LMV7231
- (For VS = 3.3 V ±10%, Typical Unless Otherwise
Noted) - Undervoltage and Overvoltage Detection
- High Accuracy Voltage Reference: 400 mV
- Threshold Accuracy: ±1.5% (Maximum)
- Wide Supply Voltage Range 2.2 V to 5.5 V
- Input and Output Voltage Range Above V+
- Internal Hysteresis: 6 mV
- Propagation Delay: 2.6 µs to 5.6 µs
- Supply Current 7.7 µA Per Channel
- 24-Lead WQFN Package
- Temperature Range: –40°C to +125°C
The LMV7231 device is a 1.5% accurate Hex Window Comparator which can be used to monitor power supply voltages or any other analog output, such as an analog temperature sensor or current-sense amplifier. The device uses an internal 400-mV reference for the comparator trip value. The comparator set points can be set through external resistor dividers. The LMV7231 has 6 outputs (CO1 to CO6) that signal an undervoltage or overvoltage event for each power supply input. An output (AO) is also provided to signal when any of the power supply inputs have an overvoltage or undervoltage event. This ability to signal an undervoltage or overvoltage event for the individual power supply inputs, in addition to an output to signal such an event on any of the power supply inputs, adds unparalleled system protection capability.
The 2.2-V to 5.5-V power supply voltage range, low supply current, and input or output voltage range above V+ make the LMV7231 ideal for a wide range of power supply monitoring applications. Operation is ensured over the 40°C to +125°C temperature range. The device is available in a 24-pin WQFN package.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LMV7231 Hex Window Comparator With 1.5% Precision and 400-mV Reference 数据表 (Rev. F) | PDF | HTML | 2016年 1月 12日 | ||
电子书 | The Signal e-book: 有关运算放大器设计主题的博客文章汇编 | 英语版 | 2018年 1月 31日 | |||
EVM 用户指南 | LMV7231 Evaluation Board | 2012年 1月 27日 |
设计和开发
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LMV7231EVAL — LMV7231 电源时序控制评估模块
This evaluation board contains the LMV7231 Hex Window Comparator and allows for evaluation of the device.
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封装 | 引脚 | 下载 |
---|---|---|
WQFN (RTW) | 24 | 查看选项 |
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