TPS3842
- Wide supply voltage range: 1.9V to 42V
- VDD, SENSE, and RESET are rated to 42V
- Low quiescent current: 850nA (typical)
- High threshold accuracy: 0.5% (typical)
- Fixed internal threshold voltages: 2.7V to 9.5V
- Adjustable voltage variant: 0.7V
- Capacitor adjustable delay time with CTR pin
- Capacitor adjustable de-glitch time with CTS pin
- Undervoltage open-drain, active-low output
- Overvoltage open-drain, active-low and active-high output
- Temperature range: –40°C to 125°C
- Small size: SOT5X3 (DRL)
The TPS3842 is a 42V voltage supervisor with 850nA IDD, 0.5% accuracy, and a fast detection time. This device directly connects to 12V / 24V voltage rail for continuous monitoring of undervoltage (UV) or overvoltage (OV) conditions. The TPS3842 comes in a small DRL package for size constrained applications. Built-in hysteresis on the SENSE pin prevents false reset signals when monitoring a supply voltage rail. 1%, 5%, and 10% hysteresis voltage options are available to offer design flexibility to support voltage transients.
SENSE is decoupled from VDD and can monitor higher and lower voltages than VDD. Fixed threshold variants provide accurate low-Iq voltage monitoring. Adjustable threshold variants offer flexible undervoltage threshold setting with external resistors. TPS3842 offers capacitor programmable de-glitch on the SENSE with the CTS pin and capacitor programmable reset delay timing with the CTR pin.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS3842 42V Small Size, 850nA Undervoltage or Overvoltage Supervisor With Programmable Delay and De-Glitch datasheet (Rev. B) | PDF | HTML | 2025/10/1 | ||
| 功能安全資訊 | TPS3842 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2025/8/26 |
設計與開發
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TPS3842EVM — TPS3842 評估模組
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-5X3 (DRL) | 6 | Ultra Librarian |