TPS3851-Q1
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
- Functional Safety-Capable
- Input voltage range: VDD = 1.6V to 6.5V
- 0.8% Voltage threshold accuracy
- Low supply current: IDD = 10µA (typical)
- User-programmable watchdog timeout
- Factory programmed precision watchdog and reset timers:
- Manual reset input (MR)
- Open-drain outputs
- Precision undervoltage monitoring:
- Supports common rails from 1.8V to 5.0V
- 4% and 7% undervoltage thresholds available
- 0.5% Hysteresis
- Watchdog disable feature
- Available in a small 3mm × 3mm, 8-Pin VSON package
The TPS3851-Q1 device combines a precision voltage supervisor with a programmable watchdog timer. The TPS3851-Q1 comparator achieves a 0.8% accuracy (–40°C to +125°C) for the undervoltage (VITN) threshold on the VDD pin. The TPS3851-Q1 also includes accurate hysteresis on the undervoltage threshold making the device ideal for use with tight tolerance systems. The supervisor RESET delay features a 15% accuracy, high-precision delay timing.
The TPS3851-Q1 includes a programmable watchdog timer for a wide variety of applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. The watchdog timeouts can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via logic pins to avoid undesired watchdog timeouts during the development process.
The TPS3851-Q1 is available in a small 3.00mm × 3.00mm, 8-pin VSON package. The TPS3851-Q1 features wettable flanks that allow for easy optical inspection.
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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 | TPS3851-Q1 High-Accuracy Voltage Supervisor with Integrated Watchdog Timer datasheet (Rev. B) | PDF | HTML | 2025/7/7 | ||
| 白皮書 | Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) | PDF | HTML | 2024/4/30 | |||
| 功能安全資訊 | TPS3851-Q1 Functional Safety FIT Rate and Failure Mode Distribution | 2019/12/19 | ||||
| 電子書 | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019/6/28 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |