TPS3704-Q1
- 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.
索取更多資訊
提供完整故障模式、影響和診斷分析 (FMEDA)。立即索取
您可能會感興趣的類似產品
功能相同，但針腳輸出與所比較的裝置不同。
功能相似於所比較的產品。
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS3704-Q1 Automotive Quad, Triple, Dual, Single Window or Standard Voltage Supervisor datasheet (Rev. C) | PDF | HTML | 2024/5/21 | ||
| 功能安全資訊 | TPS3704 Functional Safety Analysis Report Summary (FMEDA) (Rev. A) | PDF | HTML | 2022/5/26 | |||
| 功能安全資訊 | TPS3704 Functional Safety Report (Rev. A) | PDF | HTML | 2022/5/26 | |||
| 功能安全資訊 | TPS3704x-Q1 Functional Safety Manual (Rev. A) | PDF | HTML | 2022/5/26 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
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。
SNVR502 — TPS3704 Voltage Threshold Accuracy and Tolerance Calculator
TPS3704-ADJ-CALC — TPS3704 adjustable-voltage threshold-resistor calculator
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 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23-THN (DDF) | 8 | Ultra Librarian |