Advanced Analog Technology, Inc.
AAT1014
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 latches high and combines with a
low PGO output.
OVP and UVP (Over Voltage Protection
and Under Voltage Protection)
OVP monitors 3.3V, 5V, and 12V via V
CC
pin,
while UVP monitors 3.3V and 5V. OVP and
UVP levels are determined by internal voltage
dividers. The typical values are 3.9V, 6.1V,
13.4V for OVP and 2.69V, 4.3V for UVP,
respectively.
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 38 ms de-bounce time.
AAT1014 offers 2.3 ms delay time after de-bounce
to trigger FPO when ONCTL switches from
low to high.
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.
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Advanced Analog Technology, Inc
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AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
