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TPS3430-Q1

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Automotive, window watchdog timer with programmable reset delay

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Data sheet

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TPS3436-Q1 ACTIVE Automotive, nano-quiescent-current precision window watchdog timer Ultra-low power consumption and enhanced watchdog accuracy to the compared device

TPS3430-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Features Watchdog disable, Watchdog timer, Window watchdog Reset threshold accuracy (%) 0 Iq (typ) (mA) 0.01 Output driver type/reset output Active-low, Open-drain Watchdog timer WDI (s) 0.2, Programmable TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Rating Automotive Features Watchdog disable, Watchdog timer, Window watchdog Reset threshold accuracy (%) 0 Iq (typ) (mA) 0.01 Output driver type/reset output Active-low, Open-drain Watchdog timer WDI (s) 0.2, Programmable TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VSON (DRC) 10 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 and watchdog reset delays typical at 25°C
  • Watchdog disable feature
  • User-programmable watchdog timeout
  • User-programmable watchdog reset delay
  • Input voltage range: VDD = 1.6 V to 6.5 V
  • Low supply current: IDD = 10 µA (typical)
  • Open-drain output
  • Small 3-mm × 3-mm, 10-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 and watchdog reset delays typical at 25°C
  • Watchdog disable feature
  • User-programmable watchdog timeout
  • User-programmable watchdog reset delay
  • Input voltage range: VDD = 1.6 V to 6.5 V
  • Low supply current: IDD = 10 µA (typical)
  • Open-drain output
  • Small 3-mm × 3-mm, 10-Pin VSON package
  • Junction operating temperature range: –40°C to +125°C

The TPS3430-Q1 is a standalone automotive window watchdog timer with programmable watchdog window and programmable watchdog reset delay for automotive applications. The TPS3430-Q1 window watchdog achieves 2.5% timing accuracy (typical at 25°C) and the watchdog output ( WDO) reset delay can be set by factory-programmed default delay settings, or programmed by an external capacitor. The watchdog can be disabled via the SET pins to avoid undesired watchdog timeouts during the development process or during power on.

The TPS3430-Q1 is available in a small 3.00-mm × 3.00-mm, 10-pin VSON package. The TPS3430-Q1 features wettable flanks for easy optical inspection.

The TPS3430-Q1 is a standalone automotive window watchdog timer with programmable watchdog window and programmable watchdog reset delay for automotive applications. The TPS3430-Q1 window watchdog achieves 2.5% timing accuracy (typical at 25°C) and the watchdog output ( WDO) reset delay can be set by factory-programmed default delay settings, or programmed by an external capacitor. The watchdog can be disabled via the SET pins to avoid undesired watchdog timeouts during the development process or during power on.

The TPS3430-Q1 is available in a small 3.00-mm × 3.00-mm, 10-pin VSON package. The TPS3430-Q1 features wettable flanks for easy optical inspection.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS3430-Q1 Automotive Window Watchdog Timer with Programmable Reset Delay datasheet (Rev. A) PDF | HTML May 20, 2021
Functional safety information TPS3430-Q1 Functional Safety FIT Rate and Failure Mode Distribution Dec 18, 2019
Application note Open Load Detection and Limp Home Function in BCM Aug 30, 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun 28, 2019

Design & development

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Evaluation board

TPS3430EVM — TPS3430 Window Watchdog Timer With Programmable Reset Delay Evaluation Module

The TPS3430 evaluation module (EVM) is a platform for evaluating the TP3430 device. TPS3430 is a standalone window watchdog timer with programmable window watchdog and programmable reset delay for a wide variety of applications. This device is used to monitor watchdog input from (...)

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