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SP791 Datasheet(PDF) 3 Page - Sipex Corporation

Part # SP791
Description  Low Power Microprocessor Supervisory with Battery Switch-Over
PDF  19 Pages
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Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP791 Datasheet(HTML) 3 Page - Sipex Corporation

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3
SP791DS/08
SP791 Low Power Microprocessor Supervisory with Battery Switch-Over
© Copyright 2000 Sipex Corporation
ELECTRICAL CHARACTERISTICS (continued)
(Vcc = 4.75V to 5.5V, VBATT = 2.8V, T
A = TMIN to TMAX unless otherwise noted, typicals specified at 25
oC)
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
BATT ON Output
0.1
0.4
V
I
SINK = 3.2mA
Low Voltage
0.7
1.5
I
SINK = 25mA
BATT ON Output
60
mA
Sink Current
Short Circuit Current
1
15
100
µA
Source Current
RESET, LOW-LINE AND WATCHDOG TIMER
RESET Threshold Voltage
4.50
4.65
4.75
V
RESET Threshold Hysteresis
15
mV
LOWLINE-to-RESET
150
mV
Threshold Voltage
VCC-to-RESET Delay
100
µs
Power down
VCC-to-LOWLINE Delay
80
µs
Power down
RESET Active Timeout Period
140
200
280
ms
Power up
Watchdog Timeout Period
1.0
1.6
2.25
sec
SWT connected to V
OUT
Minimum Watchdog
10
ms
4.7nF capacitor connected from
Timeout Period
SWT to GND
Minimum Watchdog Input
100
ns
V
IL = 0.8V, VIH = 0.75 X VCC
Pulse Width
WDPO Pulse Width
1
ms
WDPO-to-WDO Delay
70
ns
RESET Output Voltage
0.004
0.3
V
I
SINK=50µA,VCC=1.0V,VCC
Ä
0.1
0.4
I
SINK = 3.2 mA, VCC = 4.25V
3.5
I
SOURCE = 1.6mA, VCC = 5V
RESET Output
Short-Circuit Current
7
20
mA
Output source current
LOWLINE Output Voltage
0.4
V
I
SINK = 3.2mA, VCC = 4.25V
3.5
I
SOURCE = 1µA, VCC = 5V
LOWLINE Output
15
100
µA
Output source current
Short-Circuit Current
WDO Output Voltage
0.4
V
I
SINK = 3.2mA
3.5
I
SOURCE = 500µA, VCC = 5V
WDO Output Short-Circuit
3
10
mA
Output source currrent
Current
WDPO Output Voltage
0.4
V
I
SINK = 3.2mA
3.5
I
SOURCE = 1mA
WDPO Output Short-Circuit
7
20
mA
Output source current
Current



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