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Gestión de la energía
Supervisor & reset ICs
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TPS388R0-Q1

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Automotive multichannel overvoltage and undervoltage supervisor with I²C

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TPS388R0-Q1

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Detalles del producto

Number of supplies monitored 6 Threshold voltage 1 (typ) (V) 0.2, 0.47, 0.5, 0.53, 0.66, 0.74, 0.75, 0.85, 1, 1.475, 1.68, 1.92, 3.1, 3.5, 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 6 Threshold voltage 1 (typ) (V) 0.2, 0.47, 0.5, 0.53, 0.66, 0.74, 0.75, 0.85, 1, 1.475, 1.68, 1.92, 3.1, 3.5, 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-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
    • ± 6mV threshold accuracy (–40°C to +125°C)
    • Input voltage range: 2.5V to 5.5V
    • Undervoltage lockout (UVLO): 2.48V
    • Low quiescent current (maximum): 200µA in idle mode
    • Configuration of 2 to 8 channels available
    • Fixed window threshold levels
      • 5mV steps from 0.2V to 1.475V
      • 20mV steps from 0.8V to 5.5V
  • Miniature package and minimal component cost
    • 3mm x 3mm QFN package
    • User adjustable glitch immunity via I2C
    • User adjustable voltage threshold levels via I2C
  • Designed for safety applications
    • Active-low open-drain NIRQ output (Latched)
    • Active-low open-drain NRST output (Reset Delay)
    • Cyclic Redundancy Checking (CRC)
    • Packet Error Checking (PEC)
  • 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
    • ± 6mV threshold accuracy (–40°C to +125°C)
    • Input voltage range: 2.5V to 5.5V
    • Undervoltage lockout (UVLO): 2.48V
    • Low quiescent current (maximum): 200µA in idle mode
    • Configuration of 2 to 8 channels available
    • Fixed window threshold levels
      • 5mV steps from 0.2V to 1.475V
      • 20mV steps from 0.8V to 5.5V
  • Miniature package and minimal component cost
    • 3mm x 3mm QFN package
    • User adjustable glitch immunity via I2C
    • User adjustable voltage threshold levels via I2C
  • Designed for safety applications
    • Active-low open-drain NIRQ output (Latched)
    • Active-low open-drain NRST output (Reset Delay)
    • Cyclic Redundancy Checking (CRC)
    • Packet Error Checking (PEC)

The TPS38800-Q1/TPS388R0-Q1 device is an ASIL-B device for a 2 to 8 channel window supervisor IC available in a 16-pin 3mm x 3mm 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.

I2C 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. TPS38800-Q1/TPS388R0-Q1 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.

The TPS38800-Q1/TPS388R0-Q1 device is an ASIL-B device for a 2 to 8 channel window supervisor IC available in a 16-pin 3mm x 3mm 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.

I2C 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. TPS38800-Q1/TPS388R0-Q1 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.
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* Data sheet TPS38800-Q1/TPS388R0-Q1 Multichannel Overvoltage and Undervoltage I2 C Programmable Voltage Supervisor datasheet (Rev. A) PDF | HTML 05 dic 2024

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