SP6339 Datasheet, PDF (1/13 Pages) Sipex Corporation – Triple μPower Supervisory Circuit with Manual Reset and Watchdog

SP6339, SP6341
Triple µPower Supervisory Circuit
with Manual Reset and Watchdog
FEATURES
■ Low operating voltage of 1.6V
■ Low operating current of 20µA typical
■ Monitors up to 3 supplies simultaneously
■ Adjustable input monitors down to 0.5V
■ Reset asserted down to 0.9V
■ 2% accuracy over temperature range
■ Open Drain (OD) or CMOS RSTB output
■ 4 Reset Timeout Periods:
50mS, 100mS, 200mS, and 400mS
■ Watch Dog Timer Function -- WDI
■ Independent OD or CMOS Watchdog
Output (Active Low) -- WDOB
■ Manual Reset Input (Active Low) -- MRIB
■ 8 Pin TSOT package
V1 ¹
V2 2
WDI 3
V3 4
SP6339
8 Pin TSOT
8 RSTB
7 MRIB
6 GND
5 WDOB
Open Drain RESET
SEE PAGE 2 FOR OTHER
AVAILABLE PINOUTS
Now Available in Lead Free Packaging
DESCRIPTION
SP6339-SP6341 Triple µPower Supervisory Circuit Family is a family of microprocessor
reset supervisory circuits with multiple reset voltages. The family provides low voltage
monitoring ability for up to three supplies with two precision factory-set thresholds and one
user defined custom threshold. These circuits perform a single function: if any of the input
supply voltages drops below its associated threshold, reset outputs are asserted. Products
in the family offer manual reset and watchdog functionalities. SP6339 and SP6341 are
packaged in an 8-pin TSOT package. All devices are fully specified over -40^oC to +85^oC
temperature range.
TYPICAL APPLICATION CIRCUIT
Nov 20-06 Rev J
SP6339-SP6341 Triple µPower Supervisory Circuit
1
© Copyright 2006 Sipex Corporation