APW1683 Datasheet, PDF (1/7 Pages) Anpec Electronics Coropration – 3-Channel Power Supply Supervisor

APW1683
3-Channel Power Supply Supervisor
Features
• Over Voltage Protection and Lock Out for
! 3.3 V, 5 V, and 12 V
• Under Voltage Protection and Lock Out for
! 3.3 V and 5 V
• Fault Protection Output with Open Drain
Output Stage
• Open Drain Power Good Output Signal for
! Power Good Input, 3.3 V and 5 V
• 300 ms Power Good Delay
• 2.3 ms PSON Control to FPO Turn-Off
Delay
• 38 ms PSON Control Debounce
• 75 ms Delay for 3.3V and 5V Under Voltage
! Protection
• 73 µs Width Noise Deglitches
• Wide Power Supply Voltage Range
from 4 V to 15 V
• Intelligent Under Voltage Protection to Pre
vent Instantaneously AC Power Black Out
Applications
• PC Switching Power Supply
Ordering Information
General Description
The APW1683 is designed to minimize the external
components of personal-computer switching power
supply systems. It provides protection circuits, power
good indicator, fault protection output FPO and
PSON control.
OVP (over voltage protection) monitors 3.3V, 5 V,
and 12 V (12 V OV detects via V _CC terminal). UVP
(under voltage protection) monitors 3.3V and 5V.
When an OV or UV condition is detected, the PGO
(power good output) is set to low and FPO is latched
to high. PSON from low to high resets the protection
latch. There is a 2.3ms turn-off delay from PSON
to FPO . There is no delay during turn on.
Power good feature monitors PGI, 3.3V and 5V un-
der voltages, and issues a power good signal when
they are ready.
Pin Description
PGI
1
GND
2
FPO
3
PSON
4
8
PGO
7
VCC
6
VS5
5
VS33
APW1683
Handling Code
Temp. Range
Package Code
Package Code
J : DIP - 8
Temp. Range
C : 0 to 70 ^°C
Handling Code
TU : Tube
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright  ANPEC Electronics Corp.
1
Rev. P.2 - Aug., 2001
www.anpec.com.tw