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參數(shù)資料
| 型號(hào)： | DS1831A |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Multisupply Micromonitor |
| 中文描述： | 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件頁(yè)數(shù)： | 4/14頁(yè) |
| 文件大?。?/td> | 206K |
| 代理商： | DS1831A |
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DS1831/A/B
4 of 14
PUSHBUTTON RESET SEQUENCING
Figure 2
NOTE: The
RST
5V
output is connected to the IN
3.3V
via a 100 k resistor in the push-button input and
therefore does not require a pull-up resistor (an addition pull up can be used to accelerate responses). If an
external pull up is used in this example it must be connected to the 3.3V power supply.
OPERATION—PUSHBUTTON RESET
The DS1831 provides three pushbutton inputs for manual reset of the device. Pushbutton inputs for the
3.3V reset, 5V reset, and a master pushbutton reset (DS1831 and DS1831B only) input; provide multiple
options for system control. The 3.3V pushbutton reset and 5V pushbutton resets provide a simple manual
reset for the associated reset output; while the master pushbutton reset forces all resets and NMI outputs
active low.
The 5V reset pushbutton input and the 3.3V reset pushbutton input provide manual reset control input for
each associated reset output. When the output associated with a pushbutton input is not active, a
pushbutton reset can be generated by pulling the associated
PBRST
pin low for at least 20μs. When the
pushbutton is held low the reset will be forced active and will remain active for a reset cycle after the
pushbutton is released. See Figure 2 for an application example that allows a user to sequence the reset
outputs.
A master pushbutton reset cycle can be started if at least one voltage input (IN
5V
, IN
3.3V
, IN1, or IN2) is in
tolerance and at least one output is active. A master pushbutton reset is generated by pulling the
MPBRST
pin low for at least 20μs. When the pushbutton is held low all outputs are forced active and will remain
active for a reset or NMI time delay after the pushbutton is released. The Master Pushbutton input is
pulled high through an internal 100k pull up resistor and debounced via internal circuitry. See Figure 3
for an application example. Figures 4 and 5 for the timing diagram.
The 5V and 3.3V pushbutton reset inputs are pulled high through an internal 100k pull up resistor to the
voltage input, which is associated with that pushbutton. The master pushbutton is pulled to the greater of
the IN
5V
and IN
3.3V
inputs.
RST
5V
PBRST
3.3V
GND
TD
5V
IN
3.3V
IN
5V
RST
3.3V
TOL
3.3V
PBRST
5V
TOL
5V
DS1831
TD
3.3V
5V Supply
3.3V Supply
1
2
3
4
5
16
15
14
13
12
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1831AS | Multisupply Micromonitor |
| DS1831B | Multisupply Micromonitor |
| DS1831BS | Multisupply Micromonitor |
| DPAD1 | Dual Pico Amp Diodes |
| DPAD10 | Dual Pico Amp Diodes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1831A+ | 功能描述:監(jiān)控電路 3.3/5V Multisupply 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(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(kāi)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 |
| DS1831AS | 功能描述:監(jiān)控電路 3.3/5V Multisupply 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(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(kāi)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 |
| DS1831AS/T&R | 制造商:Maxim Integrated Products 功能描述:MULTISUPPLY MONITOR W/WD 16P SO TR - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MULTIMON 5V/3.3V WDOG 16-SOIC |
| DS1831AS/T&R | 功能描述:監(jiān)控電路 3.3/5V Multisupply 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(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(kāi)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 |
| DS1831AS+ | 功能描述:監(jiān)控電路 3.3/5V Multisupply 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(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(kāi)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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