Product details


Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) Adjustable Features Detection Time Delay, Reset Time Delay, Separate VDD & Sense Reset threshold accuracy (%) 2 Output driver type/reset output Active-high, Active-low, Open-drain, Push-pull Time delay (ms) Progammable Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 125 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

WSON (DSE) 6 2 mm² 1.5 x 1.5 open-in-new Find other Supervisor & reset ICs


  • Supply voltage monitor and push-button monitor
  • VDD range: 0.7 V to 6 V
  • Programmable sense and reset delay
  • Nano quiescent current: 125 nA (typ)
  • High threshold accuracy: ±0.5% (typ)
  • Precision hysteresis: 5% (typ)
  • Adjustable threshold voltage: 0.51 V (typ)
  • Multiple output topologies
    • DL: open-drain active-low
    • PL: push-pull active-low
    • PH: push-pull active-high
  • Temperature range: –40°C to +125°C
  • Package: 1.5-mm × 1.5-mm WSON

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The TPS3899 is a nano-Iq, precision voltage supervisor that monitors system voltages or push-button inputs as low as 0.51 V. When the voltage of SENSE drops below the VIT- threshold, RESET/RESET will toggle after the programmed sense delay, set by CTS, has been reached. The TPS3899 asserts an open-drain or push-pull RESET/RESET signal to active-low logic (RESET) or active-high logic (RESET). The RESET/RESET output remains active until the SENSE voltage returns above the rising voltage threshold (VIT- + VHYS) for the reset delay set by CTR. The TPS3899 family uses a precision reference to achieve ±1% threshold accuracy. The sense delay and reset delay time can be user-adjusted by connecting a capacitor to the CTS and CTR pins respectively. The TPS3899 has a nano quiescent current of 125 nA (typ) and is available in a small 1.5-mm × 1.5-mm WSON package, making the device well-suited for battery-powered and space-constrained applications. The device is fully specified over a temperature range of –40°C to +125°C (TA).

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Technical documentation

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Type Title Date
* Datasheet TPS3899 Nano 125 nA IQ, 1% Accurate Voltage Supervisor, Push-Button Monitor with Programmable Sense and Reset Delay datasheet Sep. 10, 2020
Application note Voltage Monitoring with Programmable Reset Assertion Timing Using the TPS3899 Sep. 24, 2020
More literature TPS3899EVM EU Declaration of Conformity (DoC) Sep. 03, 2020
User guide TPS3899EVM Voltage Supervisor User's Guide Sep. 02, 2020

Design & development

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Hardware development


The TPS3899 evaluation module (EVM) is a platform for evaluating the TPS3899 product, which is a 6-pin voltage supervisor and reset IC. TPS3899 offers operation up to 6 V, while maintaining a low quiescent current of 1.2 µA (max) in addition to 2% maximum accuracy.

TPS3899EVM supports all device (...)

  • 6-pin very very thin small-outline no-lead (WSON) package
  • Fixed/programmable sense and reset delay
  • Nanopower supply current
  • Open-drain/push-pull output topology
  • Push-button monitor

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

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WSON (DSE) 6 View options

Ordering & quality

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