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CAR1248FPBXXZ01A データシート(PDF) 7 Page - Lineage Power Corporation |
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CAR1248FPBXXZ01A データシート(HTML) 7 Page - Lineage Power Corporation |
7 / 11 page GE Data Sheet CAR1248FP series rectifier Input: 90VAC to 264VAC; Output: 48VDC @ 1200W; 5 VDC @ 0.5A 12 April 2012 ©2012 General Electric Company. All rights reserved. Page 7 Control and Status Analog controls: Details of analog controls are provided in this data sheet under Signal Definitions. Common ground: All signals and outputs are referenced to Output return. These include ‘Vstb return’ and ‘Signal return’. Control Signals Voltage programming (Vprog): An analog voltage on this signal can vary the output voltage from 43.2VDC to 52.8VDC. The equation of this signal is: VOUT = 43.2 + 3.3 (Vprog – 0.364) 0.364 < Vprog < 3.27 If Vprog is ≥ 4V, or left open the programming signal is ignored and the unit output is set at the setpoint of 48VDC. Load share (Ishare): Single wire analog signal between power supplies connected in parallel. The Ishare pins should be tied together for power supplies. No resistors or capacitors should get connected to this pin. Remote ON/OFF: Controls the presence of the main 48VDC output voltage. This is an open collector, TTL level control signal. Logic 1 turns ON the 48VDC output, while a Logic 0 turns OFF the 48VDC output. A turn OFF command either through this signal or firmware commanded would turn OFF the 48V output. Enable: This is a short signal pin that controls the presence of the 48VDC main output. 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 external EEPROM. When left open the EEPROM is write protected. A LO permits writing to the EEPROM. This signal is pulled HI internally by the power supply. Status signals Output current monitor (Imon): A voltage level proportional to the output current is present on this pin. AC OK: TTL compatible open collector. A (HI) on this signal indicates that the input voltage is present within limits. DC OK: TTL compatible, open collector. A (HI) on this signal indicates that the output voltage is present. Over temp warning: TTL compatible, open collector. A (HI) on this signal indicates that temperatures are normal. If an over temperature should occur, this signal changes to LO for 10 seconds prior to shutdown. Unit restarts if internal temperatures recover to normal operational levels. Fault: TTL compatible, open collector. A (HI) on this signal indicates that no faults are present. This signal activates for OTP, OVP, OCP, or AC fault. PS Present: Connected to ‘output return’. Its intent is to indicate to the system that a power supply is present. This signal may need to be pulled HI externally through a resistor. Interrupt: A TTL compatible status signal. Needs to be pulled HI externally through a resistor. Open collector (HI) on this signal indicates that no Interrupt has been triggered. Serial Bus Communications – CAR1248FPxC 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 ‘Signal Return’. Device addressing: The microcontroller (MCU) and the EEPROM have the following addresses: Device Address Bit Assignments (Most to Least Significant) MCU 1 0 1 1 A2 A1 A0 R/W EEPROM 1 0 1 0 A2 A1 A0 R/W Address lines (A2, A1, A0): 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 connect to ‘Output Return’ Serial Clock (SCL): Host generated, this signal needs to be pulled up externally ensuring that rise and fall time timing and the maximum sink current is in compliance to the I²C specification. Serial Data (SDA): This is a bi-directional line that needs to be pulled up externally ensuring that rise and fall time timing and the maximum sink current is in compliance to the I²C specification. Command code: All registers are 16 bits, written as LSB followed by MSB. All A/D’s are 10 bit (1024 steps). All constants can be fine-tuned to compensate for manufacturing tolerances; Name CMD Access Default /Name Bits Constant VOUT 00 R 48 0.102 IOUT 01 R - 0.042 Temperature 02 R - 0.005 ON/OFF 03 R/W 1 – OFF, 0 – ON Ilimit 04 R/W 28.6 0.042 Vset 05 R/W 48 0.094 Vprog 06 R VOUT=43.2 + 3.3 (Vprog – 0.364) OT trip 07 R/W 120 0.0049 OT recover 08 R/W 110 0.005 DC_OK_HI 09 R/W 67.5 0.102 DC_OK_LO 0A R/W 28.9 0.102 STATUS 0B R Input 0 1-LL AC_OK 1 1-normal DC_OK 2 OT 3 Fault 4 Intrpt 5 OV 6 DC_INT 7 Firmware 0C R EEPROM 0D- 7C R/W |
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