GE Industrial Solutions CAR2912TE User Manual
GE
October 21, 2013
©2013 General Electric Company. All rights reserved.
Input: 90Vac to 264Vac; Output: 12Vdc @ 2900W; 3.3 or 5Vdc @ 4A Standby
*
+ PMBus name and logo are registered trademarks of the System Management Interface Forum (SMIF)
CAR2912TE series front-end
Preliminary Data Sheet
Features
• Efficiency: meets 80plus “Titanium” criteria
• Universal input with PFC
• Constant power characteristic
• 2 front panel LEDs: 1-input;2-[DC_OK, fault, warning]
• ON/OFF control of the 12Vdc output
• Remote sense on the 12Vdc output
Applications
• 12Vdc distributed power architectures
• Routers/ VoIP/Soft and other Telecom Switches
• Mid to high-end Servers, ATE Equipment
Targeted Countries
China, Taiwan, Japan, South Korea, Singapore
EU Countries
Brazil, Canada, Mexico, Argentina, USA
Description
• No minimum load requirements
• Active load sharing (single wire)
• Hot Plug-ability
• Standby orderable either as 3.3Vdc or 5Vdc @ 4A
• Auto recoverable OC & OT protection
• Operating temperature: -10 - 70°C (de-rated above 50°C)
• Digital status & control: dual/redundant PMBus™ serial
bus
• EN/IEC/UL60950-1 2
• EMI: class A FCC docket 20780 part 15, EN55022
• Meets EN6100 immunity and transient standards
• Shock & vibration: NEBS GR-63-CORE, level 3
nd
edition; UL, CSA, VDE , and CCC
The CAR2912TE Front-End provides highly efficient isolated power from worldwide input mains in a compact 1U
industry standard form factor. This power supply is ideal for applications where mid to light load efficiency is of key
importance in order to reduce system power consumption during ‘typical’ operational conditions.
The high-density, front-to-back airflow is designed for minimal space utilization and is highly expandable for future
2
growth. Dual/redundant, industry standard, PMBus™ compliant I
C communications busses offer a full range of
control and monitoring capabilities with sequential control from two independent sources
UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered tradem ark 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.
GE
CAR2912TE series front-end
Input: 90Vac to 264Vac; Output: 12Vdc @ 2900W; 3.3 or 5Vdc @ 4A Standby
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 2
FIN
Efficiency (T
=25°C, VO= 12V) VIN
Power Factor (VIN=115/230VAC), IO= 50% I
IO= I
0.98
0.99
Holdup time (Vout≥ 10.8VDC, Tamb 25°C, IO=I
) Vin= 230VAC
VIN= 100VAC
12
20
12Vdc MAIN OUTPUT
Set point
11.9
12.00
12.1
V
DC
Preliminary 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 Symbol Min Max Unit
Input Voltage: Continuous VIN 0 264 VAC
Operating Ambient Temperature TA -10 701 °C
Storage Temperature Tstg -40 85 °C
I/O Isolation voltage to Frame (100% factory Hi-Pot tested) 2121 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 85 115/230 264 VAC
Frequency Range (ETSI 300-132-1 recommendation)
Main Output Turn OFF
V
IN
Hysteresis between turn OFF and turn ON 5
Maximum Input Current (VO= V
VIN= 208VAC
Cold Start Inrush Current (Excluding x-caps, 25°C, <10ms,
per ETSI 300-132)
amb
O, set
, IO=I
) VIN= 100VAC
O, max
I
IN
I
IN
100% load
50% load
20% load
η
10% load
O, max
O, max
O, max
PF
T
Early warning prior to output falling below regulation2 2
Ride through T 10
Leakage Current (VIN= 250VAC, FIN = 60Hz) I
Isolation Input/Output
IN
Input/Frame 2121 V
Output/Frame 100 V
47 50/60 63 Hz
70 80
16.3
15.9
40 A
115V / 230V
92 / 93.5
93 / 96
%
92 / 94.0
88 / 91.5
3 mA
3000 V
VAC Main Outptut Turn ON 75 85
A
PEAK
ms
AC
AC
DC
DC
RMS
Parameter Symbol Min Typ Max Unit
Output Power 180 – 264 / 90-132 Vac
V
≤ 90V
AC
AC
Overall regulation (load, temperature) -2 +2 %
W
V
O
0 - 2900/1400 W
0 - 1200 W
1
Power derated above 50°C, see environmental section
2
Measured by the DC_OK signal going LO prior to the output decaying below 10.8Vdc
GE
CAR2912TE series front-end
Input: 90Vac to 264Vac; Output: 12Vdc @ 2900W; 3.3 or 5Vdc @ 4A Standby
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 3
P-P
Turn-ON delay
T 2 sec
Programmable range (hardware & software)
10.8 13.2
V
Current limit, Hiccup (programmable level)
110 130
% of FL
Ripple and noise
50
mV
Output current
IO 0 4
A
Parameter
Min
Typ
Max
Units
Notes
Full load, ; MTBF per SR232 Reliability protection for
Service Life
10 Yrs
Full load, excluding fans
Weight
Preliminary Data Sheet
12Vdc MAIN OUTPUT (continued)
Parameter Symbol Min Typ Max Unit
Ripple and noise3 -120 120
Turn-ON overshoot +3 %
mV
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)
Overvoltage protection, latched
(recovery by cycling OFF/ON via hardware or software)
Output current 180 ≥ VIN ≥ 264
90 ≥ V
≥ 132
IN
V
O
I
O
40 ms
50 ms
-5 +5 %V
13.8 14.8 15.8
0
242
117
O
DC
V
DC
A
DC
Active current share -5 +5 % of FL
STANDBY OUTPUT
Parameter Symbol Min Typ Max Unit
Set point VO 3.3 / 5.0 V
Overall regulation (load, temperature, aging) VO -5 +5 %
Overload protection - 110 150 % of FL
Isolation Output/Frame 100
DC
P-P
DC
V
DC
General Specifications
Reliability, 25°C
50°C
320,000
100,000
Hrs
electronic equipment, method I, case III,
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Control and Status for additional information.
Parameter Symbol Min Typ Max Unit
ON/OFF (Needs to be pulled HI via an external resistor)
Logic High (Module ON) I
V
Logic Low (Module OFF) I
V
IH
IH
IL
IL
0.7V
DD
0
20 µA
12 V
4 mA
0.8 VDC
DC
3
Measured across a 10µf tantalum and a 0.1µf ceramic capacitors in parallel. 20MHz bandwidth
GE
CAR2912TE series front-end
Input: 90Vac to 264Vac; Output: 12Vdc @ 2900W; 3.3 or 5Vdc @ 4A Standby
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 4
(pulled up internally to V
by a 10kΩ resistor)
Over Temperature Warning (pulled up internally to V
by a
10kΩ resistor)
Fault (pulled up internally to V
by a 10kΩ resistor)
Logic Low (Power supply is present)
VIL
0 0.1
VDC
Preliminary Data Sheet
Feature Specifications (continued)
Parameter Symbol Min Typ Max Unit
Output Voltage programming (Vprog)
Equation: Vout = 10.8 + (Vprog * 0.96)
Vprog range V
Programmed output voltage range Vo
Voltage adjustment resolution Vo
Output configured to 13.2Vdc V
Output configured to the 12Vdc set-point V
Interlock [short pin controlling presence of the 12VDC output]
stdby
12V output ON VI
12V output OFF VI
AC-OK (pulled up internally to V
by a 10kΩ resistor)
stdby
Logic High (Input within normal range) I
V
Logic Low (Input out of range) I
V
DC-OK (pulled up internally to V
Logic High (Output voltage is present; V
by a 10kΩ resistor)
stdby
≥ 10.7Vdc) I
OUT
V
Logic Low (Output voltage is not present; V
≤ 10.2V
OUT
) I
DC
V
stdby
prog
0
10.8
2.5 3.0 VDC
prog
prog
3.0
10
2.5 VDC
13.2 VDC
0.7 V
stdby
0
V
VDC
stdby
0.4 VDC
OH
OL
OH
OL
0.7 V
stdby
0
20 µA
V
VDC
stdby
4 mA
0.4 VDC
OH
OL
OH
OL
0.7 V
stdby
0
20 µA
VDC
V
stdby
4 mA
0.4 VDC
mVDC
VDC
Logic High (temperature within normal range) I
V
Logic Low (temperature is too high) I
V
OH
OH
OL
OL
0.7 V
stdby
0
20 µA
V
VDC
stdby
4 mA
0.4 VDC
Delayed shutdown after Logic Low transition Tdelay 10 sec
stdby
Logic High (No fault is present) I
V
Logic Low (Fault is present) I
V
PS Present [internally connected to Output return]
(Needs to be pulled HI via an external resistor)
Logic High (Power supply is not plugged in)
8V_INT (no components should be connected to this pin)
OH
OL
OH
OL
0.7 V
stdby
0
20 µA
V
VDC
stdby
4 mA
0.4 VDC
GE
CAR2912TE series front-end
Input: 90Vac to 264Vac; Output: 12Vdc @ 2900W; 3.3 or 5Vdc @ 4A Standby
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 5
Preliminary Data Sheet
Digital Interface Specifications
Parameter Conditions Symbol Min Typ Max Unit
PMBus Signal Interface Characteristics4
Input Logic High Voltage (CLK, DATA) VIH 0.7V
Input Logic Low Voltage (CLK, DATA) VIL 0 0.8 V
Input high sourced current (CLK, DATA) IIH 0 10 μA
Output Low sink Voltage (CLK, DATA, SMBALERT#) IO=5mA VOL 0.4 V
Output Low sink current (CLK, DATA, SMBALERT#) IOL 5 mA
Output High open drain leakage current (CLK,DATA,
SMBALERT#)
PMBus Operating frequency range Slave Mode FPMB 10 400 kHz
Measurement System Characteristics
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 accuracy5
IIN measurement range Direct
IIN measurement accuracy
VIN measurement range
VIN measurement accuracy
PIN measurement range
PIN measurement accuracy
Fan Speed measurement range
Fan Speed measurement accuracy
Fan speed control range
=3.6V I
V
O
Direct
Direct
Direct
Direct
Direct
Direct
Direct
OH
tSTRETCH 25 ms
I
RNG
I
OUT
V
OUT(rng)
V
OUT(acc)
Temp
Temp
I
IN(rng)
I
IN(acc)
V
IN(rng)
V
IN(acc)
P
N(rng)
P
IN(acc)
(rng)
(acc)
DD
0 10 μA
0 242 A
-2.5 +2.5 % of FL
0 14 V
-1 +1 %
0 125
-3 +3
0 18 AAC
-5 +5 %
0 320 VAC
-2 +2 %
0 3000 W
-3 +3 %
0 30k RPM
-10 10 %
0 100 %
3.6 V
°C
°C
4
Clock, Data, and SMBAlert need to be pulled up to VDD externally.
5
Temperature accuracy reduces non-linearly with decreasing temperature
GE
CAR2912TE series front-end
Input: 90Vac to 264Vac; Output: 12Vdc @ 2900W; 3.3 or 5Vdc @ 4A Standby
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 6
Parameter
Min
Typ
Max
Units
Notes
Storage Temperature
-40 85
°C
Operating Altitude
2250/7382
m/ft
Non-operating Altitude
8200/30k
m / ft
Power Derating with Altitude
2.0
Above 1524 m/5000 ft
Acoustic noise
55
Full load
Shock and Vibration acceleration
2.4
Grms
Meet IPC-9592B Class II
Environmental Specifications
Preliminary Data Sheet
Ambient Temperature
Power Derating with Temperature 2.5
6
-10
70 °C
%/°C
Derated above 50°C
50°C to 70°C
°C/301 m
°C/1000 ft
45
dbA
Half load
Over Temperature Protection 125/110 °C Shutdown / restart
Humidity
Operating
Storage
30
10
95
% Relative humidity, non-condensing
95
EMC Compliance
Parameter Criteria Standard Level Test
Conducted emissions EN55022, FCC Docket 20780 part 15, subpart J
AC input
Radiated emissions** EN55022 A* 30 – 10000MHz
Voltage dips EN61000-4-11 B -30%, 10ms
AC input
immunity
Enclosure
immunity
Voltage surge EN61000-4-5 A 4kV, 1.2/50µs, common mode
Fast transients EN61000-4-4 B 5/50ns, 2kV (common mode)
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
ESD EN61000-4-2 B 4kV contact, 8kV air
EN61000-3-2
ENV 50140 A
A* 0.15 – 30MHz
0 – 2 KHz
B -60%, 100ms
B -100%, 5sec
A 2kV, 1.2/50µs, differential mode
* Note: Contact the factory for a recommended external EMI filter to meet Class B emissions
Radiated emissions compliance is contingent upon the final system configuration.
**
6
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.
GE
CAR2912TE series front-end
Input: 90Vac to 264Vac; Output: 12Vdc @ 2900W; 3.3 or 5Vdc @ 4A Standby
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 7
Device
Address
Address Bit Assignments
(Most to Least Significant)
7 6 5 4 3 2 1
0
MCU
C or Dx
1 1 0
A3
A2
A1
A0
R/W
Broadcast
00
0 0 0 0 0 0 0
0
ARA7
12
0 0 0 1 1 0 0
1
MSB LSB
Control and Status
Preliminary Data Sheet
interrupted, for example if input power or bias power is
recycled.
Control hierarchy: Some features, such as output voltage,
can be controlled both through hardware and firmware. For
example, the output voltage is controlled both by a signal pin
(Vprog) and a PMBus command, (OPERATION) .
Unless otherwise noted, the signal pin controls the feature
until the firmware command is executed. However, once the
firmware command has been executed, the signal pin is
ignored. In the above example, the power supply will no
longer ‘listen’ to the Vprog pin if the OPERATION command
has been executed.
In summary, Vprog is utilized for initialized configuration of
the output voltage and to change the output voltage when
PMBus is not used for that function.
Analog controls: Details of analog controls are provided in
this data sheet under Feature Specifications.
Common ground: All signals and outputs are referenced to
Output return.
Control Signals
Device address: Address bits A3, A2, A1, A0 configure the
specific address of the power supply. With these four bits, up
to sixteen (16) 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’. The
least significant bit x (LSB) of the address byte is set to either
write [0] or read [1]. A write command instructs the power
supply. A read command accesses information from the
power supply.
When bias power is recycled to the controller the controller
restarts into its default configuration, programmed to set the
output as instructed by the V
software commanded settings permanently override the
margin setting. As an example of an effective use of
hardware programming prior to the availability of software
based controls is to add a resistor between V
Output_return. This is a way of changing the factory set point
of the front-end to whatever voltage level is desired by the
user during initial start-up.
Load share (I
generated and acted upon automatically by power supplies
connected in parallel. I
other 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 presence of the main 12Vdc
output voltage. This is an open collector signal that needs to
be pulled HI externally through a resistor. A logic HI turns ON
the main output.
A turn OFF command either through this signal (ON/OFF) or
firmware commanded would turn OFF the 12V output.
Interlock: This is a short signal pin that controls the presence
of the 12Vdc main output. This pin should be connected to
‘output return’ on the system side of the output connector.
The short pin ensures that no arcing or contact damage
occurs during the insertion/extraction process.
8V_INT: Provides the ability to back_bias a front-end that lost
input power thus maintaining the ability to communicate with
a remote controller. This pin should be interconnected among
units in a system.
): This is a single wire analog signal that is
share
share
pin. Again, subsequent
prog
and
prog
pins should be connected to each
Status signals
See Feature Specifications for additional information
AC OK: A TTL compatible status signal representing whether
the input voltage is within the anticipated range. This signal
Voltage programming (V
signal can vary the output voltage ± 10% from 10.8Vdc to
13.2Vdc.
Hardware voltage programming controls the output voltage
until a software margin command is executed. Software
voltage programming permanently overrides the hardware
margin setting and the power supply no longer listens to any
hardware margin settings until power to the controller is
7
Implement if feasible, this is a ‘read’ only address
): An analog voltage on this
prog
needs to be pulled HI externally through a resistor.
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.
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.
If an over temperature should occur, this signal would pull LO
for approximately 10 seconds prior to shutting down the
power supply. In its default configuration, the unit would
GE
CAR2912TE series front-end
Input: 90Vac to 264Vac; Output: 12Vdc @ 2900W; 3.3 or 5Vdc @ 4A Standby
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 8
Clock
Stretch
restart if internal temperatures recover within normal
operational levels. At that time the signal reverts back to its
open collector (HI) state.
Fault: This signal goes LO for any failure that requires rectifier
replacement. These faults may be due to:
• Fan failure
• Over-temperature warning
• Over-temperature shutdown
• Over-voltage shutdown
• Internal Rectifier Fault
PS Present: This signal notifies the system controller that a
power supply is physically present in the slot. This signal pin is
pulled down to Output_return by the power supply.
Serial Bus Communications
The I²C interface 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 ‘Output Return’.
Pull-up resistors: The clock, data, and SMBusAlert# lines do
not have any internal pull-up resistors inside the power
supply. The customer is responsible for ensuring that the
transmission impedance of the communications lines
complies with I2C and SMBus standards.
Serial Clock (SCL): The clock pulses on this line are generated
by the host that initiates communications across the I²C
Serial bus. This signal needs to be pulled HI externally through
a resistor as necessary to ensure that rise and fall time timing
and the maximum sink current is in compliance to the I²C
/SMBus specifications.
Serial Data (SDA): This line is a bi-directional data line. This
signal needs to be pulled HI externally through a resistor as
necessary to ensure that rise and fall time timing and the
maximum sink current is in compliance to the I²C /SMBus
specifications.
SMBUSAlert#: This hardware signal pin is normally HI. When
asserted (logic LO) it signifies to the system controller that the
state of the power supply has changed or that
communication errors occurred.
Preliminary Data Sheet
communications error alarms (PEC error, data error,
command error). If the alarm state is still present the status
and alarm registers get reset into their alarm state, however,
the SMBAlert# does not assert again.
‘Manufacturer Specific’ commands are used to support
instructions that are not offered by the PMBus™ specification.
All communication over the PMBus interface must support
Packet Error Checking (PEC). The PMBus master must
generate the correct PEC byte for all transactions, and check
the PEC byte returned by the power supply.
Non-volatile memory is used to store configuration settings.
Not all settings programmed into the device are
automatically saved into this non-volatile memory. Only those
specifically identified as capable of being stored can be
saved. (see the Table of Commands for which command
parameters can be saved to non-volatile storage).
Non-supported commands: Non supported commands are
flagged by setting the appropriate STATUS bit and issuing an
SMBAlert# to the ‘host’ controller. If a non-supported read is
requested the power supply will return 0x00h for data.
Data out-of-range: The power supply validates data settings
and sets the data out-of-range bit and SMBAlert# if the data
is not within acceptable range.
Master/Slave: The ‘host controller’ is always the MASTER.
Power supplies are always SLAVES. SLAVES cannot initiate
communications or toggle the Clock. SLAVES also must
respond expeditiously at the command of the MASTER as
required by the clock pulses generated by the MASTER.
Clock stretching: The ‘slave’ µController inside the power
supply may initiate clock stretching if it is busy and it desires
to delay the initiation of any further communications. During
the clock stretch the ‘slave’ may keep the clock LO until it is
ready to receive further instructions from the host controller.
The maximum clock stretch interval is 25ms.
The host controller needs to recognize this clock stretching,
and refrain from issuing the next clock signal, until the clock
line is released, or it needs to delay the next clock pulse
beyond the clock stretch interval of the power supply.
Digital Feature Descriptions
PMBus™ compliance: The power supply is compliant to the
Power Management Bus (PMBus™) rev1.2 requirements with
the exception of response to the Alert Response Address (ARA)
command. This is further explained under the section on ARA.
The power supply clears the STATUS and ALARM registers and
the SMBAlert# signal after a successful read back of the
information in these registers, with the exception of
Figure 1. Example waveforms showing clock stretching.
Note that clock stretching can only be performed after
completion of transmission of the 9
being the START command.
th
ACK bit, the exception
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