BQ24257RGER TI Battery Charger IC | 24-VQFN (4x4) | 1.5A, I2C

Product Overview

The BQ24257RGER from Texas Instruments is a highly integrated single-cell Li-Ion battery charger IC designed for space-constrained portable applications. It features a 1.5A charge current with I2C programmable parameters, supporting USB and adapter input. The device operates from a 3.9V to 6.2V input voltage range and includes power path management, allowing the system to run even with a deeply discharged battery. Housed in a compact 24-VQFN (4x4mm) package, it is ideal for wearables, smartphones, and IoT devices.

Detailed Technical Specifications

Key Features

• 1.5A maximum charge current with thermal regulation
• I2C programmable charge current, voltage, and termination
• Power path management for instant system start-up
• Battery temperature monitoring (NTC thermistor)
• JEITA compliant charging profile
• Low quiescent current (20µA in battery-only mode)
• Reverse current protection
• Status outputs (CHG, PG, INT)

Target Applications

• Wearable devices (e.g., smartwatches, fitness bands)
• Smartphones and tablets
• Bluetooth headsets and earbuds
• Portable medical devices (e.g., glucose monitors)
• IoT sensors and modules
• 5G base station monitoring equipment
• Automotive dashboard cameras

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ24257RGER. 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

BQ24257RGER 是德州儀器（TI）推出的一款高度集成的單節鋰離子電池充電管理 IC，專為空間受限的便攜式應用設計。它支持 1.5A 充電電流，並通過 I2C 接口可編程參數，兼容 USB 和適配器輸入。器件工作輸入電壓範圍為 3.9V 至 6.2V，具備電源路徑管理功能，即使電池深度放電也能讓系統正常運行。採用緊湊的 24-VQFN（4x4mm）封裝，適用於可穿戴設備、智能手機和物聯網設備。

詳細技術參數

核心特性

• 1.5A 最大充電電流，帶熱調節
• I2C 可編程充電電流、電壓和終止
• 電源路徑管理，實現即時系統啟動
• 電池溫度監測（NTC 熱敏電阻）
• 符合 JEITA 充電曲線
• 低靜態電流（電池模式下 20µA）
• 反向電流保護
• 狀態輸出（CHG、PG、INT）

典型應用場景

• 可穿戴設備（如智能手錶、健身手環）
• 智能手機和平板電腦
• 藍牙耳機和耳塞
• 便攜式醫療設備（如血糖監測儀）
• 物聯網傳感器和模塊
• 5G 基站監控設備
• 汽車儀表盤攝像頭

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ24257RGER 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]