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参数资料
| 型号： | DS1831AS/T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/14页 |
| 文件大小： | 0K |
| 描述： | IC MULTIMON 5V/3.3V WDOG 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | MicroMonitor™ |
| 类型： | 多压监控器 |
| 监视电压数目： | 3 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 10 ms；100 ms；1,000 ms |
| 电压 - 阀值： | 3.3V，5V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
DS1831/A/B
PUSHBUTTON RESET SEQUENCING Figure 2
5V Supply
3.3V Supply
IN 5V
RST 5V
TOL 5V
TD 5V
PBRST 5V
1
2
3
4
5
16
DS1831 15
14
13
12
IN 3.3V
RST 3.3V
TOL 3.3V
TD 3.3V
PBRST 3.3V
GND
NOTE: The RST 5V output is connected to the IN 3.3V via a 100 k W 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 I N2) is i n
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 W 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 W 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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1831B | 功能描述:监控电路 3.3/5V Multisupply MicroMonitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| DS1831B+ | 功能描述:监控电路 3.3/5V Multisupply MicroMonitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| DS1831BS | 功能描述:监控电路 3.3/5V Multisupply MicroMonitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| DS1831BS/T&R | 制造商:Maxim Integrated Products 功能描述:MULTISUPPLY MONITOR W/STAT 16-SO TR - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MULTIMN 5/3.3V WDOG PB 16SOIC |
| DS1831BS/T&R | 功能描述:监控电路 3.3/5V Multisupply MicroMonitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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