BQ2057SN TI Battery Charger IC | 8-SOIC | Li-Ion, Li-Pol, 4.1V/4.2V

Product Overview

The BQ2057SN from Texas Instruments is a highly integrated, linear Li-Ion and Li-Pol battery charger IC designed for space-constrained applications. It operates with a single-cell battery and supports charge voltages of 4.1V or 4.2V, selectable via a logic pin. The device features a constant-current/constant-voltage (CC/CV) charging algorithm with programmable charge current up to 1.2A. Its 8-SOIC package ensures easy integration into compact designs.

Detailed Technical Specifications

Key Features

• Integrated power FET and current sensor
• No external blocking diode required
• Programmable charge current via external resistor
• Charge status output for LED or host interface
• Low dropout voltage (200mV typical at 1A)
• Automatic recharge and trickle charge for deeply discharged cells

Target Applications

• Portable consumer electronics: smartphones, tablets, Bluetooth headsets
• Medical devices: glucose monitors, portable diagnostic equipment
• Industrial handhelds: barcode scanners, data loggers
• IoT devices: smart sensors, wireless modules
• 5G base station backup battery chargers
• Automotive dashboard infotainment systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ2057SN. 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

BQ2057SN 是德州儀器（TI）推出的一款高度集成的線性鋰離子/鋰聚合物電池充電管理 IC，專為空間受限的應用設計。它支持單節電池充電，可通過邏輯引腳選擇 4.1V 或 4.2V 充電電壓。器件採用恆流/恆壓（CC/CV）充電算法，最大充電電流可編程至 1.2A。8-SOIC 封裝便於集成到緊湊型設計中。

詳細技術參數

核心特性

• 集成功率 FET 和電流傳感器
• 無需外部阻塞二極管
• 通過外部電阻可編程充電電流
• 充電狀態輸出，用於 LED 或主機接口
• 低壓差電壓（1A 時典型值 200mV）
• 自動再充電和深度放電電池的涓流充電

典型應用場景

• 便攜消費電子：智能手機、平板電腦、藍牙耳機
• 醫療設備：血糖儀、便攜診斷設備
• 工業手持設備：條碼掃描器、數據記錄儀
• 物聯網設備：智能傳感器、無線模塊
• 5G 基站備用電池充電器
• 汽車儀表盤信息娛樂系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ2057SN 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]