BQ29441DRBR TI Battery Protection IC | 8-SON(3x3) | 2-4S Li-Ion, Overvoltage Protection

Product Overview

The BQ29441DRBR from Texas Instruments is a secondary overvoltage protection IC designed for 2-series to 4-series Li-Ion and Li-Polymer battery packs. It provides a high-accuracy overvoltage protection threshold with a fixed delay time, ensuring safe operation in various battery-powered applications. The device is housed in a compact 8-pin SON (3x3 mm) package, making it ideal for space-constrained designs.

Detailed Technical Specifications

Key Features

• High-accuracy overvoltage protection (±25 mV)
• Fixed overvoltage delay time (1 s)
• Low quiescent current (1 µA)
• Supports 2S to 4S Li-Ion/Li-Polymer battery packs
• Small 8-pin SON package (3x3 mm)
• Internal hysteresis for noise immunity

Target Applications

• 5G base station backup battery packs
• Automotive dashboard battery monitoring
• Portable power tools
• Electric bicycles and scooters
• Medical devices (e.g., portable defibrillators)
• Uninterruptible power supplies (UPS)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ29441DRBR. 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

BQ29441DRBR 是德州儀器 (TI) 推出的二次過壓保護 IC，專為 2 至 4 串聯鋰離子及鋰聚合物電池組設計。它提供高精度的過壓保護閾值及固定延遲時間，確保各種電池供電應用的安全運行。該器件採用緊湊的 8 引腳 SON (3x3 mm) 封裝，非常適合空間受限的設計。

詳細技術參數

核心特性

• 高精度過壓保護 (±25 mV)
• 固定過壓延遲時間 (1 s)
• 低靜態電流 (1 µA)
• 支援 2S 至 4S 鋰離子/鋰聚合物電池組
• 小型 8 引腳 SON 封裝 (3x3 mm)
• 內部遲滯以增強抗噪性

典型應用場景

• 5G 基站備用電池組
• 汽車儀表板電池監控
• 可攜式電動工具
• 電動自行車及滑板車
• 醫療設備 (如可攜式除顫器)
• 不間斷電源 (UPS)

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ29441DRBR 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。
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• 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
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