产品详细信息

Number of supplies monitored 2, 3, 4 Threshold voltage 1 (Typ) (V) 3.3, 1.8, 1.15 Features Push-button, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 1 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0.02, 1, 5, 10, 20, 35, 50, 100, 150, 200, 400, 800, 1200 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 125
Number of supplies monitored 2, 3, 4 Threshold voltage 1 (Typ) (V) 3.3, 1.8, 1.15 Features Push-button, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 1 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0.02, 1, 5, 10, 20, 35, 50, 100, 150, 200, 400, 800, 1200 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 125
SOT-23-THN (DDF) 8 8 mm² 2.9 x 2.8
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C7B
  • Designed for high performance and safety:
  • Input current (4 channels): IDD = 15 µA maximum
  • High threshold accuracy: ±0.25% typical, ±1% maximum
  • Built-in precision hysteresis: VHYS (VIT > 800 mV) = 0.75% typical
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL A
    • Self test - manual setup
  • Designed for a wide range of applications:
  • Input voltage range, VDD = 1.7 V to 6V
  • Quad, triple, dual, or single voltage supervisor
  • Each channel highly configurable
    • Window (OV, UV), UV-only, OV-only options
    • Window tolerance: ±3% to ±11%
    • High threshold resolution: VIT ≤ 0.8 V: 20-mV steps VIT > 0.8 V: Lower of 0.5% or 20-mV steps
  • Push-button monitor on all channels
  • Reset time delay (tD): Fixed time delay options
    • Options: 23 fixed time options ranging from 20 µs minimum to 1200 ms maximum
  • Multiple output topologies, package type:
  • TPS3704xxxO-Q1:open-drain, active-low (RESET)
  • TPS3704xxxL-Q1: push-pull, active-low (RESET)
  • TPS3704xxxH-Q1: push-pull, active-high (RESET)
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C7B
  • Designed for high performance and safety:
  • Input current (4 channels): IDD = 15 µA maximum
  • High threshold accuracy: ±0.25% typical, ±1% maximum
  • Built-in precision hysteresis: VHYS (VIT > 800 mV) = 0.75% typical
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL A
    • Self test - manual setup
  • Designed for a wide range of applications:
  • Input voltage range, VDD = 1.7 V to 6V
  • Quad, triple, dual, or single voltage supervisor
  • Each channel highly configurable
    • Window (OV, UV), UV-only, OV-only options
    • Window tolerance: ±3% to ±11%
    • High threshold resolution: VIT ≤ 0.8 V: 20-mV steps VIT > 0.8 V: Lower of 0.5% or 20-mV steps
  • Push-button monitor on all channels
  • Reset time delay (tD): Fixed time delay options
    • Options: 23 fixed time options ranging from 20 µs minimum to 1200 ms maximum
  • Multiple output topologies, package type:
  • TPS3704xxxO-Q1:open-drain, active-low (RESET)
  • TPS3704xxxL-Q1: push-pull, active-low (RESET)
  • TPS3704xxxH-Q1: push-pull, active-high (RESET)

The TPS3704-Q1 is a low-power precision window voltage supervisor that can be configured as a quad, triple, dual, or single channel. Each channel has a threshold accuracy of ±1% in a compact SOT-23 package offering a small solution size. The TPS3704-Q1 includes a very accurate threshold detection, with high resolution, that is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Built-in low threshold hysteresis and a fixed reset delay (tD options from 20 µs to 1200 ms) prevent false reset signals when monitoring multiple voltage rails.

The TPS3704-Q1 does not require any external resistors for setting the over- and undervoltage reset thresholds, which further optimizes overall high accuracy, cost, solution size, and improves reliability for safety systems. The TPS3704-Q1 functional safety compliance elevates automotive design that can meet ISO 26262 requirements and automotive safety integrity levels. Separate VDD and SENSEx pins allow monitoring of rail voltages other than VDD or can be used as a push-button input. Optional use of external resistors are supported by the SENSEx pin(s). Each channel on the TPS3704-Q1 can be customized to its own over- and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric. The TPS3704-Q1 can monitor up to four channels while maintaining an ultra-low IQ current of 5.5 µA (typical) and operates over a temperature range of –40°C to +125°C (TA).

The TPS3704-Q1 is a low-power precision window voltage supervisor that can be configured as a quad, triple, dual, or single channel. Each channel has a threshold accuracy of ±1% in a compact SOT-23 package offering a small solution size. The TPS3704-Q1 includes a very accurate threshold detection, with high resolution, that is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Built-in low threshold hysteresis and a fixed reset delay (tD options from 20 µs to 1200 ms) prevent false reset signals when monitoring multiple voltage rails.

The TPS3704-Q1 does not require any external resistors for setting the over- and undervoltage reset thresholds, which further optimizes overall high accuracy, cost, solution size, and improves reliability for safety systems. The TPS3704-Q1 functional safety compliance elevates automotive design that can meet ISO 26262 requirements and automotive safety integrity levels. Separate VDD and SENSEx pins allow monitoring of rail voltages other than VDD or can be used as a push-button input. Optional use of external resistors are supported by the SENSEx pin(s). Each channel on the TPS3704-Q1 can be customized to its own over- and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric. The TPS3704-Q1 can monitor up to four channels while maintaining an ultra-low IQ current of 5.5 µA (typical) and operates over a temperature range of –40°C to +125°C (TA).

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TPS386000-Q1 正在供货 具有可编程延迟和看门狗计时器的汽车类四通道电源电压监控器 Similar functionality but is not pin-for-pin or parametrically equivalent to the compared device
功能与比较器件相似。
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Consider TPS389006-Q1 for designs requiring up to six voltage supervisor channels.

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类型 项目标题 下载最新的英语版本 日期
* 数据表 TPS3704-Q1 Automotive Quad, Triple, Dual, Single Window or Standard Voltage Supervisor 数据表 (Rev. A) PDF | HTML 31 May 2022
功能安全信息 TPS3704 Functional Safety Analysis Report Summary (FMEDA) (Rev. A) PDF | HTML 26 May 2022
功能安全信息 TPS3704 Functional Safety Report Summary (Rev. A) PDF | HTML 26 May 2022
功能安全信息 TPS3704x-Q1 Functional Safety Manual (Rev. A) PDF | HTML 26 May 2022

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评估板

TPS3704Q1EVM — 适用于 TPS3704 紧凑型多通道窗口监控器的评估模块

TPS3704Q1 评估模块 (EVM) 是一款用于评估 TPS3704-Q1 的平台,TPS3704-Q1 是一款采用 8 引脚 Small Outline Transistor (SOT-23) DDF 封装的多通道窗口监控器和复位 IC。TPS3704Q1EVM 可以监控单、双、三和四电压轨。该 EVM 的输入电压高达 6V。

可以通过专门放置的跳线将输出信号 (/RESETx) 设置为输入电压电平或独立设置为任何电压电平(在工作范围内),从而实现更大的灵活性。有关详细信息,请参阅用户指南。

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TPS3704 and TPS3704-Q1 PSpice Transient Model TPS3704 and TPS3704-Q1 PSpice Transient Model

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TPS3704 Voltage Threshold Accuracy and Tolerance Calculator TPS3704 Voltage Threshold Accuracy and Tolerance Calculator

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