參數(shù)資料
型號(hào)： MAX691A
廠商： Maxim Integrated Products, Inc.
英文描述： Microprocessor Supervisory Circuits(帶看門狗復(fù)位、片選和支持備用電池的復(fù)位器)
中文描述： 微處理器監(jiān)控電路
文件頁(yè)數(shù)： 3/16頁(yè)
文件大?。?/td> 164K
代理商： MAX691A
M
Mic roproc essor S upervisory Circ uits
_______________________________________________________________________________________
3
MAX691A, MAX800L
MAX693A, MAX800M
MAX800L, T
A
= +25°C, V
CC
falling
mA
7
20
–————Output Short-Circuit
Current
V
3.5
–————Output Voltage
0.1
0.4
0.004
0.3
ns
100
Minimum Watchdog Input
Pulse Width
Clock
Cycles
1024
Watchdog Timeout Period,
External Clock (Note 4)
4096
ms
70
100
140
Watchdog Timeout Period,
Internal Oscillator
1.0
1.6
2.25
Clock
Cycles
2048
Reset Active Timeout Period,
External Clock (Note 4)
ms
140
200
280
Reset Active Timeout Period,
Internal Oscillator
ns
800
–—O—W——N—-to-–————Delay
μs
80
V
to RESET Delay
CONDITIONS
mV
15
Reset Threshold Hysteresis
V
4.30
4.45
Reset Threshold Voltage
4.55
4.70
4.25
4.40
4.50
4.50
4.65
4.75
UNITS
MIN
TYP
MAX
PARAMETER
RESET AND WATCHDOG TIMER
Output source current
I
SOURCE
= 1.6mA, V
CC
= 5V
I
SINK
= 3.2mA, V
CC
= 4.25V
I
SINK
= 50μA, V
CC
= 1V, VBATT = 0V, V
CC
falling
V
IL
= 0.8V, V
IH
= 0.75 x V
CC
Short Period
Long Period
Short Period
Long period
MAX800M, T
A
= +25°C, V
CC
falling
Power-up
Power-up
Power-down
ELECTRICAL CHARACTERISTICS (continued)
(MAX691A, MAX800L: V
CC
= 4.75V to 5.5V, MAX693A, MAX800M: V
CC
= 4.5V to 5.5V, VBATT = 2.8V, T
A
= T
MIN
to T
MAX
, unless
otherwise noted.)
RESET Output Voltage Low
(Note 5)
I
SINK
= 3.2mA
0.1
0.4
V
I
SINK
= 3.2mA, V
CC
= 4.25V
I
SOURCE
= 1μA, V
CC
= 5V
0.4
–—O—W———N—Output Voltage
3.5
V
–—O—W———N— Output
Short-Circuit Current
Output source current
1
15
100
μA
I
SINK
= 3.2mA
I
SOURCE
= 500μA, V
CC
= 5V
0.4
–W——OOutput Voltage
3.5
V
–W——OOutput
Short-Circuit Current
Output source current
3
10
mA
V
IH
V
IL
WDI = 0V
WDI = V
OUT
0.75 x V
CC
WDI Threshold Voltage
(Note 6)
0.8
V
-50
-10
20
WDI Input Current
50
μA
sec
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX691AC/D 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACPE 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACPE+ 功能描述:監(jiān)控電路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACSE 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACSE+ 功能描述:監(jiān)控電路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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