AAT1011A Datasheet, PDF (2/7 Pages) Advanced Analog Technology, Inc. – 3-CHANNEL PC POWER SUPPLY SUPERVISOR FOR 3.3V, 5V AND 12V

Advanced Analog Technology, Inc.
FPO (Fault Protection Output)
NORMAL=“LOW”, FAULT=“HIGH”
FPO indicates the fault condition of either Over
Voltage or Under Voltage. When a fault state
occurs, the FPO latched high and combined with a
low PGO output.
AAT1011A
OVP and UVP
OVP monitors 3.3V, 5V, and 12V (via Vcc pin)
UVP monitors 3.3V and 5V. OVP and UVP
levels are determined by internal voltage dividers.
The typical values are 3.9V, 6.1V, 13.8V for OVP
and 2.83V, 4.3V for UVP, respectively.
PGO (Power Good Output)
NORMAL=“HIGH”, FAULT=“LOW”.
The Power Good signal will be issued with 300
ms delay after 3.3V, 5V, 12V and PGI are ready.
Power Good Output should be low before the
output voltage is out of regulation at turn-off.
ONCTL (On/Off Control)
On/Off Control is used to reset the latched state of
FPO and to externally control the switching
power supply system with a 49 ms de-bounce time.
AAT1011 offers 2.3 ms delay time after de-bounce
to trigger FPO when ONCTL switches from
low to high
.
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Advanced Analog Technology, Inc.
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