TPS3840
- Wide operating voltage: 1.5 V to 10 V
- Nano supply current: 300 nA (Typ), 700 nA (Max)
- Fixed threshold voltage (VIT-)
- Threshold from 1.6 V to 4.9 V in 0.1-V steps
- High accuracy: 1% (Typ), 1.5% (Max)
- Built-in hysteresis (VIT+)
- 1.6 V < VIT- ≤ 3.0 V = 100 mV (Typical)
- 3.1 V ≤ VIT- < 4.9 V = 200 mV (Typical)
- Start-up delay (tSTRT): 220 µs (Typ), 350 µs (Max)
- Programmable reset time delay (tD):
- 50 µs (no capacitor) to 6.2 s (10-µF)
- Active-low manual reset (MR)
- Three output topologies:
- TPS3840DL: open-drain, active-low (RESET), requires pull-up resistor
- TPS3840PL: push-pull, active-low (RESET)
- TPS3840PH: push-pull, active-high (RESET)
- Wide temperature range: –40°C to +125°C
- Package: SOT23-5 (DBV)
Wide Vin allows monitoring 9V rails or batteries without external components and 24V rails with external resistors. Nano-Iq extends battery life for low power applications and minimizes current consumption when using external resistors. Fast start-up delay allows the detection of a voltage fault before the rest of the system powers up providing maximum safety in hazardous start-up fault conditions. Low Power-on-Reset (VPOR) prevents false resets, premature enable or turn-on of next device, and proper transistor control during power-up and power-down.
Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (VIT-) or when manual reset (MR) is pulled to a low logic (VMR_L). Reset signal is cleared when VDD rise above VIT- plus hysteresis (VIT+) and manual reset is floating or above VMR_H and the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between CT pin and ground. For a fast reset CT pin can be left floating.
Additional features: Built-in glitch immunity protection for MR and VDD, built-in hysteresis, low open-drain output leakage current (ILKG(OD)).
技術文件
設計與開發
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TPS3840EVM — TPS3840 奈米功率高輸入電壓監控器評估模組
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在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
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| 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