BQ27421YZFR-G1B TI Battery Fuel Gauge | 9-DSBGA | I2C, 1-Cell Li-Ion

Product Overview

The BQ27421YZFR-G1B is a single-cell Li-Ion battery fuel gauge IC from Texas Instruments, designed for portable applications requiring accurate battery state-of-charge monitoring. It integrates a voltage-based fuel gauge algorithm with minimal external components, making it ideal for space-constrained designs. The device communicates via I2C interface and is available in a compact 9-DSBGA package.

Detailed Technical Specifications

Key Features

• Voltage-based fuel gauge with integrated algorithm
• Low power consumption: <1µA in sleep mode
• No external sense resistor required
• I2C interface for data readout
• Compact 9-DSBGA package for space-constrained designs
• Supports battery capacity up to 2000mAh

Target Applications

• Smartphones and tablets
• Wearable devices (e.g., smartwatches, fitness trackers)
• Portable medical devices (e.g., glucose meters, pulse oximeters)
• IoT sensors and wireless modules
• Bluetooth headsets and earbuds

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ27421YZFR-G1B. 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

BQ27421YZFR-G1B 是德州儀器（TI）推出的單節鋰離子電池電量計 IC，專為需要精確電池電量監控的便攜式應用而設計。它集成了基於電壓的電量計算法，所需外部元件極少，非常適合空間受限的設計。該器件通過 I2C 接口通信，採用緊湊的 9-DSBGA 封裝。

詳細技術參數

核心特性

• 基於電壓的電量計，集成算法
• 低功耗：休眠模式 <1µA
• 無需外部檢測電阻
• I2C 接口讀取數據
• 緊湊的 9-DSBGA 封裝，適合空間受限設計
• 支持高達 2000mAh 的電池容量

典型應用場景

• 智能手機和平板電腦
• 可穿戴設備（如智能手錶、健身追蹤器）
• 便攜式醫療設備（如血糖儀、脈搏血氧儀）
• 物聯網傳感器和無線模塊
• 藍牙耳機和耳塞

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ27421YZFR-G1B 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]