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SP704 Datasheet Preview

SP704 Datasheet

Low Power Microprocessor Supervisory with Battery Switch-Over

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® SP703/SP704
Low Power Microprocessor Supervisory
with Battery Switch-Over
s Precision Voltage Monitor:
SP703 at 4.65V
SP704 at 4.40V
s Reset Time Delay - 200ms
s Debounced TTL/CMOS -
Compatible Manual - Reset Input
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 VCC Mode (0.6)
25mA Output in Battery Mode (5)
s Voltage Monitor for Power Fail or
Low Battery Warning
s Available in 8 pin SO and DIP packages
s RESET asserted down to VCC = 1V
s Pin Compatible Upgrades to
MAX703/MAX704
DESCRIPTION
The SP703/704 devices are 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 SP703/704
devices include a manual reset input, a µP 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 µP and its related digital components will find the series to be an ideal solution.
VOUT 1
VCC 2
GND 3
PFI 4
8 VBATT
7 RESET
6 MR
5 PFO
VBATT BATTERY SWITCHOVER
CIRCUITRY
VOUT
VCC
RESET
RESET
GENERATOR
1.25V
MR
PFI
1.25V
PFO
PINOUT
SP703/704DS/07
INTERNAL BLOCK DIAGRAM
SP703/704 Low Power Microprocessor Supervisory
1
© Copyright 2000 Sipex Corporation




Sipex

SP704 Datasheet Preview

SP704 Datasheet

Low Power Microprocessor Supervisory with Battery Switch-Over

No Preview Available !

ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifica-
tions below is not implied. Exposure to absolute maxi-
mum rating conditions for extended periods of time
may affect reliability and cause permanent damage to
the device.
VCC........................................................-0.3V to 6.0V
VBATT.....................................................-0.3V to 6.0V
All Other Inputs......................................-0.3V to (VCC +0.3V)
Input Current:
VCC.........................................................250mA
VBATT........................................................50mA
GND........................................................20mA
Output Current:
VOUT.....Short-Circuit Protected for up to 10sec
All Other Inputs.................................20mA
Rate of Rise, VCC,VBATT..................100V/µs
Continuous Power Dissipation.......500mW
Storage Temperature.......-65°C to +160°C
Lead Temperature(soldering,10sec).................+300°C
ESD Rating.............................4kV Human Body Model
SPECIFICATIONS
Vcc=4.75v to 5.50V for SP703, VCC = 4.50V to 5.50V for SP704, VBATT=2.80V, TA=TMIN to TMAX, typical specified at 25OC, unless otherwise noted.
PARAMETERS
MIN.
TYP.
MAX. UNITS CONDITIONS
Operating Voltage Range,
0
5.5 Volts
VCC or VBATT, NOTE 1
Supply Current, ISUPPLY,
ISUPPLY in Battery Backup Mode,
VCC = 0V, VBATT = 2.8V
VBATT Standby Current, NOTE 2
-0.1
35
0.001
60
0.6
0.02
µA excluding IOUT
µA
µA VCC > VBATT + 0.2V
VOUT Output
VOUT in Battery-Backup Mode
VCC < VBATT - 0.2V
VCC - 0.1
VBATT -0.15
VCC - 0.03
VCC - 0.15
VBATT - 0.04
VBATT - 0.20
Volts
Volts
IOUT = 50mA
IOUT = 250mA
IOUT = 5mA
IOUT = 25mA
Battery Switch Threshold,
VCC to VBATT
Battery Switchover Hysteresis
20 Power-up
mV
-20 Power-down
40 mV Peak to Peak
Reset Threshold
4.50
4.65
4.75
SP703
4.25
4.40
4.50 Volts SP704
SP703/704DS/07
SP703/704 Low Power Microprocessor Supervisory
2
© Copyright 2000 Sipex Corporation


Part Number SP704
Description Low Power Microprocessor Supervisory with Battery Switch-Over
Maker Sipex
Total Page 16 Pages
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