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TPS389006

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Multichannel overvoltage and undervoltage I²C programmable voltage supervisor

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Data sheet

TPS389006

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 6 Threshold voltage 1 (typ) (V) Adjustable, adjustable Features Detection time delay, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Iq (typ) (mA) 1 Output driver type/reset output Open-drain Supply voltage (min) (V) 2.5 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Rating Automotive, Catalog Watchdog timer WDI (s) Programmable Operating temperature range (°C) -40 to 125
Number of supplies monitored 6 Threshold voltage 1 (typ) (V) Adjustable, adjustable Features Detection time delay, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Iq (typ) (mA) 1 Output driver type/reset output Open-drain Supply voltage (min) (V) 2.5 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Rating Automotive, Catalog Watchdog timer WDI (s) Programmable Operating temperature range (°C) -40 to 125
WQFN (RTE) 16 9 mm² 3 x 3
  • Functional Safety-Compliant
    • Development target for Functional Safety applications
    • Documentation to aid IEC 61508 system design
    • Systematic capability up to SIL 3
    • Hardware capability up to SIL 3
  • Monitor state-of-the art SOCs
    • ±6 mV threshold accuracy (–40°C to +125°C)
    • Input voltage range: 2.5 V to 5.5 V
    • Undervoltage lockout (UVLO): 2.48 V
    • Low standby quiescent current: 200 µA
    • 6 channels with 2 remote sense
    • Fixed window threshold levels
      • 5 mV steps from 0.2 V to 1.475 V
      • 20 mV steps from 0.8 V to 5.5 V
  • Miniature solution and minimal component cost
    • 3 mm x 3 mm QFN package
    • Adjustable glitch immunity via I 2C
    • User adjustable voltage threshold levels via I 2C
  • Designed for safety applications
    • Active-low open-drain NIRQ output
    • Built-in 8-bit ADC for real-time voltage readouts
    • Cyclic Redundancy Checking (CRC)
    • Packet Error Checking (PEC)
    • Sequence and fault logging
  • Sync function for rail tagging
  • Functional Safety-Compliant
    • Development target for Functional Safety applications
    • Documentation to aid IEC 61508 system design
    • Systematic capability up to SIL 3
    • Hardware capability up to SIL 3
  • Monitor state-of-the art SOCs
    • ±6 mV threshold accuracy (–40°C to +125°C)
    • Input voltage range: 2.5 V to 5.5 V
    • Undervoltage lockout (UVLO): 2.48 V
    • Low standby quiescent current: 200 µA
    • 6 channels with 2 remote sense
    • Fixed window threshold levels
      • 5 mV steps from 0.2 V to 1.475 V
      • 20 mV steps from 0.8 V to 5.5 V
  • Miniature solution and minimal component cost
    • 3 mm x 3 mm QFN package
    • Adjustable glitch immunity via I 2C
    • User adjustable voltage threshold levels via I 2C
  • Designed for safety applications
    • Active-low open-drain NIRQ output
    • Built-in 8-bit ADC for real-time voltage readouts
    • Cyclic Redundancy Checking (CRC)
    • Packet Error Checking (PEC)
    • Sequence and fault logging
  • Sync function for rail tagging

The TPS389006 device is a SIL-3 compliant six-channel window supervisor IC with two remote sense pins available in a 16-pin 3 mm x 3 mm QFN package. This high accuracy multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have narrow margin supply tolerances.

Remote sense pins enable a highly accurate voltage measurement on the high current core rail by accounting for voltage drop across PCB traces. I 2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. The internal glitch immunity and noise filters eliminate the need for external RC components to reduce false resets resulting from power transients. In addition, device does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further optimizes overall accuracy, cost, solution size, and improves reliability for safety systems.

This device offers CRC error checking, sequence logging during turn ON or turn OFF, and a built-in ADC for voltage readouts to provide redundant error checking. In addition, TPS389006 offers a sync feature for tagging rails as they come up. The TPS389006 device also pairs with TI’s power-supply sequencer TPS38700 to ensure proper power-on sequence in addition to voltage monitoring for SIL-3 level compliance.

The TPS389006 device is a SIL-3 compliant six-channel window supervisor IC with two remote sense pins available in a 16-pin 3 mm x 3 mm QFN package. This high accuracy multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have narrow margin supply tolerances.

Remote sense pins enable a highly accurate voltage measurement on the high current core rail by accounting for voltage drop across PCB traces. I 2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. The internal glitch immunity and noise filters eliminate the need for external RC components to reduce false resets resulting from power transients. In addition, device does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further optimizes overall accuracy, cost, solution size, and improves reliability for safety systems.

This device offers CRC error checking, sequence logging during turn ON or turn OFF, and a built-in ADC for voltage readouts to provide redundant error checking. In addition, TPS389006 offers a sync feature for tagging rails as they come up. The TPS389006 device also pairs with TI’s power-supply sequencer TPS38700 to ensure proper power-on sequence in addition to voltage monitoring for SIL-3 level compliance.
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* Data sheet TPS389006 Multichannel Overvoltage and Undervoltage I2C Programmable Voltage Supervisor and Monitor datasheet PDF | HTML 12 Aug 2021
EVM User's guide TPS389387EVM Joint Evaluation Module (Rev. A) PDF | HTML 09 Feb 2024
Application note Power Supply Design for AMD Versal™ AI Edge Series PDF | HTML 29 Jan 2024

Design & development

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Evaluation board

TPS389006Q1EVM — TPS389006 evaluation module for multichannel, overvoltage and undervoltage, I²C voltage supervisor

The TPS389006Q1 evaluation module (EVM) is a platform for evaluating the six-channel TPS389006-Q1, which is an integrated overvoltage and undervoltage supervisor with I2C programmability. TPS389006-Q1 is available in a 16-pin very-thin quad flatpack no-lead (WQFN) package. In addition, (...)

User guide: PDF | HTML
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Evaluation board

TPS389387EVM — TPS389006 and TPS38700S-Q1 joint evaluation module

The TPS389387EVM demonstrates the functionality of the TPS38700S-Q1 sequencer and TPS389006 voltage monitoring device, evaluates sync function between both devices and is capable of providing a 12 channel programmable power supply. The devices default to preprogrammed settings but the I²C (...)
User guide: PDF | HTML
Not available on TI.com
Calculation tool

TPS38900X-THRESHOLD-VOLTAGE-TOOL — TPS38900x threshold voltage tool

Multi-Channel Threshold Voltage Tool
Supported products & hardware

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Supervisor & reset ICs
TPS389006 — Multichannel overvoltage and undervoltage I²C programmable voltage supervisor TPS389006-Q1 — Automotive multichannel overvoltage and undervoltage I²C programmable voltage supervisor and monitor
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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 (...)
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