AS2316

Features:

 Standard PC Power Good:
UV Detection on 4 rails
UV Detection of AC/Bulk supply
OV Detection on 4 rails
Open collector PG out
Pogrammable Fault output:
OV
OV plus UV
OV plus UV after startup delay
OV Crow Bar Driver
 Digital ON/OFF input
2.5V Voltage Reference
Operates from 5V or 12V rail


Pinout




Specifications

Parameter	Symbol	Rating	Unit
Supply Voltage	VCC	20	V
Continuous Power Dissipation at 25° C	PD	1000	mW
Junction Temperature	TJ	150	°C
Storage Temperature Range	TSTG	65 to 150	°C
Lead Temperature, Soldering 10 Seconds	TL	300	°C

Description

The AS2316 is a housekeeping circuit for monitoring the outputs of power supplies. The AS2316  directly senses all the output rails without the need for external dividers and detects undervoltage and overvoltage. The AS2316 also provides an additional undervoltage comparator which may be configured with any arbitrary hysteresis to sense a divided down representation of the AC bulk voltage. The housekeeping section provides all the features necessary to allow external caps to set the common timing features of PC type power supplies. In addition, negative rails may be sensed without the necessity of a VEE connection, and negative sensing may be disabled without affecting operation of the positive sense section. The 2.5 V series reference is available and can source up to 5 mA. The AS2316 is available in 16 lead packages. Outputs include a POK (Power OK) and a fault signal.

The AS2316 includes sensing for ±12 V, 5 V, and 3.3V. The AS2316 exchanges a -5 V sense capability for the 3.3 V input. The AS2316 monitors all supply voltages, but lacks CBD (Crow-Bar Driver).