TPS3704
- Up to four independent voltage
supervisor channels:
- Fixed and adjustable window, UV, or OV voltage options. See for available options.
- Easy to use calculator tool for adjustable versions
- High threshold accuracy: ±0.25% (typical)
- Built-in precision hysteresis: 0.75% (typical)
- Fixed time delay options
- Open drain outputs
- Designed to support Arm-based processors such as TDA4, Sitara AM33xx, and advanced FPGAs and SOCs
- Low quiescent current: 15 µA (maximum)
- Temperature range: –40°C to +125°C
-
Functional Safety-Compliant
- Systematic capability up to SIL 3
- Hardware capability up to SIL 1
The TPS3704x is a low-power precision window or standard voltage supervisor that can be configured as a quad, triple, or dual channel. Each channel has a threshold accuracy of ±1% in an 8-pin (1.6 mm x 2.9 mm) SOT-23 package offering a small solution size. The TPS3704x 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 prevent false reset signals when monitoring multiple voltage rails.
The TPS3704x 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.
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 pins. Each channel on the TPS3704x can be customized to its own over and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric.
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 | TPS3704x Quad, Triple, Dual Window or Standard Voltage Supervisor datasheet (Rev. E) | PDF | HTML | 2023/12/8 | ||
| 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
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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
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23-THN (DDF) | 8 | Ultra Librarian |