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參數(shù)資料
| 型號： | MAX6821ZUK-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Low-Voltage SOT23 レP Supervisors with Manual Reset and Watchdog Timer |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 167K |
| 代理商： | MAX6821ZUK-T |
M
Low-Voltage SOT23 μP Supervisors with
Manual Reset and Watchdog Timer
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +4.5V to +5.5V for MAX682_L/M, V
CC
= +2.7V to +3.6V for MAX682_T/S/R, V
CC
= +2.1V to +2.75V for MAX682_Z/Y, V
CC
=
+1.53V to +2.0V for MAX682_W/V, T
A
= -40
°
C to +125
°
C, unless otherwise specified. Typical values are at T
A
= +25
°
C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
T
A
= -40
°
C to +85
°
C
Reset Timeout Period
t
RP
T
A
= -40
°
C to +125
°
C
V
CC
≥
1.0V, I
SINK
= 50μA, reset asserted,
T
A
= 0
°
C to
+85
°
C
V
CC
≥
1.2V, I
SINK
= 100μA, reset asserted
V
CC
≥
2.55V, I
SINK
= 1.2mA, reset asserted
V
CC
≥
4.25V, I
SINK
= 3.2mA, reset asserted
V
CC
≥
1.8V, I
SOURCE
= 200μA, reset not
asserted
Note 1:
Over-temperature limits are guaranteed by design and not production tested. Devices tested at T
A
= +25
°
C.
Note 2:
Guaranteed by design and not production tested.
MIN
140
100
TYP
200
MAX
280
320
UNITS
ms
0.3
0.3
0.3
0.4
RESET
Output LOW
(Push-Pull or Open-Drain)
V
OL
V
0.8
V
CC
V
CC
≥
3.15V, I
SOURCE
= 500μA, reset not
asserted
0.8
V
CC
RESET
Output HIGH
(Push-Pull Only)
V
OH
V
CC
≥
4.75V, I
SOURCE
= 800μA, reset not
asserted
0.8
V
CC
V
Open-Drain
RESET
Output
Leakage Current (Note 1)
I
LKG
V
CC
> V
TH
,
RESET
not asserted
1.0
μA
V
CC
≥
1.0V, I
SOURCE
= 1μA, reset asserted,
T
A
= 0
°
C to
+85
°
C
V
C C
≥
1.50V I
SOURCE
= 100μA, r eset asser ed
V
CC
≥
2.55V I
SOURCE
= 500μA, r eset asser ed
V
CC
≥
4.25V I
SOURCE
= 800μA, r eset asser ed
V
CC
≥
1.8V I
SINK
= 500μA, r eset not asser ed
V
CC
≥
3.15V I
SINK
= 1.2m A, r eset not asser ed
V
CC
≥
4.75V I
S N K
= 3.2m A, r eset not asser ed
0.8
V
CC
0.8
V C C
0.8
V C C
0.8
V C C
RESET Output HIGH
(Push-Pull Only)
V
OH
V
0.3
0.3
0.4
RE S E T Outp ut LO W
( P ush- P ul Onl y)
V OL
V
MANUAL RESET INPUT (MAX6821/MAX6822/MAX6823/MAX6825)
V
IL
V
IH
0.3
V
CC
MR
Input Voltage
0.7
V
CC
1
V
MR
Minimum Input Pulse
MR
Glitch Rejection
MR
to Reset Delay
MR
Pullup Resistance
WATCHDOG INPUT (MAX6821/MAX6822/MAX6823/MAX6824)
μs
ns
ns
k
100
200
50
25
75
T
A
= -40
°
C to
+85
°
C
T
A
= -40
°
C to
+125
°
C
1.12
0.80
50
1.60
2.40
2.60
Watchdog Timeout Period
t
WD
s
WDI Pulse Width (Note 2)
t
WDI
V
IL
V
IH
ns
0.3
V
CC
WDI Input Voltage
0.7
V
CC
V
WDI = V
CC
, time average
WDI = 0, time average
120
-15
160
WDI Input Current
I
WDI
-20
μA
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