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參數(shù)資料
| 型號(hào)： | DS1832 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 3.3 Volt MicroMonitor Chip(3.3 V微監(jiān)控芯片) |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, PDIP-8 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 59K |
| 代理商： | DS1832 |
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
μ
–SOP packages available
Industrial temperature range of –40
°
C to +85
°
C
PIN ASSIGNMENT
1
2
3
4
8
7
6
5
V
CC
ST
RST
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
RST
DS1832S 8–PIN SOIC (150 MIL)
See Mech. Drawings Section
DS1232
μ
8–PIN
μ
–SOP (118 MIL)
See Mech. Drawings Section
V
CC
ST
RST
RST
8
7
6
5
1
2
3
4
PBRST
TD
TOL
GND
PIN DESCRIPTION
PBRST
TD
TOL
GND
RST
RST
ST
V
CC
– Pushbutton Reset Input
– Time Delay Set
– Selects 10% or 20% V
CC
Detect
– Ground
– Active High Reset Output
– Active Low Reset Output
– Strobe Input
– 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 V
CC
. When an out–of–tol-
erance condition occurs, an internal power fail signal is
generated which forces the resets to an active state.
When V
CC
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1833 | 5V EconoReset(5V Econo監(jiān)控芯片) |
| DS1834 | Dual EconoReset with Pushbutton(帶復(fù)位按鈕的雙路Econo復(fù)位電路) |
| DS1834A | Dual EconoReset with Pushbutton(帶復(fù)位按鈕的雙路Econo復(fù)位電路) |
| DS1834D | Dual EconoReset with Pushbutton(帶復(fù)位按鈕的雙路Econo復(fù)位電路) |
| DS1836A | 5V MicroManager(5V微管理器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1832+ | 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 |
| DS1832N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
| 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 |
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