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Product details

Parameters

Number of supplies monitored 4 Threshold voltage 1 (Typ) (V) Adjustable Features Active-low enable, Manual reset, Negative voltage monitoring, Undervoltage and overvoltage monitor, Watchdog timer Reset threshold accuracy (%) 1 Output driver type/reset output Active-low, Open-drain Time delay (ms) 20, 300, Programmable Rating Catalog Watchdog timer WDI (sec) 0.6 Operating temperature range (C) -40 to 125 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

VQFN (RGP) 20 16 mm² 4 x 4 open-in-new Find other Supervisor & reset ICs

Features

  • Four Independent Voltage Supervisors
  • Channel 1:
    • Adjustable Threshold Down to 0.4 V
    • Manual Reset (MR) Input
  • Channels 2, 3:
    • Adjustable Threshold Down to 0.4 V
  • Channel 4:
    • Adjustable Threshold at Any Positive or Negative Voltage
    • Window Comparator
  • Adjustable Delay Time: 1.4 ms to 10 s
  • Threshold Accuracy: 0.25% Typical
  • Very Low Quiescent Current: 11 µA Typical
  • Watchdog Timer With Dedicated Output
  • Well-Controlled Output During Power Up
  • TPS386000: Open-Drain RESETn and WDO
  • TPS386040: Push-Pull RESETn and WDO
  • Package: 4-mm × 4-mm, 20-Pin VQFN

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Description

The TPS3860x0 family of supply voltage supervisors (SVSs) can monitor four power rails that are greater than 0.4 V and one power rail less than 0.4 V (including negative voltage) with a 0.25% (typical) threshold accuracy. Each of the four supervisory circuits (SVS-n) assert a RESETn or RESETn output signal when the SENSEm input voltage drops below the programmed threshold. With external resistors, the threshold of each SVS-n can be programmed (where n = 1, 2, 3, 4 and m = 1, 2, 3, 4L, 4H).

Each SVS-n has a programmable delay before releasing RESETn or RESETn. The delay time can be set independently for each SVS from 1.4 ms to 10 s through the CTn pin connection. Only SVS-1 has an active-low manual reset (MR) input; a logic-low input to MR asserts RESET1 or RESET1.

SVS-4 monitors the threshold window using two comparators. The extra comparator can be configured as a fifth SVS to monitor negative voltage with voltage reference output VREF.

The TPS3860x0 has a very low quiescent current of 11 µA (typical) and is available in a small, 4-mm x 4-mm, VQFN-20 package.

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Technical documentation

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Type Title Date
* Datasheet TPS386000 and TPS386040 Quad Supply Voltage Supervisors With Adjustable Delay and Watchdog Timer datasheet (Rev. F) Oct. 03, 2018
Selection guides Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) Feb. 28, 2020
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Application notes Creating a Sequencing Voltage Supervisor (Reset IC) Using TPS386000 and LM3880 May 14, 2019
Application notes Voltage and Processor Monitoring Solutions in Factory Automation and Control App May 02, 2019
Application notes Comparing Voltage and Processor Monitoring Solutions Apr. 05, 2019
Technical articles Tips and tricks for optimizing your voltage supervisor Mar. 07, 2017
Application notes Analog Applications Journal 4Q 2014 Oct. 24, 2014
Application notes Power-supply sequencing for FPGAs Oct. 24, 2014
Technical articles Develop a more efficient energy grid power supply Jun. 07, 2014
Technical articles Don’t underestimate the power of an LDO Oct. 19, 2013
Technical articles How to optimize your DSP power budget Oct. 03, 2013
Application notes Optimizing Resistor Dividers at a Comparator (Rev. A) Jun. 03, 2013
Application notes Setting the SVS Voltage Monitor Threshold May 23, 2012
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
User guides TPS3860xxEVM-736 User's Guide Mar. 29, 2011
User guides User's Guide for the TPS386000 and TPS386040 EVM Sep. 10, 2009

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$20.00
Description
The TPS386000EVM-736 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS386000 quad supply voltage supervisor in a 20-pin QFN package. The TPS386000EVM-736 can be customized by changing resistor values to monitor any voltage greater than 0.4 V, including (...)
Features
  • 4 complete SVS modules on 1 silicon platform
  • Programmable delay time: 1.4 ms to 10 s
  • Very-low quiescent current: 12 µA (typical)
  • Threshold accuracy: 0.25% (typical)
  • SVS-1: manual reset (MR) input
  • SVS-1,2,3: adjustable threshold down to 0.4 V
  • SVS-4: adjustable threshold at any positive or negative voltage (...)

Reference designs

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TIDEP0022 Implementation of BiSS C Master protocol on Industrial Communication Sub-System (PRU-ICSS). The design provides full documentation and source code for Programmable Realtime Unit (PRU).
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ARM MPU with Integrated HIPERFACE DSL Master Interface Reference Design
TIDEP0035 Implementation of HIPERFACE DSL Master protocol on Industrial Communication Sub-System (PRU-ICSS). The two wire interface allows for integration of position feedback wires into motor cable.  Complete solution consists of AM437x PRU-ICSS firmware and TIDA-00177 transceiver reference design.
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REFERENCE DESIGNS Download
EnDat 2.2 System Reference Design
TIDEP0050 The TIDEP0050 TI Design implements the EnDat 2.2 Master protocol stack and hardware interface solution based on the HEIDENHAIN EnDat 2.2 standard for position or rotary encoders. The design is composed of the EnDat 2.2 Master protocol stack, half-duplex communications using RS485 transceivers and (...)
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