548TN
modules facilitates the monitoring and control of various
operating parameters within the unit and transmits these
on demand over an industry standard I²C Serial bus.
All signals are referenced to ‘Signal Return’.
Device addressing: The microcontroller (MCU) and the
EEPROM have the following addresses:
Device Address Address Bit Assignments
MCU 0xBx 1 0 1 1 A2 A1 A0 R/W
EEPROM 0xAx 1 0 1 0 A2 A1 A0 R/W
(Most to Least Significant)
Address lines (A2, A1, A0): These signal pins allow up to
eight (8) modules to be addressed on a single I²C bus.
The pins are pulled HI internal to the power supply. For a
logic LO these pins should be connected to ‘Output
Return’
Serial Clock (SCL): The clock pulses on this line are
generated by the host that initiates communications
across the I²C Serial bus. This signal is pulled up
internally to 3.3V by a 10kΩ resistor. The end user
should add additional pull up resistance as necessary to
ensure that rise and fall time timing and the maximum
sink current is in compliance to the I²C specifications.
Serial Data (SDA): This line is a bi-directional data line. .
This signal is pulled up internally to 3.3V by a 10kΩ
resistor. The end user should add additional pull up
resistance as necessary to ensure that rise and fall time
timing and the maximum sink current is in compliance to
the I²C specifications.
EEPROM
The microcontroller has 96 bytes of EEPROM memory
available for the system host.
Another separate EEPROM IC will provide another 128
bytes of memory with write protect feature. Minimum
information to be included in this separate EEPROM:
model number, revision, date code, serial number etc.
See the communications protocol for further information.
Communications Protocol
The I²C protocol is described in detail by the I2C and
PMBus Serial Communications Protocol for the CAR
Family of Power Supplies application note.
The following PMBus protocol commands are not
supported:
FAN_COMMAND_1 0 x 21
STATUS_FAN_1_2 0 x 81
READ_VIN 0 x 88
READ_IIN 0 x 89
READ_FAN_SPEED_1 0 x 90
READ_FAN_SPEED_2 0 x 91
READ_PIN 0 x A3
LEDs
Three LEDs are located on the front faceplate. The
AC_OK LED provides visual indication of the INPUT
signal function. When the LED is ON GREEN the power
supply input is within normal design limits.
When the DC_OK LED is GREEN the DC output is
present.
When the FAULT_LED is RED then a fault condition
exists and the power supply may not provide output
power. The table below further defines these states:
April 23, 2013 ©2012 General Electric Company. All rights reserved. Page 5
Page 6
GE Energy
Preliminary Data Sheet
CAR0812DC series dc-dc converter
Input: -36Vdc to -75Vdc; Output: +12 Vdc @ 850W; 3.3Vdc or 5 Vdc @ 1A
Alarm Table
LED Indicator Monitoring Signals
Test Condition
1 Normal Operation
2 Low or NO INPUT OFF OFF
3 OVP
4 Over Current
5 Over Temp Alarm
6 Over Temp Fault
Note: Test condition #2 has 2 modules working in parallel. One module is running and the other has no AC.
Outline Drawing
AC OK DC OK FAULT FAULT DC OK INPUT OK TEMP OK
Green Green
Green
Green
Green Green
Green
OFF
OFF
OFF
OFF High High High High
Red
Red
Red
Red
Red
Low Low Low High
Low Low High High
Low Low High High
Low High High Low
Low Low High Low
12 April 2012 ©2012 General Electric Company. All rights reserved. Page 6
Page 7
GE Energy
CAR2548TN series rectifier
Input: 90Vac to 264Vac; Output: -54 Vdc @ 2500W; 3.3Vdc or 5 Vdc @ 1A
Connector Pin Assignments
Mating Connector: FCI Berg P/N: 51939-030
Mating connector: FCI Berg P/N: 51939-015
Pin Function Pin Function Pin Function Pin Function
A1 Vstb [3.3V] B1 Fault C1 ISHARE D1 VProg
A2 Vstb [3.3V] Return B2 I Monitor (IMON) C2 N/C D2 OVP Test Point
A3 Signal Return B3 PS Present C3 Over Temp Warning D3 Remote ON/OFF
A4 Write Protect (WP) B4 Enable: “0” –ON “1” -OFF C4 I2C Address (A0) D4 DC OK
A5 Remote Sense (+) B5 SDA (I2C bus) C5 I2C Address (A1) D5 AC OK
A6 Remote Sense (-) B6 SCL (I2C bus) C6 I2C Address (A2) D6 SMBAlert
P1 Line P2 Neutral P3 Chassis
P4 -48Vdc P5 -48Vdc P6 Output Return P7 Output Return
Ordering Information
Please contact your GE Energy Sales Representative for pricing, availability and optional features.
PRODUCT DESCRIPTION PART NUMBER
2500W rectifier -48Vout rectifier w/Bezel, 3.3Vaux CAR2548TNB-1A
10KW SHELF Shelf for CAR2548TN holds 4 units ACE254RUW-1A
Contact Us
For more information, call us at
USA/Canada:
+1 888 546 3243, or +1 972 244 9288
Asia-Pacific:
+86.021.54279977*808
Europe, Middle-East and Africa:
+49.89.878067-280
India:
+91.80.28411633
12 April 2012 ©2012 General Electric Company. All rights reserved. Version 1.2
www.ge.com/powerelectronics
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