Home Power management Supervisor & reset ICs
Home
Power management
Supervisor & reset ICs

TPS3435

ACTIVE

Nano-quiescent-current precision timeout watchdog timer

Order now
Data sheet

TPS3435

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 1 Features Latching, Manual reset capable, Stand-alone watchdog, Timeout watchdog, Watchdog disable, Watchdog timer 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 Supply voltage (min) (V) 0.7 Supply voltage (max) (V) 6 Rating Automotive, Catalog Watchdog timer WDI (s) Programmable Operating temperature range (°C) -40 to 125
Number of supplies monitored 1 Features Latching, Manual reset capable, Stand-alone watchdog, Timeout watchdog, Watchdog disable, Watchdog timer 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 Supply voltage (min) (V) 0.7 Supply voltage (max) (V) 6 Rating Automotive, Catalog Watchdog timer WDI (s) Programmable Operating temperature range (°C) -40 to 125
SOT-23-THN (DDF) 8 8.12 mm² 2.9 x 2.8 WSON (DSE) 6 2.25 mm² 1.5 x 1.5
  • Factory programmed or user-programmable watchdog timeout
    • ±10% Accurate timer (maximum)
    • Factory programmed: 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
    • On the fly timer extension: 1X to 256X
    • Latched output option
  • MR functionality support
  • Factory programmed or user-programmable watchdog timeout
    • ±10% Accurate timer (maximum)
    • Factory programmed: 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
    • On the fly timer extension: 1X to 256X
    • Latched output option
  • MR functionality support

The TPS3435 is an ultra-low power consumption (250nA typical) device offering a programmable timeout watchdog timer.

The TPS3435 offers a high accuracy timeout watchdog timer with a host of features for a wide variety of applications. The timeout watchdog timer can be factory programmed or user programmed using an external capacitor. The timer value can be changed on-the-fly 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 TPS3435 provides a performance upgrade alternative to TPS3431 device family. The TPS3435 is available in a small 6-pin WSON and 8-pin SOT-23 package.

The TPS3435 is an ultra-low power consumption (250nA typical) device offering a programmable timeout watchdog timer.

The TPS3435 offers a high accuracy timeout watchdog timer with a host of features for a wide variety of applications. The timeout watchdog timer can be factory programmed or user programmed using an external capacitor. The timer value can be changed on-the-fly 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 TPS3435 provides a performance upgrade alternative to TPS3431 device family. The TPS3435 is available in a small 6-pin WSON and 8-pin SOT-23 package.
filter Find other Supervisor & reset ICs
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 4
Type Title Date
* Data sheet TPS3435 Nano IQ Precision Timeout Watchdog Timer datasheet (Rev. A) PDF | HTML 28 Aug 2024
Functional safety information TPS3435/3436/35/36 Pinout A Functional Safety FIT Rate and Failure Mode PDF | HTML 15 Jun 2023
Functional safety information TPS3435/3436/35/36 Pinout B Functional Safety FIT Rate and Failure Mode PDF | HTML 21 Apr 2023
Functional safety information TPS3435/3436/35/36 Pinout C Functional Safety FIT Rate and Failure Mode Distrib PDF | HTML 23 Mar 2023

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS36Q1EVM — TPS36 evaluation module for nano-quiescent-current precision supervisor

The TPS36Q1EVM is an evaluation module (EVM) for the TPS3435-Q1, TPS3436-Q1, TPS35-Q1 and TPS36-Q1 voltage supervisors. This family of automotive-grade products has support for undervoltage-supervisor and watchdog functionality. Please refer to each product's data sheet for specific functions.

(...)

User guide: PDF | HTML
Not available on TI.com
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 (...)
Request
Package Pins CAD symbols, footprints & 3D models
SOT-23-THN (DDF) 8 Ultra Librarian
WSON (DSE) 6 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos