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TPS389C03-Q1

ACTIVO

Automotive, 3-channel, overvoltage and undervoltage I²C programmable supervisor with Q&A watchdog

Detalles del producto

Number of supplies monitored 3 Threshold voltage 1 (typ) (V) adjustable Features Detection time delay, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 0.5 Iq (typ) (mA) 1 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 Rating Automotive Operating temperature range (°C) -40 to 125
Number of supplies monitored 3 Threshold voltage 1 (typ) (V) adjustable Features Detection time delay, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 0.5 Iq (typ) (mA) 1 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 Rating Automotive Operating temperature range (°C) -40 to 125
WQFN (RTE) 16 9 mm² 3 x 3
  • ASIL-D functional safety-compliant
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL D
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C7B
  • Q&A Watchdog to monitor SoC software operation
    • Programmable OPEN/CLOSE watchdog timing via I 2C (1 ms to 864 ms)
    • Start-up delay for SoC boot up initialization (2 ms to 3.46 s)
    • Programmable maximum violation count (up to 7) before WDO assertion
    • Watchdog disable pin (WDE)
  • Monitor state-of-the art SOCs
    • 3 channels with 3 remote sense ( TPS389C03-Q1)
    • Input voltage range: 2.6 V to 5.5 V
    • Undervoltage lockout (UVLO): 2.6 V
    • High threshold accuracy:
    • ± 5 mV (–40°C to +125°C)
    • Built-in ADC for voltage readouts
    • Fixed window threshold levels
      • 5 mV steps from 0.2 V to 1.475 V
      • 20 mV steps in other ranges
  • Miniature solution and minimal component cost
    • 3 mm x 3 mm QFN package
    • User adjustable voltage threshold levels via I 2C
    • User adjustable glitch immunity and hysteresis levels via I 2C
  • Designed for safety applications
    • Error Signal Monitoring (ESM)
      • Programmable ESM delay via I 2C (1 ms to 864 ms)
    • Cyclic Redundancy Checking (CRC)
    • Packet Error Checking (PEC)
    • Active-low open-drain NIRQ, NRST, and WDO outputs
  • ASIL-D functional safety-compliant
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL D
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C7B
  • Q&A Watchdog to monitor SoC software operation
    • Programmable OPEN/CLOSE watchdog timing via I 2C (1 ms to 864 ms)
    • Start-up delay for SoC boot up initialization (2 ms to 3.46 s)
    • Programmable maximum violation count (up to 7) before WDO assertion
    • Watchdog disable pin (WDE)
  • Monitor state-of-the art SOCs
    • 3 channels with 3 remote sense ( TPS389C03-Q1)
    • Input voltage range: 2.6 V to 5.5 V
    • Undervoltage lockout (UVLO): 2.6 V
    • High threshold accuracy:
    • ± 5 mV (–40°C to +125°C)
    • Built-in ADC for voltage readouts
    • Fixed window threshold levels
      • 5 mV steps from 0.2 V to 1.475 V
      • 20 mV steps in other ranges
  • Miniature solution and minimal component cost
    • 3 mm x 3 mm QFN package
    • User adjustable voltage threshold levels via I 2C
    • User adjustable glitch immunity and hysteresis levels via I 2C
  • Designed for safety applications
    • Error Signal Monitoring (ESM)
      • Programmable ESM delay via I 2C (1 ms to 864 ms)
    • Cyclic Redundancy Checking (CRC)
    • Packet Error Checking (PEC)
    • Active-low open-drain NIRQ, NRST, and WDO outputs

The TPS389C03-Q1 device is an integrated multichannel window monitor reset IC with three remote sense pins available in a 16 pin 3 mm x 3 mm QFN package.

This highly accurate multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals. This TPS389C03-Q1 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. I 2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. This device offers CRC error checking and a built-in ADC for voltage readouts to provide redundant error checking. The device has a built in Q&A watchdog and Error Signal monitor with independent watchdog enable and watchdog output.

The TPS389C03-Q1 device is an integrated multichannel window monitor reset IC with three remote sense pins available in a 16 pin 3 mm x 3 mm QFN package.

This highly accurate multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals. This TPS389C03-Q1 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. I 2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. This device offers CRC error checking and a built-in ADC for voltage readouts to provide redundant error checking. The device has a built in Q&A watchdog and Error Signal monitor with independent watchdog enable and watchdog output.

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* Data sheet TPS389C03-Q1Multichannel Overvoltage and Undervoltage I2C Programmable Voltage Supervisor and Monitor with Q&A Watchdog datasheet (Rev. D) PDF | HTML 05 oct 2023

Diseño y desarrollo

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Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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