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廬

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

60碌A(chǔ) Maximum Operating Supply Current

s

0.6碌A(chǔ) Maximum Battery Backup Current

s

0.1碌A(chǔ) Maximum Battery Standby Current

s

Power Switching

250mA Output in V

CC

Mode (0.6鈩?

25mA Output in Battery Mode (5鈩?

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 (碌P) supervisory

circuits that integrate a myriad of components involved in discrete solutions to monitor power-

supply and battery-control functions in

碌P

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

碌P

reset and backup-battery switchover, and power-failure warning, a complete

碌P

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

碌P

and it鈥檚 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

漏 Copyright 2000 Sipex Corporation

1

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