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TPS3436

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Product details

Rating Automotive Number of supplies monitored 1 Features Latching, Manual reset capable, Stand-alone watchdog, Timeout watchdog, Watchdog disable, Watchdog timer, Window watchdog Iq (typ) (mA) 0.00025 Output driver type/reset output Active-low, Open-drain, Push-Pull Time delay (ms) 1, 5, 10, 20, 50, 100, 200 Watchdog timer WDI (s) Programmable TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Rating Automotive Number of supplies monitored 1 Features Latching, Manual reset capable, Stand-alone watchdog, Timeout watchdog, Watchdog disable, Watchdog timer, Window watchdog Iq (typ) (mA) 0.00025 Output driver type/reset output Active-low, Open-drain, Push-Pull Time delay (ms) 1, 5, 10, 20, 50, 100, 200 Watchdog timer WDI (s) Programmable TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
SOT-23-THN (DDF) 8 8.12 mm² (2.9 mm × 2.8 mm)
  • Factory programmed or user-programmable watchdog timeout
    • ±10% accurate timer (maximum)
    • Factory programmed close window: 1ms to 100s
  • Factory programmed or user-programmable reset delay
    • ±10% Accurate timer (maximum)
    • Factory programmed option: 2ms to 10s
  • Input voltage range: VDD = 1.04V to 6.0V
  • Ultra low supply current: IDD = 250nA (typical)
  • Open-drain, push-pull; active-low outputs
  • Various programmability options:
    • Watchdog enable-disable
    • Watchdog startup delay: no delay to 10s
    • Open window to close window ratio option: 1X to 511X
    • Latched output option
  • MR functionality support
  • Factory programmed or user-programmable watchdog timeout
    • ±10% accurate timer (maximum)
    • Factory programmed close window: 1ms to 100s
  • Factory programmed or user-programmable reset delay
    • ±10% Accurate timer (maximum)
    • Factory programmed option: 2ms to 10s
  • Input voltage range: VDD = 1.04V to 6.0V
  • Ultra low supply current: IDD = 250nA (typical)
  • Open-drain, push-pull; active-low outputs
  • Various programmability options:
    • Watchdog enable-disable
    • Watchdog startup delay: no delay to 10s
    • Open window to close window ratio option: 1X to 511X
    • Latched output option
  • MR functionality support

The TPS3436 is an ultra-low-power consumption (250nA typical) device offering a programmable window watchdog timer.

The TPS3436 offers a high accuracy window watchdog timer with host of features for a wide variety of applications. The close window timer can be factory programmed or user programmed using an external capacitor. The open window to close window ratio can change unpremeditatedly using a combination of logic pins. The watchdog also offers unique features such as enable-disable, start-up delay.

The WDO delay can be set by factory-programmed default delay settings or programmed by an external capacitor. The device also offers a latched output operation where the output is latched until the watchdog fault is cleared.

The TPS3436 provides a performance upgrade alternative to the TPS3430 device family. The TPS3436 is available in small 6-pin WSON and 5-pin and 8-pin SOT-23 package.

The TPS3436 is an ultra-low-power consumption (250nA typical) device offering a programmable window watchdog timer.

The TPS3436 offers a high accuracy window watchdog timer with host of features for a wide variety of applications. The close window timer can be factory programmed or user programmed using an external capacitor. The open window to close window ratio can change unpremeditatedly using a combination of logic pins. The watchdog also offers unique features such as enable-disable, start-up delay.

The WDO delay can be set by factory-programmed default delay settings or programmed by an external capacitor. The device also offers a latched output operation where the output is latched until the watchdog fault is cleared.

The TPS3436 provides a performance upgrade alternative to the TPS3430 device family. The TPS3436 is available in small 6-pin WSON and 5-pin and 8-pin SOT-23 package.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS3436 Nano IQ Precision Window Watchdog Timer datasheet (Rev. A) PDF | HTML Oct 26, 2026
Functional safety information TPS3435/3436/35/36 Pinout A Functional Safety FIT Rate and Failure Mode PDF | HTML Jun 15, 2023
Functional safety information TPS3435/3436/35/36 Pinout B Functional Safety FIT Rate and Failure Mode PDF | HTML Apr 21, 2023
Functional safety information TPS3435/3436/35/36 Pinout C Functional Safety FIT Rate and Failure Mode Distrib PDF | HTML Mar 23, 2023

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SOT-23-THN (DDF) 8 Ultra Librarian

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