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ADM8693ARU Datasheet(PDF) 2 Page - Analog Devices

Part No. ADM8693ARU
Description  Microprocessor Supervisory Circuits
Download  16 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADM8693ARU Datasheet(HTML) 2 Page - Analog Devices

 
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ADM8690–ADM8695–SPECIFICATIONS
Parameter
Min
Typ
Max
Units
Test Conditions/Comments
BATTERY BACKUP SWITCHING
VCC Operating Voltage Range
ADM8690, ADM8691, ADM8694, ADM8695
4.75
5.5
V
ADM8692, ADM8693
4.5
5.5
V
VBATT Operating Voltage Range
ADM8690, ADM8691, ADM8694, ADM8695
2.0
4.25
V
ADM8692, ADM8693
2.0
4.0
V
VOUT Output Voltage
VCC – 0.005
VCC – 0.0025
V
IOUT = 1 mA
VCC – 0.2
VCC – 0.125
V
IOUT
≤ 100 mA
VOUT in Battery Backup Mode
VBATT – 0.005 VBATT – 0.002
V
IOUT = 250 µA, VCC < VBATT – 0.2 V
Supply Current (Excludes IOUT)
140
200
µAI
OUT = 100 µA
Supply Current in Battery Backup Mode
0.4
1
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
µAT
A = +25°C
Battery Switchover Threshold
70
mV
Power-Up
VCC – VBATT
50
mV
Power-Down
Battery Switchover Hysteresis
20
mV
BATT ON Output Voltage
0.3
V
ISINK = 3.2 mA
BATT ON Output Short Circuit Current
55
mA
BATT ON = VOUT = 4.5 V Sink Current
0.5
2.5
25
µA
BATT ON = 0 V Source Current
RESET AND WATCHDOG TIMER
Reset Voltage Threshold
ADM8690, ADM8691, ADM8694, ADM8695
4.5
4.65
4.73
V
ADM8692, ADM8693
4.25
4.4
4.48
V
Reset Threshold Hysteresis
40
mV
Reset Timeout Delay
ADM8690, ADM8691, ADM8692, ADM8693
35
50
70
ms
OSC SEL = HIGH
ADM8694, ADM8695
140
200
280
ms
OSC SEL = HIGH
Watchdog Timeout Period, Internal Oscillator
1.0
1.6
2.25
s
Long Period
70
100
140
ms
Short Period
Watchdog Timeout Period, External Clock
3840
4064
4097
Cycles
Long Period
768
1011
1025
Cycles
Short Period
Minimum WDI Input Pulse Width
50
ns
VIL = 0.4, VIH = 3.5 V
RESET Output Voltage @ VCC = +1 V
4
20
mV
ISINK = 10 µA, VCC = 1 V
RESET, LOW LINE Output Voltage
0.05
0.4
V
ISINK = 1.6 mA, VCC = 4.25 V
3.5
V
ISOURCE = 1
µA
RESET, WDO Output Voltage
0.4
V
ISINK = 1.6 mA
3.5
V
ISOURCE = 1 µA
Output Short Circuit Source Current
1
10
25
µA
Output Short Circuit Sink Current
25
mA
WDI Input Threshold
Note 1
Logic Low
0.8
V
Logic High
3.5
V
WDI Input Current
1
10
µA
WDI = VOUT
–10
–1
µA
WDI = 0 V
POWER FAIL DETECTOR
PFI Input Threshold
1.25
1.3
1.35
V
VCC = +5 V
PFI Input Current
–25
±0.01
+25
nA
PFO Output Voltage
0.4
V
ISINK = 3.2 mA
3.5
V
ISOURCE = 1 µA
PFO Short Circuit Source Current
1
3
25
µA
PFI = Low,
PFO = 0 V
PFO Short Circuit Sink Current
25
mA
PFI = High,
PFO = VOUT
CHIP ENABLE GATING
CEIN Threshold
0.8
V
VIL
3.0
V
VIH
CEIN Pull-Up Current
3
µA
CEOUT Output Voltage
0.4
V
ISINK = 3.2 mA
VOUT – 1.5
V
ISOURCE = 3.0 mA
VOUT – 0.05
V
ISOURCE = 1
µA, V
CC = 0 V
CE Propagation Delay
3
7
ns
REV. 0
–2–
(VCC = Full Operating Range, VBATT = +2.8 V, TA = TMIN to
TMAX unless otherwise noted)


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