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TPS3431-Q1

現行

具有啟用功能的車用標準可編程看門狗定時器

現在提供此產品的更新版本

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產品詳細資料

Rating Automotive Features Timeout watchdog, Watchdog disable, Watchdog timer Reset threshold accuracy (%) 0 Iq (typ) (mA) 0.01 Output driver type/reset output Active-low, Open-drain Time delay (ms) 200 Watchdog timer WDI (s) 0.2, Programmable TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Rating Automotive Features Timeout watchdog, Watchdog disable, Watchdog timer Reset threshold accuracy (%) 0 Iq (typ) (mA) 0.01 Output driver type/reset output Active-low, Open-drain Time delay (ms) 200 Watchdog timer WDI (s) 0.2, Programmable TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² (3 mm × 3 mm)
  • 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
  • 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.

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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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

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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。

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SNVC223 — TPS343x Timing Calculator

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VSON (DRB) 8 Ultra Librarian

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