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TPS3704-Q1

現行

具有高準確度和極小體積的車用多通道視窗監控器

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產品規格表

TPS3704-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of supplies monitored 2, 3, 4 Threshold voltage 1 (typ) (V) 0.8, 1, 1.15, 1.2, 1.8, 2.8, 3.3, adjustable Features Push-button, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.0055 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 Supply voltage (min) (V) 1.7 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 2, 3, 4 Threshold voltage 1 (typ) (V) 0.8, 1, 1.15, 1.2, 1.8, 2.8, 3.3, adjustable Features Push-button, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.0055 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 Supply voltage (min) (V) 1.7 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23-THN (DDF) 8 8.12 mm² 2.9 x 2.8
  • ASIL-A Functional Safety-Compliant
    • Development targeted for functional safety applications
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL A
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C
  • 1-4 channels for monitoring state-of-the art SOCs
    • High ±0.25% (typical) threshold accuracy
    • Configure each channel for Window, UV, or OV voltage monitoring
    • Programmable window tolerance [3% to 11% (typical*)] for each channel
    • Easy to use calculator tool for adjustable versions
    • Designed to monitor Core and GPIO rails of TI processors (AM26x, AM62x, TDA4)
  • Miniature solution with low power consumption
    • 5.5µA typical quiescent current
    • Compact 6 pin SOT-23 package (2.9mm x 1.6mm)
  • Additional Features
    • Built-in hysteresis to prevent false trip on RESET: 0.75% (typical)
    • 23 fixed time delay options (selectable from 20µs to 1200ms)
    • Open drain or push-pull output topology available
  • ASIL-A Functional Safety-Compliant
    • Development targeted for functional safety applications
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL A
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C
  • 1-4 channels for monitoring state-of-the art SOCs
    • High ±0.25% (typical) threshold accuracy
    • Configure each channel for Window, UV, or OV voltage monitoring
    • Programmable window tolerance [3% to 11% (typical*)] for each channel
    • Easy to use calculator tool for adjustable versions
    • Designed to monitor Core and GPIO rails of TI processors (AM26x, AM62x, TDA4)
  • Miniature solution with low power consumption
    • 5.5µA typical quiescent current
    • Compact 6 pin SOT-23 package (2.9mm x 1.6mm)
  • Additional Features
    • Built-in hysteresis to prevent false trip on RESET: 0.75% (typical)
    • 23 fixed time delay options (selectable from 20µs to 1200ms)
    • Open drain or push-pull output topology available

The TPS3704-Q1 is an ASIL-A compliant low-power precision window (UV +OV) voltage supervisor that can be configured and is available in an 8-pin (1.6mm x 2.9mm) SOT-23 package. This highly accurate (±0.25%) supervisor is available as a quad, triple, dual, and or single channel options. Each channel can be customized to its own overvoltage and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric.

TPS3704-Q1 allows for highly accurate threshold detection with high resolution that is designed for systems operating on low-voltage supply rails with narrow margin supply tolerances. In addition, the built-in low threshold hysteresis and fixed reset delay features prevent false reset signals when monitoring multiple voltage rails.

The TPS3704-Q1 does not require any external resistors for setting the overvoltage and undervoltage reset thresholds which improves reliability for safety systems and optimizes overall accuracy, cost, solution size. Optional use of external resistors for design flexibility is supported by the SENSEx pins. Separate VDD and SENSEx pins allow monitoring of voltage rails other than VDD or alternatively enables use of a push-button input.

The TPS3704-Q1 is an ASIL-A compliant low-power precision window (UV +OV) voltage supervisor that can be configured and is available in an 8-pin (1.6mm x 2.9mm) SOT-23 package. This highly accurate (±0.25%) supervisor is available as a quad, triple, dual, and or single channel options. Each channel can be customized to its own overvoltage and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric.

TPS3704-Q1 allows for highly accurate threshold detection with high resolution that is designed for systems operating on low-voltage supply rails with narrow margin supply tolerances. In addition, the built-in low threshold hysteresis and fixed reset delay features prevent false reset signals when monitoring multiple voltage rails.

The TPS3704-Q1 does not require any external resistors for setting the overvoltage and undervoltage reset thresholds which improves reliability for safety systems and optimizes overall accuracy, cost, solution size. Optional use of external resistors for design flexibility is supported by the SENSEx pins. Separate VDD and SENSEx pins allow monitoring of voltage rails other than VDD or alternatively enables use of a push-button input.

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* Data sheet TPS3704-Q1 Automotive Quad, Triple, Dual, Single Window or Standard Voltage Supervisor datasheet (Rev. C) PDF | HTML 2024年 5月 21日
Functional safety information TPS3704 Functional Safety Analysis Report Summary (FMEDA) (Rev. A) PDF | HTML 2022年 5月 26日
Functional safety information TPS3704 Functional Safety Report Summary (Rev. A) PDF | HTML 2022年 5月 26日
Functional safety information TPS3704x-Q1 Functional Safety Manual (Rev. A) PDF | HTML 2022年 5月 26日

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開發板

TPS3704Q1EVM — 適合體積精巧的多通道窗型監控器的 TPS3704 評估模組

TPS3704 評估模組 (EVM) 是用於評估 TPS3704-Q1 的平台，此平台採用 8 針腳小型電晶體 (SOT-23) DDF 封裝的多通道窗型監控器和重設 IC。TPS3704Q1EVM 監控單電壓、雙電壓、三電壓和四電壓軌。EVM 的輸入電壓最高可運作 6 V。

輸出訊號 (/RESETx) 可以透過專門放置的跨接器在輸入電壓電平或獨立於任何電壓電平 (在運作範圍內) 進行設定，進而實現最大的靈活性。如需詳細資訊，請參閱使用指南。

使用指南: PDF | HTML
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模擬型號

TPS3704 and TPS3704-Q1 PSpice Transient Model

SNVMC94.ZIP (5083 KB) - PSpice Model
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計算工具

SNVR502 — TPS3704 Voltage Threshold Accuracy and Tolerance Calculator

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產品
監控器和重設 IC
TPS3704 — 具高準確度和極小體積的多通道視窗監控器 TPS3704-Q1 — 具有高準確度和極小體積的車用多通道視窗監控器
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計算工具

TPS3704-ADJ-CALC — TPS3704 adjustable-voltage threshold-resistor calculator

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產品
監控器和重設 IC
TPS3704 — 具高準確度和極小體積的多通道視窗監控器 TPS3704-Q1 — 具有高準確度和極小體積的車用多通道視窗監控器
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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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參考設計

PMP41085 — 具有功能安全功能的 100W 車用資訊娛樂顯示模組參考設計

此參考設計展示具有冷車啟動、負載突降及 FuSa 功能的 100W 車用資訊娛樂顯示模組電源參考設計。

LM74900-Q1 是設計的第一階段，扮演負極輸入電壓、欠電壓、鎖定輸出與過電流保護的防護角色。LM5152-Q1 是用作預升壓控制器的第二階段，如果啟動時電池電壓低，則可升壓至特定電壓。本裝置支援低至 4.2V 的電池電壓。在第三階段，此設計會使用 LMQ644A2-Q1、TPS62813-Q1 和 TPS745-Q1 為局部調光背光、TCON 和 SerDes 等子系統提供所需的電壓。最後，此設計會使用電壓監視器和比較器來監控每個電源軌，並輔助 ISO 26262 系統設計達成目標 (...)

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