TPS3430-Q1

ACTIVE

Automotive, window watchdog timer with programmable reset delay

A newer version of this product is available

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Product details

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 Supply voltage (min) (V) 1.6 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 Watchdog disable, Watchdog timer, Window watchdog Reset threshold accuracy (%) 0 Iq (typ) (mA) 0.01 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 1.6 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 (DRC) 10 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 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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Type Title Date
* Data sheet TPS3430-Q1 Automotive Window Watchdog Timer with Programmable Reset Delay datasheet (Rev. A) PDF | HTML 20 May 2021
Functional safety information TPS3430-Q1 Functional Safety FIT Rate and Failure Mode Distribution 18 Dec 2019
Application note Open Load Detection and Limp Home Function in BCM 30 Aug 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 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 (...)

User guide: PDF
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Calculation tool

SNVC223 TPS343x Timing Calculator

Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TPS3430 Window watchdog timer with programmable reset delay TPS3430-Q1 Automotive, window watchdog timer with programmable reset delay TPS3431 Standard programmable watchdog timer with enable TPS3431-Q1 Automotive, standard programmable watchdog timer with enable
Hardware development
Evaluation board
TPS3430EVM TPS3430 Window Watchdog Timer With Programmable Reset Delay Evaluation Module TPS3431EVM TPS3431 Standard Programmable Watchdog Timer With Enable Evaluation Module
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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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VSON (DRC) 10 View options

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