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參數資料
| 型號： | ADM805M |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Microprocessor Supervisory Circuits |
| 中文描述： | 微處理器監控電路 |
| 文件頁數： | 2/8頁 |
| 文件大小： | 327K |
| 代理商： | ADM805M |
ADM690A/ADM692A/ADM802L/M/ADM805L/M–SPECIFICATIONS
(V
CC
= 4.75 V to 5.5 V (ADM690A/ADM802L/ADM805L), V
CC
= 4.5 V to 5.5 V, (ADM692A/ADM802M/ADM805M), V
BATT
= +2.8 V, T
A
= T
MIN
to T
MAX
unless otherwise noted)
–2–
REV. 0
Parameter
Min
Typ
Max
Units
Test Conditions/Comments
V
CC
/V
BATT
OPERATION
1
V
CC
Operating Voltage Range
Supply Current (Excludes I
OUT
)
Supply Current in Battery Backup Mode
Battery Standby Current
(+ = Discharge, – = Charge)
V
OUT
Output Voltage
1.0
5.5
100
1.0
V
μ
A
μ
A
70
0.05
V
CC
= 0 V, V
BATT
= 2.8 V
5.5 V > V
CC
> V
BATT
+ 0.2 V
–0.1
V
CC
– 0.02
V
CC
– 0.5
+0.02
μ
A
V
V
V
V
V
CC
– 0.01
V
CC
– 0.05
V
CC
– 0.02
V
BATT
– 0.002
I
OUT
= 5 mA
I
OUT
= 50 mA
I
OUT
= 250 mA
I
OUT
= 250
μ
A, V
CC
< V
BATT
– 0.2 V
V
OUT
in Battery Backup Mode
V
BATT
– 0.05
Battery Switchover Threshold
20
–20
40
mV
mV
mV
Power Up
Power Down
Battery Switchover Hysteresis
RESET THRESHOLD
Reset Voltage Threshold
ADM690A, ADM802L, ADM805L
ADM692A, ADM802M, ADM805M
ADM802L
ADM802M
Reset Threshold Hysteresis
Reset Timeout Delay
RESET
Output Voltage
4.5
4.25
4.55
4.30
4.65
4.4
4.75
4.5
4.7
4.45
V
V
V
V
mV
ms
V
V
V
V
V
V
T
A
= 25
°
C, V
CC
Falling
T
A
= 25
°
C, V
CC
Falling
40
200
140
V
CC
– 1.5
280
I
SOURCE
= 800
μ
A
I
SINK
= 3.2 mA
I
SINK
= 100
μ
A, V
CC
= 1 V
I
SOURCE
= 4
μ
A, V
CC
= 1.1 V
ADM805L/M, I
SOURCE
= 800
μ
A
ADM805L/M, I
SINK
= 3.2 mA
0.4
0.3
RESET Output Voltage
0.8
V
CC
– 1.5
0.4
WATCHDOG TIMER
Watchdog Timeout Period
WDI Input Pulse Width
WDI Input Threshold
Logic Low
Logic High
WDI Input Current
1.0
50
1.6
2.25
s
ns
V
IL
= 0.4, V
IH
= 0.8 (V
CC
)
0.8
V
V
μ
A
μ
A
3.5
10
WDI = V
CC
WDI = 0 V
–10
POWER FAIL DETECTOR
PFI Input Threshold
1.20
1.225
–25
V
CC
– 1.5
1.25
1.25
0.01
1.30
1.275
+25
V
V
nA
V
V
ADM690A, ADM692A, ADM805L/M
ADM802L/M
PFI Input Current
PFO
Output Voltage
I
SOURCE
= 800
μ
A
I
SINK
= 3.2 mA
0.4
NOTES
1
Either V
CC
or V
BATT
can be 0 V if the other > +2.0 V.
Specifications subject to change without notice.
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