sp791 Exar Corporation, sp791 Datasheet - Page 7

• Manufacturer Part Number: sp791
• Description: Low Power Microprocessor Supervisory With Battery Switch-over
• Manufacturer: Exar Corporation

SP791DS/08
TYPICAL CHARACTERISTICS
1000
100
100
20
16
12
10
80
60
40
20
8
4
0
1
0
1
0
10
V
Maximum Reset Comparator Overdrive
Slope=5
BATT
V
50 Driver
No Reset Generated
CC
VCC=5V
Chip-Enable Propagation Delay
=4.5V
Reset Threshold Voltage - V
vs. CE OUT Load Capacitance
=0V
50
Below Line
Without Causing a Reset
VBATT to VOUT vs.
100
100
Output Current
IOUT (mA)
Cload (pF)
SP791 Low Power Microprocessor Supervisory with Battery Switch-Over
150
10
200
0.1 F Capacitor
Reset Generated
1000
V
Above Line
OUT
CC
to GND
(mV)
250
(25
300
10000
100
o
C, unless otherwise noted)
7
1000
100
IE+2
IE+1
IE+0
IE-1
IE-2
IE-3
IE-4
IE-5
IE-6
IE-7
IE-8
250
200
150
100
10
50
1
0
1
.0000
0
Slope=0.6
V
V
V
10
BATT
CC
BATT
V
Battery Current vs. V
=4.5V
CC
=2.8V
=5V
=0V
20 30 40
vs. Timing Capacitor
Watchdog Timeout
Timing Capacitor (nF)
10
Output Current
V
CC
V
IOUT (mA)
CC
to V
(0.5V/div)
50 60
OUT
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vs.
100
CC
70 80
Voltage
V
BATT
=2.8V
90 100
5.000
1000