BQ27621YZFR-G1A TI Battery Fuel Gauge | 9-DSBGA | Impedance Track, 1-Cell Li-Ion

Product Overview

The BQ27621YZFR-G1A is a single-cell Li-Ion battery fuel gauge IC from Texas Instruments, featuring Impedance Track™ technology for high-accuracy battery state-of-charge (SOC) monitoring. Housed in a compact 9-pin DSBGA package (0.8mm x 0.8mm), it is ideal for space-constrained portable applications. The device integrates a low-power microcontroller, precision analog peripherals, and a voltage-based fuel gauge algorithm that automatically compensates for battery aging, temperature, and discharge rate.

Detailed Technical Specifications

Key Features

• Impedance Track™ technology for accurate SOC reporting over battery lifetime
• Low power consumption: 12 µA sleep, 0.5 µA ship mode
• I²C interface for data readout and configuration
• Integrated temperature sensing and protection
• Small 9-DSBGA package for space-constrained designs
• Supports battery health monitoring and cycle count

Target Applications

• Smartphones and tablets
• Wearable devices (smartwatches, fitness trackers)
• Portable medical devices (glucose meters, pulse oximeters)
• Wireless headphones and earbuds
• IoT sensors and beacons
• 5G base station backup battery monitoring
• Automotive dashboard battery status

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ27621YZFR-G1A. 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

BQ27621YZFR-G1A 是德州儀器（TI）推出的單節鋰離子電池電量計 IC，採用 Impedance Track™ 技術，可實現高精度的電池荷電狀態（SOC）監測。該器件採用緊湊的 9 引腳 DSBGA 封裝（0.8mm x 0.8mm），非常適合空間受限的便攜式應用。它集成了低功耗微控制器、精密模擬外設和基於電壓的電量計算法，可自動補償電池老化、溫度和放電速率。

詳細技術參數

核心特性

• Impedance Track™ 技術，在電池整個使用壽命內提供準確的 SOC 報告
• 低功耗：休眠 12 µA，運輸模式 0.5 µA
• I²C 接口用於數據讀取和配置
• 集成溫度檢測和保護
• 小型 9-DSBGA 封裝，適合空間受限設計
• 支持電池健康監測和循環計數

典型應用場景

• 智能手機和平板電腦
• 可穿戴設備（智能手錶、健身追蹤器）
• 便攜醫療設備（血糖儀、脈搏血氧儀）
• 無線耳機和耳塞
• 物聯網傳感器和信標
• 5G 基站備用電池監控
• 汽車儀表盤電池狀態

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ27621YZFR-G1A 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]