BQ24400PWR TI Battery Charger IC | 8-TSSOP | NiCd/NiMH, 1-4 Cells

Product Overview

The BQ24400PWR from Texas Instruments is a highly integrated, low-cost, single-chip battery charger controller designed for fast charging of NiCd and NiMH batteries. It operates with a constant current and constant voltage (CC/CV) charging profile, supporting 1 to 4 series cells. The device features a pulse-width modulation (PWM) current control with a programmable charge current up to 2A. It includes automatic charge termination based on negative delta voltage (-ΔV) and temperature monitoring for safe operation. The BQ24400PWR is available in a compact 8-pin TSSOP package, making it suitable for space-constrained applications.

Detailed Technical Specifications

Key Features

• Integrated PWM controller for efficient charging
• Programmable charge current via external resistor
• Automatic -ΔV charge termination
• Temperature monitoring with NTC thermistor
• Low dropout operation (LDO) for low battery voltage
• Charge status output (CHG) for LED indication
• Under-voltage lockout (UVLO) and thermal shutdown
• Small 8-TSSOP package for compact designs

Target Applications

• Portable consumer electronics: digital cameras, handheld games, portable media players
• Industrial handheld devices: barcode scanners, portable data terminals
• Medical devices: portable patient monitors, glucose meters
• Communication equipment: two-way radios, 5G base station backup battery chargers
• Automotive: dashboard battery backup, keyless entry systems
• Power tools: cordless screwdrivers, drills

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ24400PWR. 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

BQ24400PWR 是德州儀器 (TI) 推出的一款高度集成、低成本、單芯片電池充電控制器，專為鎳鎘 (NiCd) 和鎳氫 (NiMH) 電池的快速充電設計。它採用恆流恆壓 (CC/CV) 充電曲線，支持 1 至 4 節串聯電池。該器件具有脈寬調製 (PWM) 電流控制，可編程充電電流高達 2A。它基於負電壓變化 (-ΔV) 和溫度監控實現自動充電終止，確保安全操作。BQ24400PWR 採用緊湊的 8 引腳 TSSOP 封裝，適合空間受限的應用。

詳細技術參數

核心特性

• 集成 PWM 控制器，實現高效充電
• 通過外部電阻可編程充電電流
• 自動 -ΔV 充電終止
• 通過 NTC 熱敏電阻監控溫度
• 低壓差 (LDO) 操作，支持低電池電壓
• 充電狀態輸出 (CHG)，用於 LED 指示
• 欠壓鎖定 (UVLO) 和熱關斷保護
• 小型 8-TSSOP 封裝，適合緊湊設計

典型應用場景

• 便攜消費電子：數碼相機、手持遊戲機、便攜媒體播放器
• 工業手持設備：條碼掃描器、便攜數據終端
• 醫療設備：便攜病人監護儀、血糖儀
• 通信設備：對講機、5G 基站備用電池充電器
• 汽車電子：儀表板備用電池、無鑰匙進入系統
• 電動工具：無繩螺絲刀、電鑽

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ24400PWR 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]