ADM705/ADM706/ADM707/ADM708
SPECIFICATIONS
VCC = 4.75 V to 5.5 V, TA = TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
POWER SUPPLY
VCC Operating Voltage Range
Supply Current
1.0
5.5
V
190
250
μA
LOGIC OUTPUT
Reset Threshold
4.5
4.25
4.65
4.40
40
4.75
4.50
V
V
ADM705/ADM707
ADM706/ADM708
Reset Threshold Hysteresis
RESET PULSE WIDTH
mV
ms
V
160
200
280
RESET OUTPUT VOLTAGE
VCC − 1.5
ISOURCE = 800 μA
0.4
0.3
0.3
V
ISINK = 3.2 mA
V
VCC = 1 V, ISINK = 50 μA
V
VCC = 1.2 V, ISINK = 100 μA
ADM707/ADM708, ISOURCE = 800 μA
ADM707/ADM708, ISINK = 1.2 mA
VIL = 0.4 V, VIH = VCC × 0.8, WDI = VCC
RESET OUTPUT VOLTAGE
VCC − 1.5
V
0.4
V
WATCHDOG TIMEOUT PERIOD (tWD
)
1.00
50
1.60
2.25
sec
ns
WDI Pulse Width (tWP
)
WATCHDOG INPUT
WDI Input Threshold
Logic Low
0.8
V
Logic High
3.5
V
WDI Input Current
50
150
μA
μA
V
WDI = 0 V
−150
−50
WDI = 0 V
WDO OUTPUT VOLTAGE
VCC − 1.5
ISOURCE = 800 μA
ISINK = 1.2 mA
0.4
V
MANUAL RESET INPUT
MR Pull-Up Current
MR Pulse Width
100
150
250
600
μA
ns
MR = 0 V
MR INPUT THRESHOLD
Logic Low
0.8
V
2.0
V
Logic High
MR TO RESET OUTPUT DELAY
POWER-FAIL INPUT
PFI Input Threshold
PFI Input Current
250
ns
1.2
1.25
1.3
V
−25
+0.01
+25
nA
V
PFO OUTPUT VOLTAGE
V
CC − 1.5
ISOURCE = 800 μA
ISINK = 3.2 mA
0.4
V
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