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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 164K |
| 代理商： | MAX691A |
M
Mic roproc essor S upervisory Circ uits
4
_______________________________________________________________________________________
MAX69_AC/AE/AM, V
CC
= 5V
MAX800_C/E, V
CC
= 5V
μA
μA
0.10
10
±5
100
OSC IN Leakage Current
OSC IN Input Pull-Up Current
μs
12
RESET-to-–—OUT Delay
INTERNAL OSCILLATOR
2.7
–—OUT Output Voltage High
(Reset Active)
3.5
ns
6
10
–—IN-to-–—OUT Propagation
Delay (Note 8)
mA
0.1
0.75
2.0
–—OUT Short-Circuit Current
(Reset Active)
75
150
–—IN-to-–—OUT Resistance
(Note 7)
μA
±0.005
±1
–—IN Leakage Current
60
PFI-to-PFO Delay
μs
25
μA
1
15
100
–——OOutput Short-Circuit
Current
CONDITIONS
3.5
–——OOutput Voltage
V
0.4
nA
±0.01
±25
PFI Leakage Current
1.225
1.25
1.275
PFI Input Threshold
V
1.2
1.25
1.3
UNITS
MIN
TYP
MAX
PARAMETER
OSC SEL = 0V
OSC SEL = V
OUT
or floating, OSC IN = 0V
Power-down
V
CC
= 0V, VBATT = 2.8V, I
OUT
= 1μA
V
CC
= 5V, I
OUT
= -100μA
50
source impedance driver, C
LOAD
= 50pF
Disable mode, –—OUT = 0V
Enable mode
Disable mode
I
SOURCE
= 1μA, V
CC
= 5V
I
SINK
= 3.2mA
V
IN
= 20mV, V
OD
= 15mV
V
IN
= -20mV, V
OD
= 15mV
Output source current
Note 1:
Either V
CC
or VBATT can go to 0V, if the other is greater than 2.0V.
Note 2:
The supply current drawn by the MAX691A/MAX800L/MAX800M from the battery excluding I
OUT
typically goes to 10μA
when (VBATT - 1V) < V
CC
< VBATT. In most applications, this is a brief period as V
CC
falls through this region.
Note 3:
“+” = battery-discharging current, “--” = battery-charging current.
Note 4:
Although presented as typical values, the number of clock cycles for the reset and watchdog timeout periods are fixed and
do not vary with process or temperature.
Note 5:
RESET is an open-drain output and sinks current only.
Note 6:
WDI is internally connected to a voltage divider between V
OUT
and GND. If unconnected, WDI is driven to 1.6V (typ),
disabling the watchdog function.
Note 7:
MAX693A/MAX800M. C—IN = C—OUT = V
CC
= 4.75V for the MAX691A/MAX800L and V
CC
= 4.5V for the
Note 8:
The chip-enable propagation delay is measur/ 2.
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.)
kHz
50
OSC IN Frequency Range
μA
10
100
OSC SEL Input Pull-Up Current
OSC SEL = 0V
V
IH
V
IL
OSC SEL = 0V
V
V
OUT
- 0.4
V
OUT
- 0.6
3.65
2.00
OSC IN External Oscillator
Threshold Voltage
kHz
100
OSC IN Frequency with
External Capacitor
OSC SEL = 0V, COSC = 47pF
V
POWER-FAIL COMPARATOR
CHIP-ENABLE GATING
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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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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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