sp703ep-l Exar Corporation, sp703ep-l Datasheet
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sp703ep-l
Manufacturer Part Number
sp703ep-l
Description
Sp704 -low Power Microprocessor Supervisory With Battery Switch-over
Manufacturer
Exar Corporation
Datasheet
1.SP703EP-L.pdf
(16 pages)
DESCRIPTION
The SP703/704 devices are microprocessor ( P) supervisory circuits that integrate a myriad
of components involved in discrete solutions to monitor power-supply and battery-control
functions in P and digital systems. The series will significantly improve system reliability and
operational efficiency when compared to discrete solutions. The features of the SP703/704
devices include a manual reset input, a P reset and backup-battery switchover, and power-
failure warning. The series is ideal for applications in computers, controllers, intelligent
instruments and automotive systems. All designs where it is critical to monitor the power
supply to the P and its related digital components will find the series to be an ideal solution.
PINOUT
SP703/704DS/07
Precision Voltage Monitor:
Reset Time Delay - 200ms
Debounced TTL/CMOS -
Minimum component count
60 A Maximum Operating Supply Current
Pin Compatible Upgrades to
GND
Compatible Manual - Reset Input
0.6 A Maximum Battery Backup Current
0.1 A Maximum Battery Standby Current
Power Switching
250mA Output in V
25mA Output in Battery Mode (5 )
Voltage Monitor for Power Fail or
Low Battery Warning
Available in 8 pin SO and DIP packages
RESET asserted down to V
MAX703/MAX704
V
V
SP703 at 4.65V
SP704 at 4.40V
PFI
OUT
CC
2
1
3
4
Low Power Microprocessor Supervisory
®
CC
Mode (0.6 )
8
7
6
5
CC
SP703/704 Low Power Microprocessor Supervisory
= 1V
RESET
V
PFO
MR
BATT
with Battery Switch-Over
1
INTERNAL BLOCK DIAGRAM
V
V
MR
PFI
BATT
CC
Now available in Lead Free
BATTERY SWITCHOVER
CIRCUITRY
SP703/SP704
1.25V
1.25V
© Copyright 2000 Sipex Corporation
GENERATOR
RESET
RESET
PFO
V
OUT