TLV840MADL29DBVRQ1 TI Supervisory Circuit | SOT-23-5 | 2.9V Threshold, Active-Low Reset

Product Overview

The TLV840MADL29DBVRQ1 from Texas Instruments is a voltage supervisory circuit designed for automotive and industrial applications. It monitors supply voltages and asserts a reset signal when the voltage falls below a preset threshold, ensuring reliable system operation. Housed in a compact SOT-23-5 package, this device offers a fixed threshold voltage of 2.9V with an active-low, open-drain reset output. It features low quiescent current (typical 5.5 µA) and high accuracy (±1.5% over temperature), making it ideal for battery-powered and power-sensitive systems.

Detailed Technical Specifications

Key Features

• Fixed threshold voltage of 2.9V with high accuracy
• Low quiescent current (5.5 µA) for battery-powered applications
• Open-drain active-low reset output with internal pull-up
• Reset timeout delay of 200 ms ensures stable system startup
• Wide supply voltage range: 0.8V to 6.0V
• Automotive qualified (AEC-Q100) for harsh environments
• Compact SOT-23-5 package saves board space

Target Applications

• Automotive: Advanced driver-assistance systems (ADAS) modules, infotainment systems, dashboard clusters, and body control modules
• Industrial: Programmable logic controllers (PLCs), motor drives, and power management units
• Consumer: Smart home hubs, portable electronics, and IoT devices
• Communication: 5G base station power monitoring, network switches, and routers
• Medical: Patient monitoring devices and portable diagnostic equipment

Global Supply Chain & Wholesale Solutions

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• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

TLV840MADL29DBVRQ1 是德州儀器（TI）推出的一款電壓監控復位電路，專為汽車和工業應用設計。它監控電源電壓，當電壓低於預設閾值時發出復位信號，確保系統可靠運行。該器件採用緊湊的 SOT-23-5 封裝，提供固定的 2.9V 閾值電壓和開漏低電平有效復位輸出。典型靜態電流僅 5.5 µA，精度高達 ±1.5%（全溫度範圍），非常適合電池供電和對功耗敏感的系統。

詳細技術參數

核心特性

• 固定 2.9V 閾值電壓，精度高
• 低靜態電流（5.5 µA），適合電池供電應用
• 開漏低電平有效復位輸出，內置上拉電阻
• 200 ms 復位延遲，確保系統穩定啟動
• 寬電源電壓範圍：0.8V 至 6.0V
• 通過 AEC-Q100 汽車級認證，適用於惡劣環境
• 緊湊 SOT-23-5 封裝，節省電路板空間

典型應用場景

• 汽車：先進駕駛輔助系統（ADAS）模組、信息娛樂系統、儀表盤集群、車身控制模組
• 工業：可編程邏輯控制器（PLC）、電機驅動器、電源管理單元
• 消費電子：智能家居中樞、便攜電子設備、物聯網設備
• 通信：5G 基站電源監控、網絡交換機、路由器
• 醫療：病人監護設備、便攜診斷儀器

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