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Reset & watchdog ICs

TPS3430

ACTIVE

Window watchdog timer with programmable reset delay

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Data sheet

TPS3430

ACTIVE
Data sheet Order now

Product details

Rating Catalog 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 Supply voltage (min) (V) 1.6 Supply voltage (max) (V) 6.5 Operating temperature range (°C) -40 to 125
Rating Catalog 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 Supply voltage (min) (V) 1.6 Supply voltage (max) (V) 6.5 Operating temperature range (°C) -40 to 125
VSON (DRC) 10 9 mm² 3 x 3
  • 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
  • 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 is a standalone window watchdog timer with programmable watchdog window and programmable watchdog reset delay for a wide variety of applications. The TPS3430 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 is available in a small 3.00-mm × 3.00-mm, 10-pin VSON package.

The TPS3430 is a standalone window watchdog timer with programmable watchdog window and programmable watchdog reset delay for a wide variety of applications. The TPS3430 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 is available in a small 3.00-mm × 3.00-mm, 10-pin VSON package.
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Technical documentation

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Type Title Date
* Data sheet TPS3430 Window Watchdog Timer with Programmable Reset Delay datasheet (Rev. A) PDF | HTML 01 Oct 2021
Application note Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) 17 Mar 2020
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
Technical article Voltage supervisor requirements for e-meter applications PDF | HTML 18 Jan 2019
Technical article Improve circuit breaker leakage current response with a voltage supervisor PDF | HTML 10 Jan 2019
Application brief Latching a Watchdog Timer 26 Aug 2018

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
Reset & watchdog 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
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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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