現在提供此產品的更新版本
功能相同,但針腳輸出與所比較的裝置不同。
TPS3431-Q1
- AEC-Q100 qualified
for automotive applications:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Functional safety-capable
- Factory-programmed precision watchdog timers:
- ±2.5% Accurate watchdog timeout (WDT) typical at 25°C
- Watchdog disable feature
- User-programmable watchdog timeout
- Input voltage range: VDD = 1.8 V to 6.5 V
- Low quiescent current: IDD = 10 µA (typical)
- Active-low open-drain output
- Enable input (EN) and enable output (ENOUT)
- Available in a small 3-mm × 3-mm, 8-pin VSON package
- Junction operating temperature range: –40°C to +125°C
The TPS3431-Q1 is a standard automotive programmable watchdog timer with an enable feature for automotive applications. The watchdog timeout features a 15% accuracy, high-precision timing (–40°C to +125°C) and 2.5% typical at 25°C. The watchdog timeout can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via the Enable pin or the SET logic pins to avoid undesired watchdog timeouts during the development process.
The TPS3431-Q1 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package. The TPS3431-Q1 features wettable flanks 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 | TPS3431-Q1 Automotive Standard Programmable Watchdog Timer with Enable datasheet (Rev. A) | PDF | HTML | 2021/5/20 | ||
| 功能安全資訊 | TPS3431-Q1 Functional Safety FIT Rate and Failure Mode Distribution | 2019/12/18 | ||||
| 電子書 | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019/6/28 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS3431EVM — 具有啟用功能的 TPS3431 標準可編程監視計時器評估模組
TPS3431 評估模組 (EVM) 是用於評估 TPS3431 產品的平台。TPS3431 是一款標準可編程看門狗定時器,具有適用於各種應用的啟用功能。此裝置用於監控 MCU 的看門狗輸入,並在看門狗逾時期間未達脈衝時,將觸發看門狗輸出。看門狗逾時和延遲可透過 CWD 接腳上的電容器進行編程。TPS3431 也配備 SET1 接腳和 / 或 EN 接腳的看門狗停用功能。
SNVC223 — TPS343x Timing Calculator
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |