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ADM692A Datasheet(PDF) 2 Page - Analog Devices

Part # ADM692A
Description  Microprocessor Supervisory Circuits
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADM692A Datasheet(HTML) 2 Page - Analog Devices

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ADM690A/ADM692A/ADM802L/M/ADM805L/M–SPECIFICATIONS
–2–
REV. 0
(VCC = 4.75 V to 5.5 V (ADM690A/ADM802L/ADM805L), VCC = 4.5 V to 5.5 V, (ADM692A/ADM802M/ADM805M), VBATT = +2.8 V, TA = TMIN to TMAX
unless otherwise noted)
Parameter
Min
Typ
Max
Units
Test Conditions/Comments
VCC/VBATT OPERATION
1
VCC Operating Voltage Range
1.0
5.5
V
Supply Current (Excludes IOUT)
70
100
µA
Supply Current in Battery Backup Mode
0.05
1.0
µAV
CC = 0 V, VBATT = 2.8 V
Battery Standby Current
5.5 V > VCC > VBATT + 0.2 V
(+ = Discharge, – = Charge)
–0.1
+0.02
µA
VOUT Output Voltage
VCC – 0.02
VCC – 0.01
V
IOUT = 5 mA
VCC – 0.5
VCC – 0.05
V
IOUT = 50 mA
VCC – 0.02
V
IOUT = 250 mA
VOUT in Battery Backup Mode
VBATT – 0.05
VBATT – 0.002
V
IOUT = 250 µA, VCC < VBATT – 0.2 V
Battery Switchover Threshold
20
mV
Power Up
–20
mV
Power Down
Battery Switchover Hysteresis
40
mV
RESET THRESHOLD
Reset Voltage Threshold
ADM690A, ADM802L, ADM805L
4.5
4.65
4.75
V
ADM692A, ADM802M, ADM805M
4.25
4.4
4.5
V
ADM802L
4.55
4.7
V
TA = 25
°C, V
CC Falling
ADM802M
4.30
4.45
V
TA = 25
°C, V
CC Falling
Reset Threshold Hysteresis
40
mV
Reset Timeout Delay
140
200
280
ms
RESET
Output Voltage
VCC – 1.5
V
ISOURCE = 800
µA
0.4
V
ISINK = 3.2 mA
0.3
V
ISINK = 100
µA, V
CC = 1 V
RESET Output Voltage
0.8
V
ISOURCE = 4
µA, V
CC = 1.1 V
VCC – 1.5
V
ADM805L/M, ISOURCE = 800 µA
0.4
V
ADM805L/M, ISINK = 3.2 mA
WATCHDOG TIMER
Watchdog Timeout Period
1.0
1.6
2.25
s
WDI Input Pulse Width
50
ns
VIL = 0.4, VIH = 0.8 (VCC)
WDI Input Threshold
Logic Low
0.8
V
Logic High
3.5
V
WDI Input Current
10
µA
WDI = VCC
–10
µA
WDI = 0 V
POWER FAIL DETECTOR
PFI Input Threshold
1.20
1.25
1.30
V
ADM690A, ADM692A, ADM805L/M
1.225
1.25
1.275
V
ADM802L/M
PFI Input Current
–25
0.01
+25
nA
PFO
Output Voltage
VCC – 1.5
V
ISOURCE = 800
µA
0.4
V
ISINK = 3.2 mA
NOTES
1Either V
CC or VBATT can be 0 V if the other > +2.0 V.
Specifications subject to change without notice.


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