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Product Overview
The TLV803ED29DBZR from Texas Instruments is a supervisory circuit designed to monitor power supplies in digital systems. It provides a reset output to the microprocessor during power-up, power-down, and brown-out conditions. The device features a fixed threshold voltage of 2.93V, ensuring reliable system reset when the supply voltage drops below this level. Housed in a compact SOT-23-3 package, it is ideal for space-constrained applications. The open-drain RESET output remains active for a minimum of 140ms after VDD rises above the threshold, allowing the system to stabilize.
Detailed Technical Specifications
| Parameter |
Value |
| Threshold Voltage |
2.93V (typical) |
| Supply Voltage Range |
1.0V to 5.5V |
| Reset Timeout Period |
140ms (minimum) |
| Output Type |
Open-drain, active-low |
| Quiescent Current |
1.5µA (typical) |
| Operating Temperature |
-40°C to +125°C |
| Package |
SOT-23-3 |
Key Features
- Precision voltage monitoring with 2.93V threshold
- Low supply current of 1.5µA extends battery life
- Open-drain RESET output for flexible interfacing
- 140ms minimum reset delay ensures system stability
- Wide operating temperature range suitable for industrial environments
- Small SOT-23-3 package saves board space
Target Applications
- 5G base station power supply monitoring
- Automotive dashboard and infotainment systems
- Portable medical devices like glucose meters
- Industrial PLC and motor control units
- IoT edge nodes and smart sensors
Global Supply Chain & Wholesale Solutions
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TLV803ED29DBZR. Our core advantages include:
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產品概述
TLV803ED29DBZR 是德州儀器推出的電源監控復位電路,專為數字系統中的電源監控設計。該器件在系統上電、掉電和電壓驟降時提供復位信號給微處理器。其固定閾值電壓為 2.93V,確保當電源電壓低於此電平時系統可靠復位。採用緊湊的 SOT-23-3 封裝,適合空間受限的應用。開漏 RESET 輸出在 VDD 上升到閾值以上後至少保持 140ms 有效,使系統穩定。
詳細技術參數
| 參數 |
數值 |
| 閾值電壓 |
2.93V(典型值) |
| 電源電壓範圍 |
1.0V 至 5.5V |
| 復位超時週期 |
140ms(最小值) |
| 輸出類型 |
開漏,低電平有效 |
| 靜態電流 |
1.5µA(典型值) |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
SOT-23-3 |
核心特性
- 精確電壓監控,閾值 2.93V
- 低靜態電流 1.5µA,延長電池壽命
- 開漏 RESET 輸出,接口靈活
- 最小 140ms 復位延遲,確保系統穩定
- 寬工作溫度範圍,適合工業環境
- 小型 SOT-23-3 封裝,節省電路板空間
典型應用場景
- 5G 基站電源監控
- 汽車儀表盤和信息娛樂系統
- 便攜式醫療設備,如血糖儀
- 工業 PLC 和電機控制單元
- IoT 邊緣節點和智能傳感器
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