®
SP690A/692A/802L/
802M/805L/805M
Low Power Microprocessor Supervisory
with Battery Switch-Over
s
Precision Voltage Monitor:
SP690A/SP802L/SP805L at 4.65V
SP692A/SP802M/SP805M at 4.40V
s
Reset Time Delay - 200ms
s
Watchdog Timer - 1.6 sec timeout
s
Minimum component count
s
60µA Maximum Operating Supply Current
s
0.6µA Maximum Battery Backup Current
s
0.1µA Maximum Battery Standby Current
s
Power Switching
250mA Output in V
CC
Mode (0.6Ω)
25mA Output in Battery Mode (5Ω)
s
Voltage Monitor for Power Fail or
Low Battery Warning
s
Available in 8 pin SO and DIP packages
s
RESET asserted down to V
CC
= 1V
s
Pin Compatible Upgrades to
MAX690A/692A/802L/802M/805L
DESCRIPTION
The
SP690A/692A/802L/802M/805L/805M
are a family of microprocessor (µP) supervisory
circuits that integrate a myriad of components involved in discrete solutions to monitor power-
supply and battery-control functions in
µP
and digital systems. The series will significantly
improve system reliability and operational efficiency when compared to discrete solutions.
The features of the
SP690A/692A/802L/802M/805L/805M
include a watchdog timer, a
µP
reset and backup-battery switchover, and power-failure warning, a complete
µP
monitoring
and watchdog solution. The series is ideal for applications in automotive systems, computers,
controllers, and intelligent instruments. All designs where it is critical to monitor the power
supply to the
µP
and it’s related digital components will find the series to be an ideal solution.
PART NUMBER
SP690A
SP692A
SP802L
SP802M
SP805L
SP805M
SP690A/692ADS/08
RESET
Threshold
4.65 V
4.40 V
4.65 V
4.40 V
4.65 V
4.40 V
RESET
Accuracy
125mV
125mV
75mV
75mV
125mV
125mV
RESET Active
LOW
LOW
LOW
LOW
HIGH
HIGH
PFI Accuracy
4%
4%
2%
2%
4%
4%
SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over
© Copyright 2000 Sipex Corporation
1
SIPEX [ SIPEX CORPORATION ]
