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.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TLV840 Low Voltage Supervisor with Adjustable Reset Time Delay and Manual Reset datasheet (Rev. C) | 2020年 8月 13日 | |
| Technical article | Three reasons to add a voltage supervisor to your next wearable power design | PDF | HTML | 2021年 6月 17日 | |
| Application note | Back-up Power Supply Switchover with Supply Voltage Supervisor & Power & Power M | 2020年 4月 9日 | ||
| Application note | Programmable Push-Button, Pulse Detector, and Pulse Generator Solutions | 2020年 3月 10日 | ||
| Selection guide | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020年 2月 28日 | ||
| EVM User's guide | TLV840EVM Voltage Supervisor User's Guide | 2020年 2月 13日 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 |
設計與開發
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TLV840EVM — 具有可調整復位時間延遲的低電壓監控器的 TLV840 評估模組
The TLV840 evaluation module (EVM) is designed to evaluate the performance of the TLV840 product, which is a 5-pin voltage supervisor and reset IC. TLV840 offers operation up to 6 V, while maintaining low quiescent current of 1.2 µA (max) in addition to 2% maximum accuracy.
TLV840EVM supports (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點