BQ2057TTSTR TI Battery Charger IC | 8-TSSOP | Li-Ion, 4.1V/4.2V

Product Overview

The BQ2057TTSTR from Texas Instruments is a highly integrated, linear charge management IC designed for single-cell lithium-ion (Li-Ion) and lithium-polymer (Li-Pol) battery packs. It operates with a constant-current/constant-voltage (CC/CV) charging profile and supports charge voltages of 4.1V or 4.2V, selectable via a logic pin. Housed in a compact 8-TSSOP package, it is ideal for space-constrained portable applications. The device features automatic charge termination, preconditioning for deeply discharged cells, and a charge status output. With low external component count and high accuracy, the BQ2057TTSTR simplifies battery charger design.

Detailed Technical Specifications

Key Features

• Complete linear charger for single-cell Li-Ion/Li-Pol batteries
• Selectable 4.1V or 4.2V charge voltage
• Programmable charge current up to 2A
• Automatic charge termination and preconditioning
• Charge status output for LED or microcontroller
• Low dropout voltage (200mV typical at 1A)
• Thermal regulation for maximum charge rate without overheating
• Reverse leakage protection prevents battery discharge
• Small 8-TSSOP package

Target Applications

• Portable consumer electronics: smartphones, tablets, digital cameras
• Medical devices: glucose meters, portable monitors
• Industrial handhelds: barcode scanners, data loggers
• IoT devices: smart sensors, wearable devices
• 5G base station backup battery chargers
• Automotive dashboard cameras and GPS trackers

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ2057TTSTR. 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

BQ2057TTSTR 是德州儀器（TI）推出的一款高度集成的線性充電管理 IC，專為單節鋰離子（Li-Ion）和鋰聚合物（Li-Pol）電池組設計。它採用恆流/恆壓（CC/CV）充電曲線，並支持通過邏輯引腳選擇 4.1V 或 4.2V 的充電電壓。該器件採用緊湊的 8-TSSOP 封裝，非常適合空間受限的便攜式應用。BQ2057TTSTR 具有自動充電終止、深度放電電池預處理和充電狀態輸出功能。憑藉低外部元件數量和較高的精度，它簡化了電池充電器設計。

詳細技術參數

核心特性

• 完整的單節鋰離子/鋰聚合物線性充電器
• 可選 4.1V 或 4.2V 充電電壓
• 可編程充電電流最高 2A
• 自動充電終止和預處理
• 充電狀態輸出，用於 LED 或微控制器
• 低壓差電壓（1A 時典型值 200mV）
• 熱調節功能，在不過熱的情況下最大化充電速率
• 反向漏電保護，防止電池放電
• 小型 8-TSSOP 封裝

典型應用場景

• 便攜式消費電子：智能手機、平板電腦、數碼相機
• 醫療設備：血糖儀、便攜式監護儀
• 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、可穿戴設備
• 5G 基站備用電池充電器
• 汽車行車記錄儀和 GPS 追蹤器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ2057TTSTR 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
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