UC3909QTR TI Battery Charge Controller | Lead-Acid, 1.5A, 4.1V-20V

Product Overview

The UC3909QTR from Texas Instruments is a high-performance lead-acid battery charge controller IC designed for advanced battery management systems. It integrates a linear current source and voltage regulation loop to provide precise charging profiles for sealed lead-acid (SLA) batteries. The device operates over a wide input voltage range of 4.1V to 20V and delivers up to 1.5A of charge current. Its compact QFN package makes it suitable for space-constrained applications.

Detailed Technical Specifications

Key Features

• Integrated linear charge controller with thermal regulation
• Programmable charge current and voltage
• Automatic recharge and trickle charge for deeply discharged batteries
• Status outputs for charge indication (CHG, FAULT)
• Low dropout voltage (200mV typical at 1A)
• Reverse leakage protection when input is disconnected

Target Applications

• 5G base station backup power systems
• Automotive dashboard battery management
• Portable medical devices (e.g., defibrillators)
• Uninterruptible power supplies (UPS) for servers
• Solar-powered lighting systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for UC3909QTR. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

UC3909QTR 是德州儀器（TI）推出的一款高性能鉛酸電池充電控制器 IC，專為先進的電池管理系統設計。它集成了線性電流源和電壓調節環路，為密封鉛酸（SLA）電池提供精確的充電曲線。該器件在 4.1V 至 20V 的寬輸入電壓範圍內工作，可提供高達 1.5A 的充電電流。緊湊的 QFN 封裝使其適用於空間受限的應用。

詳細技術參數

核心特性

• 集成線性充電控制器，帶熱調節功能
• 可編程充電電流和電壓
• 自動再充電和深度放電電池的涓流充電
• 充電狀態輸出（CHG、FAULT）
• 低壓差電壓（1A 時典型值 200mV）
• 輸入斷開時的反向漏電保護

典型應用場景

• 5G 基站備用電源系統
• 汽車儀表板電池管理
• 便攜式醫療設備（如除顫器）
• 服務器不間斷電源（UPS）
• 太陽能照明系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 UC3909QTR 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]