TPS3839
- Ultralow Supply Current: 150 nA (Typical)
- Operating Supply Voltage: 0.9 V to 6.5 V
- Valid Reset for VDD > 0.6 V
- Push-Pull RESET Output
- Factory-Trimmed Reset Threshold Voltages
- Temperature Range: –40°C to 85°C
- Packages: 1-mm × 1-mm X2SON or 3-Pin SOT23
The TPS3831 and TPS3839 devices (both referred to as TPS383x) are ultralow current (150 nA, typical), voltage supervisory circuits that monitor a single voltage. Both devices initiate an active-low reset signal whenever the VDD supply voltage drops below the factory-trimmed reset threshold voltage. The reset output remains low for 200 ms (typical) after the VDD voltage rises above the threshold voltage and hysteresis. These devices are designed to ignore fast transients on the VDD pin. The TPS3831 device includes a manual reset input that forces RESET low when MR is low.
The ultralow current consumption of 150 nA makes these voltage supervisors ideal for use in low-power and portable applications. The TPS383x devices are specified to have the correct output logic state for supply voltages down to 0.6 V.
The TPS383x devices feature precision factory-trimmed threshold voltages and extremely low-power operation. The TPS3831 device is available in a 4-pin, 1-mm × 1-mm (DQN) X2SON package. The TPS3839 device is available in a 3-pin SOT23 (DBZ) package or a 4-pin, 1-mm × 1-mm (DQN) X2SON package.
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技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor 数据表 (Rev. D) | PDF | HTML | 2015年 7月 1日 | ||
应用手册 | Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) | 2020年 3月 17日 | ||||
选择指南 | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020年 2月 28日 | ||||
技术文章 | Tips and tricks for optimizing your voltage supervisor | PDF | HTML | 2017年 3月 7日 | |||
应用手册 | Using Voltage Supervisor for Input Over-Voltage Protection in LED Drivers | 2013年 5月 20日 | ||||
应用手册 | Using the TPS3839/1yxx as an Adjustable Supply Voltage Supervisor | 2012年 8月 16日 |
设计和开发
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
SOT-23 (DBZ) | 3 | Ultra Librarian |
X2SON (DQN) | 4 | Ultra Librarian |
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