Product details


Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 1.6 Features Detection time delay, Reset time delay, Separate VDD & Sense, Undervoltage monitor Reset threshold accuracy (%) 2 Output driver type/reset output Active-high, Active-low, Open-drain, Push-pull Time delay (ms) Programmable 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


Qualified for automotive applications:

  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C7B

Designed for high performance:

  • Nano quiescent current: 125 nA (Typ)
  • High threshold accuracy: ±0.5% (Typ)
  • Built-in precision hysteresis (VHYS): 5% (Typ)

Designed for a wide range of applications:

  • Operating voltage range:
    • 0.85 V to 6 V (DL and PL outputs)
    • 1 V to 6 V (PH output)
  • Adjustable threshold voltage: 0.505 V (Typ)
  • Precision voltage and push-button monitor
  • Programmable sense and reset delay
  • Fixed (VIT-) voltage: 0.8 V to 5.4 V in 0.1 V steps

Multiple output topologies / Package type:

  • TPS3899DL-Q1: open-drain, active-low (RESET)
  • TPS3899PL-Q1: push-pull, active-low (RESET)
  • TPS3899PH-Q1: push-pull, active-high (RESET)
  • Package: 1.5-mm × 1.5-mm WSON (DSE)

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The separate VDD and SENSE pins allow for the redundancy sought by high-reliability systems. SENSE is decoupled from VDD and can monitor rail voltages other than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pin. Both CTS and CTR provide delay adjustability on the rising and falling edges of the RESET signals. CTS also functions as a debouncer by ignoring voltage glitches on the monitored voltage rails and operates as a "manual reset" that can be used to force a system reset.

The precision performance, best in-class features in a compact form factor, makes the TPS3899-Q1 an ideal solution for wide ranging automotive and battery-powered / low-power 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
* Data sheet TPS3899-Q1 Nano-Power, Precision Voltage Supervisor, Push-Button Monitor with Programmable Sense and Reset Delay datasheet Apr. 07, 2021
User guide TPS3899EVM Voltage Supervisor User's Guide Sep. 02, 2020

Design & development

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Hardware development

document-generic User guide

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

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