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ADM6821 Datasheet(PDF) 2 Page - Analog Devices

Part No. ADM6821
Description  Low Voltage Supervisory Circuits with Watchdog & Manual Reset in 5-Lead SOT-23
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Maker  AD [Analog Devices]
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ADM6821 Datasheet(HTML) 2 Page - Analog Devices

   
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ADM6821–ADM6825
Preliminary Technical Data
Rev.PrA | Page 2 of 7
ADM6821–ADM6825—SPECIFICATIONS
Table 2. VCC=4. 5V to 5.5V for ADM682_L/M, VCC=2.7V to 3.6V for ADM682_T/S/R, VCC=2.1V to 2.75V for ADM682_Z/Y,
VCC=1.53V to 2.0V for ADM682_W/V, TA=-40°C to +125°C, unless otherwise noted.
Parameter
Min
Typ
Max
Units
Test Conditions/Comments
SUPPLY
VCC Operating Voltage Range
1
5.5
V
TA=0°C to +70°C
1.2
5.5
V
TA=--40°C to +125°C
Supply Current (WDI and MR unconnected)
10
24
µA
VCC=5.5V, no load,
TA=--40°C to +85°C
30
µA
VCC=5.5V, no load,
TA=--40°C to +125°C
7
16
µA
VCC=3.6V, no load,
TA=--40°C to +85°C
25
µA
VCC=3.6V, no load,
TA=--40°C to +125°C
5
12
µA
VCC=3.6V, no load,
TA=--40°C to +85°C
(ADM6825 only)
20
µA
VCC=3.6V, no load,
TA=--40°C to +125°C
(ADM6825 only)
RESET THRESHOLD VOLTAGE
ADM682_L
4.50
4.63
4.75
V
TA=-40°C to +85°C
4.47
4.78
V
TA=-40°C to +125°C
ADM682_M
4.25
4.38
4.50
V
TA=-40°C to +85°C
4.22
4.53
V
TA=-40°C to +125°C
ADM682_T
3.00
3.08
3.15
V
TA=-40°C to +85°C
2.97
3.17
V
TA=-40°C to +125°C
ADM682_S
2.85
2.93
3.00
V
TA=-40°C to +85°C
2.83
3.02
V
TA=-40°C to +125°C
ADM682_R
2.55
2.63
2.70
V
TA=-40°C to +85°C
2.53
2.72
V
TA=-40°C to +125°C
ADM682_Z
2.25
2.32
2.38
V
TA=-40°C to +85°C
2.24
2.40
V
TA=-40°C to +125°C
ADM682_Y
2.12
2.19
2.25
V
TA=-40°C to +85°C
2.11
2.27
V
TA=-40°C to +125°C
ADM682_W
1.62
1.67
1.71
V
TA=-40°C to +85°C
1.61
1.72
V
TA=-40°C to +125°C
ADM682_V
1.52
1.58
1.62
V
TA=-40°C to +85°C
RESET THRESHOLD TEMPERATURE COEFFICIENT
60
ppm/°C
RESET THRESHOLD HYSTERESIS
2x VTH
mV
RESET TIMEOUT PERIOD
140
200
280
ms
100
320
ms
VCC TO RESET DELAY
20
µs
VCC = VTH to (VTH - 100mV)
RESET Output Voltage Low
0.4
V
VCC>=4.25V, ISINK=3.2mA, reset
asserted
0.3
V
VCC>=2.55V, ISINK=1.2mA, reset
asserted
0.3
V
VCC>=1.25V, ISINK=100uA, reset
asserted
0.3
V
VCC>=1.0V, ISINK=50uA, reset
asserted, TA=-40°C to +85°C
RESET Output Voltage High
0.8
×VCC
V
VCC>=4.75V, ISOURCE=800uA,
reset not asserted


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