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TPS388C0-Q1

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Automotive multichannel overvoltage and undervoltage supervisor with I²C and window watchdog

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Data sheet

TPS388C0-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Number of supplies monitored 6 Threshold voltage 1 (typ) (V) 0.9, 1.08, 1.1, 1.3, 1.6, 3, 3.6, Adjustable Features Detection time delay, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor, Window watchdog Reset threshold accuracy (%) 0.6 Iq (typ) (mA) 0.2 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 2.5 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Operating temperature range (°C) -40 to 125
Rating Automotive Number of supplies monitored 6 Threshold voltage 1 (typ) (V) 0.9, 1.08, 1.1, 1.3, 1.6, 3, 3.6, Adjustable Features Detection time delay, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor, Window watchdog Reset threshold accuracy (%) 0.6 Iq (typ) (mA) 0.2 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 2.5 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Operating temperature range (°C) -40 to 125
WQFN (RTE) 16 9 mm² 3 x 3
  • ASIL-B Functional Safety-Compliant product
    • Development target for Functional Safety applications
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL B
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C
  • Monitor state-of-the art SoCs
    • Available in 2 to 6 voltage monitor channel options
    • Input voltage range: 2.6V to 5.5V
    • Undervoltage lockout (UVLO) (falling): 2.6V
    • High threshold accuracy:
      • ±6mV (–40°C to +125°C)
    • Fixed window threshold levels
      • 5mV steps from 0.2V to 1.475V
      • 20mV steps from 0.8V to 5.5V
  • Trigger Window Watchdog
    • Programmable OPEN/CLOSE watchdog timing via I2C (1ms to 864ms)
    • Start-up delay for SoC boot up initialization (2ms to 3.48s)
    • Programmable maximum violation count (up to 7 errors) before WDO assertion
    • Programmable WDO Delay
    • Watchdog disable pin (WDE)
  • Miniature package and minimal component cost
    • 3mm x 3mm QFN package
    • User adjustable voltage threshold levels via I2C
    • User adjustable glitch immunity and hysteresis levels via I2C
  • Designed for safety applications
    • CRC Error Check (static and dynamic)
    • Active-low open-drain NIRQ, NRST, and WDO outputs
  • ASIL-B Functional Safety-Compliant product
    • Development target for Functional Safety applications
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL B
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C
  • Monitor state-of-the art SoCs
    • Available in 2 to 6 voltage monitor channel options
    • Input voltage range: 2.6V to 5.5V
    • Undervoltage lockout (UVLO) (falling): 2.6V
    • High threshold accuracy:
      • ±6mV (–40°C to +125°C)
    • Fixed window threshold levels
      • 5mV steps from 0.2V to 1.475V
      • 20mV steps from 0.8V to 5.5V
  • Trigger Window Watchdog
    • Programmable OPEN/CLOSE watchdog timing via I2C (1ms to 864ms)
    • Start-up delay for SoC boot up initialization (2ms to 3.48s)
    • Programmable maximum violation count (up to 7 errors) before WDO assertion
    • Programmable WDO Delay
    • Watchdog disable pin (WDE)
  • Miniature package and minimal component cost
    • 3mm x 3mm QFN package
    • User adjustable voltage threshold levels via I2C
    • User adjustable glitch immunity and hysteresis levels via I2C
  • Designed for safety applications
    • CRC Error Check (static and dynamic)
    • Active-low open-drain NIRQ, NRST, and WDO outputs

The TPS388C0x-Q1 device is an integrated multichannel window monitor reset IC with remote sense pin options and integrated window watchdog available in a 16-pin 3mm x 3mm QFN package.

This highly accurate multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have marginal supply tolerances. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals. This TPS388C0x-Q1 device does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further optimizes overall accuracy, cost, size, and improves reliability for safety systems. I2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. This device offers CRC error checking. The device has a built in window watchdog with independent watchdog enable.

This device has a low typical quiescent current specification of 1500µA (typical). The TPS388C0x-Q1 is designed for automotive applications and is qualified for AEC-Q100 Grade 1 and qualified as a functional safety compliant device with ASIL-B rating.

The TPS388C0x-Q1 device is an integrated multichannel window monitor reset IC with remote sense pin options and integrated window watchdog available in a 16-pin 3mm x 3mm QFN package.

This highly accurate multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have marginal supply tolerances. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals. This TPS388C0x-Q1 device does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further optimizes overall accuracy, cost, size, and improves reliability for safety systems. I2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. This device offers CRC error checking. The device has a built in window watchdog with independent watchdog enable.

This device has a low typical quiescent current specification of 1500µA (typical). The TPS388C0x-Q1 is designed for automotive applications and is qualified for AEC-Q100 Grade 1 and qualified as a functional safety compliant device with ASIL-B rating.
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* Data sheet TPS388C0x-Q1 Multichannel Overvoltage and Undervoltage I2 C Programmable Voltage Supervisor and Monitor with Window Watchdog datasheet PDF | HTML 02 Apr 2025

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