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TPS3431-Q1

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具有啟用功能的車用標準可編程看門狗定時器

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TPS3431-Q1

現行
產品規格表 立即訂購

產品詳細資料

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 Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 6.5 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (s) 0.2, Programmable Operating temperature range (°C) -40 to 125
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 Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 6.5 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (s) 0.2, Programmable Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3
  • 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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類型 標題 日期
* Data sheet TPS3431-Q1 Automotive Standard Programmable Watchdog Timer with Enable datasheet (Rev. A) PDF | HTML 2021年 5月 20日
Functional safety information TPS3431-Q1 Functional Safety FIT Rate and Failure Mode Distribution 2019年 12月 18日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日

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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

The TPS3431 evaluation module (EVM) is a platform for evaluating the TP3431 device. TPS3431 is a standard programmable watchdog timer with an enable feature for a wide variety of applications. This device is used to monitor a watchdog input from a MCU and trigger a watchdog output if a (...)

使用指南: PDF
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計算工具

SNVC223 — TPS343x Timing Calculator

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產品
監控器和重設 IC
TPS3430 — 具有可編程重設延遲功能的窗口看門狗計時器 TPS3430-Q1 — 具有可編程重設延遲功能的車用窗口看門狗計時器 TPS3431 — 具有啟用功能的標準可編程看門狗定時器 TPS3431-Q1 — 具有啟用功能的車用標準可編程看門狗定時器
硬體開發
開發板
TPS3430EVM — 具有可編程重設延遲功能的 TPS3430 窗口監視計時器 TPS3431EVM — 具有啟用功能的 TPS3431 標準可編程監視計時器評估模組
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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