BQ21040DBVR TI Battery Charger IC | SOT-23-6 | 4.2V, 1A

Product Overview

The BQ21040DBVR is a highly integrated Li-Ion and Li-Pol linear battery charger IC from Texas Instruments. It is designed for space-constrained portable applications, offering a compact SOT-23-6 package. The device features a constant-current/constant-voltage (CC/CV) charging profile with a programmable charge current up to 1A. It includes thermal regulation, charge status indication, and automatic charge termination. The BQ21040DBVR operates from a USB or AC adapter input and is ideal for single-cell battery charging in consumer, industrial, and medical devices.

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 (CHG) for LED or host interface
• Thermal regulation and protection
• Preconditioning for deeply discharged batteries
• Automatic recharge
• Low dropout operation

Target Applications

• Portable consumer electronics: Bluetooth speakers, smartwatches, fitness trackers
• Medical devices: glucose monitors, pulse oximeters
• Industrial equipment: handheld terminals, data loggers
• IoT devices: wireless sensors, smart home hubs
• 5G base station auxiliary power: backup battery charging
• Automotive dashboard: infotainment system backup battery

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ21040DBVR. 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

BQ21040DBVR 是德州儀器 (TI) 推出的一款高度集成的鋰離子/鋰聚合物線性電池充電器 IC，採用緊湊的 SOT-23-6 封裝，專為空間受限的便攜式應用設計。該器件採用恆流/恆壓 (CC/CV) 充電曲線，可編程充電電流高達 1A。它包含熱調節、充電狀態指示和自動充電終止功能。BQ21040DBVR 可通過 USB 或 AC 適配器供電，非常適合消費類、工業和醫療設備中的單節電池充電。

詳細技術參數

核心特性

• 集成功率 FET 和電流傳感器
• 無需外部阻斷二極管
• 通過外部電阻可編程充電電流
• 充電狀態輸出 (CHG)，用於 LED 或主機接口
• 熱調節和保護
• 深度放電電池預處理
• 自動再充電
• 低壓差操作

典型應用場景

• 便攜式消費電子產品：藍牙音箱、智能手錶、健身追蹤器
• 醫療設備：血糖儀、脈搏血氧儀
• 工業設備：手持終端、數據記錄儀
• 物聯網設備：無線傳感器、智能家居中樞
• 5G 基站輔助電源：備用電池充電
• 汽車儀表板：信息娛樂系統備用電池

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ21040DBVR 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]