TLV840
- Operating voltage range : 0.7 V to 6 V
- Nano supply current : 120 nA (Typical)
- Fixed threshold voltage (VIT-): 0.8 V to 5.4 V
- Threshold voltages available in 100mV steps
- High accuracy: ±0.5% (Typical)
- Built-in hysteresis (VHYS): 5% (Typical)
- Reset time delay (tD): capacitor-based programmable (TLV840C, TLV840M)
- Minimum time delay: 40 µs (typical) without capacitor
- Active-low manual reset (MR) (TLV840M)
- Four output topologies:
- TLV840xxDL: open-drain, active-low (RESET)
- TLV840xxPL: push-pull, active-low (RESET)
- TLV840xxDH: open-drain, active-high (RESET)
- TLV840xxPH: push-pull, active-high (RESET)
- Wide temperature range: –40°C to +125°C
- Package: SOT23-5 (DBV)
The TLV840 family of voltage supervisors or reset ICs can operate at high voltage levels while maintaining very low quiescent current across the whole VDD and temperature range. TLV840 offers best combination of low power consumption, high accuracy and low propagation delay (tp_HL= 30 µs typical).
Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (VIT-). Reset signal is cleared when VDD rise above VIT- plus hysteresis (VHYS) and the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between the CT pin and ground for TLV840C and TLV840M. For a minimum reset delay time the CT pin can be left floating. TLV840N does not offer a programmable delay and offers fixed reset delay timing options: 40 µs, 2 ms, 10 ms, 30 ms, 50 ms, 80 ms, 100 ms, 150 ms, 200 ms.
Additional features: Low power-on reset voltage (VPOR), built-in glitch immunity protection for VDD, built-in hysteresis, low open-drain output leakage current (Ilkg(OD)). TLV840 is a perfect voltage monitoring solution for industrial applications and battery-powered / low-power applications.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | TLV840 低压监控器,带可调复位时间延迟和手动复位 数据表 (Rev. C) | 2020年 8月 13日 | |||
技术文章 | Three reasons to add a voltage supervisor to your next wearable power design | PDF | HTML | 2021年 6月 17日 | |||
应用手册 | Back-up Power Supply Switchover with Supply Voltage Supervisor & Power & Power M | 2020年 4月 9日 | ||||
应用手册 | Programmable Push-Button, Pulse Detector, and Pulse Generator Solutions | 2020年 3月 10日 | ||||
选择指南 | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020年 2月 28日 | ||||
EVM 用户指南 | TLV840EVM Voltage Supervisor User's Guide | 2020年 2月 13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 (DBV) | 5 | Ultra Librarian |
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