BQ2057WSN TI Battery Charger IC | 8-SOIC | Li-Ion, 4.1V

Product Overview

The BQ2057WSN from Texas Instruments is a highly integrated, single-cell lithium-ion (Li-Ion) and lithium-polymer (Li-Pol) battery charge management IC. It operates with a constant-current/constant-voltage (CC/CV) charging profile and is designed for space-constrained applications. The device is available in an 8-pin SOIC package and provides accurate voltage regulation (4.1V) with ±1% accuracy. It features a low dropout voltage (typically 300mV at 1A) and supports charge currents up to 2A. The BQ2057WSN includes automatic charge termination, preconditioning for deeply discharged cells, and a status output for charge indication. Its small footprint and minimal external component count make it ideal for portable electronics.

Detailed Technical Specifications

Key Features

• Complete charge management for single-cell Li-Ion/Li-Pol batteries
• CC/CV charging with ±1% voltage accuracy
• Low dropout voltage (300mV typical at 1A)
• Programmable charge current up to 2A
• Automatic charge termination and preconditioning
• Charge status indicator output
• Thermal regulation and protection
• Small 8-SOIC package

Target Applications

• Portable medical devices (e.g., glucose meters, pulse oximeters)
• Handheld industrial terminals (e.g., barcode scanners, data loggers)
• Consumer electronics (e.g., Bluetooth speakers, smart watches)
• 5G base station backup battery management
• Automotive dashboard cameras (dashcams)
• IoT sensors and wireless modules

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ2057WSN. 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

BQ2057WSN 是德州儀器 (TI) 推出的高度集成單節鋰離子 (Li-Ion) 和鋰聚合物 (Li-Pol) 電池充電管理 IC。它採用恆流/恆壓 (CC/CV) 充電曲線，專為空間受限的應用設計。該器件採用 8 引腳 SOIC 封裝，提供精確的電壓調節 (4.1V)，精度為 ±1%。它具有低壓差電壓 (典型值 300mV @ 1A)，支持高達 2A 的充電電流。BQ2057WSN 包括自動充電終止、深度放電電池預處理以及充電狀態輸出。其小尺寸和最少的外部元件數量使其非常適合便攜式電子設備。

詳細技術參數

核心特性

• 單節鋰離子/鋰聚合物電池的完整充電管理
• CC/CV 充電，電壓精度 ±1%
• 低壓差電壓 (1A 時典型值 300mV)
• 可編程充電電流高達 2A
• 自動充電終止和預處理
• 充電狀態指示輸出
• 熱調節和保護
• 小型 8-SOIC 封裝

典型應用場景

• 便攜式醫療設備 (例如血糖儀、脈搏血氧儀)
• 手持工業終端 (例如條碼掃描器、數據記錄器)
• 消費電子產品 (例如藍牙音箱、智能手錶)
• 5G 基站備用電池管理
• 汽車行車記錄儀 (Dashcam)
• 物聯網傳感器和無線模塊

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ2057WSN 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.
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