GE IC698PSA100

Description

The RX7i power supplies provide 5V, 12V, and -12V power, and the VME
AC_FAIL# logic level signal to modules on the RX7i backplane. The low capacity
power supply (IC698PSA100) delivers up to 100W total output at ambient
temperatures of 0 to 60ºC without forced air cooling. The high capacity power
supply (IC698PSA350) accommodates applications requiring more power,
providing up to 350W total output. The high capacity supply requires forced air
cooling, provided by a fan tray mounted on the bottom of the rack.
The Power Supply Module plugs directly into slot 0 in the RX7i main rack.
The power supply output can ride through the loss of up to one AC input line
cycle without loss of output power. Protection is provided for overcurrent,
overtemperature, and overvoltage fault conditions.
Features
■ Operation from 85 to 264 VAC,
100-150 VDC
■ Three output voltages: IC698PSA100
+5 VDC output up to 20 amps
+12 VDC output up to 2 amps
–12 VDC output up to 1 amp
■ Three output voltages: IC698PSA350
+5 VDC output up to 60 amps
+12 VDC output up to 12 amps
–12 VDC output up to 4 amps
■ Slide-in rack mount construction using PICMG 2.11 standard connector
■ Electronic short circuit overcurrent protection
■ Electronic overvoltage and overtemperature fault protection
■ Power Factor correction for AC operation
Overcurrent/Short Circuit Protection
All outputs are protected against overcurrent and
short circuit with automatic recovery upon removal of
fault.
An electronic current limit is provided on each of the
three outputs. An overload on any output will cause
the voltage to collapse and may cause the other
output voltages to collapse.
Normal operation will resume after removal of the
overload.
VMEbus Power Monitor Interface Timing
ACFAIL#
The ACFAIL# signal is pulled down when the power
supply inputs are no longer being provided, when
the ON/OFF switch is OFF, or when the required DC
output voltage levels are not within specifications.
The ACFAIL# signal is asserted at least 5ms before
outputs fall below their specified limits to provide
sufficient warning to the system of imminent power
failure.
SYSRESET#
The RX7i power supplies do not drive the
SYSRESET# signal on the VME backplane. The
RX7i CPU module controls the SYSRESET# signal.
Over Temperature and Air Flow Protection
The RX7i power supplies have internal temperature
sensing that shuts down the output channels when
overheated. The overtemperature failure allows
automatic recovery once the unit cools down.
The low capacity power supply is capable of
operating at full capacity (100W) from 0 to 60ºC with
only convection cooling.
The high capacity power supply is capable of
operating at full capacity (350W) from 0 to 60ºC with
70 CFM forced air cooling provided by a fan tray
mounted below the system chassis. The high
capacity 350W power supply can operate at a
limited capacity with only convection cooling. See
the temperature derating curves on the next page.