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參數(shù)資料
| 型號(hào)： | DS1832N |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8 |
| 封裝： | 0.300 INCH, DIP-8 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 59K |
| 代理商： | DS1832N |
DS1832
3.3 Volt MicroMonitor Chip
DS1832
062698 1/7
FEATURES
Halts and restarts an out–of–control microprocessor
Holds microprocessor in check during power tran-
sients
Automatically restarts microprocessor after power
failure
Monitors pushbutton for external override
Accurate 10% or 20% microprocessor power
monitoring
Eliminates need for discrete components
20% tolerance for use with 3.0 volt systems
Pin compatible with the DS1232
Low cost 8–pin DIP, 8–pin SOIC, and space saving
–SOP packages available
Industrial temperature range of –40°C to +85°C
PIN ASSIGNMENT
1
2
3
4
8
7
6
5
VCC
ST
RST
PBRST
TD
TOL
GND
DS1832 8–PIN DIP (300 MIL)
See Mech. Drawings Section
1
2
3
4
5
6
7
8
TD
TOL
GND
PBRST
VCC
ST
RST
DS1832S 8–PIN SOIC (150 MIL)
See Mech. Drawings Section
DS1232
8–PIN –SOP (118 MIL)
See Mech. Drawings Section
VCC
ST
RST
8
7
6
5
1
2
3
4
PBRST
TD
TOL
GND
PIN DESCRIPTION
PBRST
– Pushbutton Reset Input
TD
– Time Delay Set
TOL
– Selects 10% or 20% VCC Detect
GND
– Ground
RST
– Active High Reset Output
RST
– Active Low Reset Output
ST
– Strobe Input
VCC
– Power Supply
DESCRIPTION
The DS1832 3.3 Volt MicroMonitor monitors three vital
conditions for a microprocessor: power supply, soft-
ware execution, and external override. First, a precision
temperature–compensated reference and comparator
circuit monitors the status of VCC. When an out–of–tol-
erance condition occurs, an internal power fail signal is
generated which forces the resets to an active state.
When VCC returns to an in–tolerance condition, the
reset signals are kept in the active state for a minimum
of 250 ms to allow the power supply and processor to
stabilize.
The second function the DS1832 performs is pushbut-
ton reset control. The DS1832 debounces the pushbut-
ton input and guarantees an active reset pulse width of
250 ms minimum. The third function is a watchdog
timer. The DS1832 has an internal timer that forces the
reset signals to the active state if the strobe input is not
driven low prior to time–out. The watchdog timer func-
tion can be set to operate on time–out settings of
approximately 150 ms, 600 ms, or 1.2 seconds.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1832S | 功能描述:監(jiān)控電路 3.3V MicroMonitor 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 |
| DS1832S/T&R | 制造商:Maxim Integrated Products 功能描述:3.3V MICROMONITOR 8PIN SOIC-T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MICROMONITOR 3.3V 8-SOIC |
| DS1832S/T&R | 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 |
| DS1832S+ | 功能描述:監(jiān)控電路 3.3V MicroMonitor 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 |
| DS1832S+T&R | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.88V 35UA 8SOIC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:3.3 VOLT MICRO MONTIOR CHIP 制造商:Maxim Integrated Products 功能描述:IC MICROMONITOR 3.3V 8-SOIC 制造商:Maxim Integrated Products 功能描述:Supervisory Circuits 3.3V MicroMonitor |
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