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Product details

Parameters

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) 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

Features

  • Precision voltage and push-button monitor
  • VDD range: 0.85 V to 6 V ( DL and PL outputs)
  • VDD range: 1 V to 6 V ( PH output)
  • Programmable sense and reset delay
  • Nano quiescent current: 125 nA (typ)
  • High threshold accuracy: ±0.5% (typ)
  • Precision hysteresis: 5% (typ)
  • Adjustable threshold voltage: 0.505 V (typ)
  • Fixed threshold voltage: 0.8 V to 5.4 V
    • Fixed threshold level available in 100 mV steps
  • 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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Description

The TPS3899 is a nano power, precision voltage supervisor with ±0.5% threshold accuracy and programmable sense and reset time delay in a 6-pin space saving 1.5 mm x 1.5 mm WSON package. The TPS3899 is a feature-rich voltage supervisor that offers the smallest total solution size in its class. Built-in hysteresis along with programmable delay prevent false reset signals when monitoring a voltage rail or push button signals.

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 an ideal solution for wide ranging industrial and battery-powered applications such as Factory/Building Automation, Motor Drives, and consumer products. 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-Power, Precision Voltage Supervisor, Push-Button Monitor with Programmable Sense and Reset Delay datasheet (Rev. A) Nov. 17, 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

EVALUATION BOARD Download
document-generic User guide
20
Description

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 (...)

Features
  • 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

SIMULATION MODEL Download
SLVMDI2.ZIP (21 KB) - PSpice Model
SIMULATION TOOL Download
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 (...)
Features
  • 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

Package Pins Download
WSON (DSE) 6 View options

Ordering & quality

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  • Ongoing reliability monitoring

Support & training

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