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TPS389C03-Q1

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

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產品規格表

TPS389C03-Q1

現行
產品規格表 立即訂購

產品詳細資料

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 2023年 10月 5日

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使用指南: PDF | HTML
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開發板

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TPS389C0X 評估模組 (EVM) 是用於評估 TPS389C0x 裝置的平台，此裝置為配備 Q&A 監視系統和 I²C 可編程性，並採用 16 針腳 WQFN 封裝的整合式多通道過電壓和欠電壓監控器。TPS389C0XEVM 評估 3 通道 TPS389C03-Q1 多通道監控器。裝置預設爲預編程 OTP 選項，但可透過 I²C 重新編程以獲得不同的監視計時和不同閾值電壓和容差百分比。EVM 包括 I²C 介面插頭、可建立多軌電壓的 LDO，以及特別放置在 EVM 基板上的跨接器，以提供最大彈性。EVM 設計旨在與 TPS389C0xQ1 的其他變體 (...)
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Q&A Watchdog Answer Table
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TPS389C03-Q1 — Automotive, 3-channel, overvoltage and undervoltage I²C programmable supervisor with Q&A watchdog
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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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