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TPS389006

現行

多通道過電壓和欠電壓 I²C 可編程電壓監控器

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產品規格表

TPS389006

現行
產品規格表 立即訂購

產品詳細資料

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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類型 標題 日期
* Data sheet TPS389006 Multichannel Overvoltage and Undervoltage I2C Programmable Voltage Supervisor and Monitor datasheet PDF | HTML 2021年 8月 12日
EVM User's guide TPS389387EVM Joint Evaluation Module (Rev. A) PDF | HTML 2024年 2月 9日
Application note Power Supply Design for AMD Versal™ AI Edge Series PDF | HTML 2024年 1月 29日

設計與開發

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開發板

TPS389006Q1EVM — 適用於多通道、過電壓和欠電壓、I²C 電壓監控器的 TPS389006 評估模組

TPS389006Q1 評估模組(EVM) 是評估六通道 TPS389006-Q1 的平台，是一款具 I2C 可編程性的整合式過電壓和欠電壓監控器。TPS389006-Q1 採用 16 接腳極纖薄四方扁平無引線 (WQFN) 封裝。此外，TPS389006Q1EVM 的設計可與 TPS38900x-Q1 (四通道和八通道) 其他變體搭配使用。如需詳細資訊請參閱使用指南。

TPS389006Q1EVM 可對多個 EVM 提供菊鏈功能，以進行多通道電壓監控。TPS389006-Q1 預設為預先編程單次可編程 (OTP) 選項，但 I2C 可針對不同臨界電壓和公差百分比重新編程 IC。

(...)

使用指南: PDF | HTML
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開發板

TPS389387EVM — TPS389006 與 TPS38700S-Q1 聯合評估模組

TPS389387EVM 展示了 TPS38700S-Q1 序列器和 TPS389006 電壓監控裝置的功能，可評估兩部裝置之間的同步功能，並提供 12 通道可編程電源供應。裝置預設為預先編程設定，但 I²C 可針對不同的臨界電壓、公差百分比和電源序列重新編程 IC。評估模組 (EVM) 包括 I²C 介面插頭，以及特別放置在 EVM 電路板上的跨接器和表頭，以提供最大彈性。EVM 設計為可搭配 MSP-EXP430FR2355 MSP430FR2355 LaunchPad ™ 使用，以提供 12 通道可編程電源供應。如需詳細資訊請參閱使用指南。
使用指南: PDF | HTML
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計算工具

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

Multi-Channel Threshold Voltage Tool
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監控器和重設 IC
TPS389006 — 多通道過電壓和欠電壓 I²C 可編程電壓監控器 TPS389006-Q1 — 車用多通道過電壓和欠電壓 I²C 可編程電壓監控器和監測器
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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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