BQ29728DSET TI Battery Protection IC | 6-WSON (1.5X1.5) | 1-Cell Li-Ion, Overcurrent Protection

Product Overview

The BQ29728DSET from Texas Instruments is a highly integrated, single-cell lithium-ion battery protection IC designed to prevent overcharge, overdischarge, and overcurrent conditions. Housed in a compact 6-pin WSON package (1.5mm x 1.5mm), it offers a space-saving solution for portable and space-constrained applications. The device features a precision voltage detection circuit and a built-in delay circuit to ensure reliable protection. With a low quiescent current of typically 1.5µA in normal operation and 0.5µA in standby, it minimizes battery drain. The BQ29728DSET is ideal for protecting single-cell Li-Ion or Li-Polymer battery packs in various consumer, industrial, and medical devices.

Detailed Technical Specifications

Key Features

• Precision overcharge, overdischarge, and overcurrent protection for single-cell Li-Ion/Li-Polymer batteries
• Low quiescent current: 1.5µA typical in normal operation, 0.5µA in standby
• Built-in delay circuits for each protection feature
• Small 6-pin WSON package (1.5mm x 1.5mm) for space-constrained designs
• Wide operating temperature range: -40°C to +85°C
• Charge overcurrent and short circuit protection
• Automatic release after fault conditions

Target Applications

• Portable consumer electronics: smartphones, tablets, Bluetooth headsets, power banks
• Medical devices: portable patient monitors, insulin pumps, hearing aids
• Industrial equipment: handheld terminals, data loggers, wireless sensors
• IoT devices: smart watches, fitness trackers, GPS trackers
• Battery packs for 5G base stations (backup batteries)
• Automotive: dashboard cameras, tire pressure monitoring systems (TPMS)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ29728DSET. 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

德州儀器（TI）的BQ29728DSET是一款高度集成的單節鋰離子電池保護IC，旨在防止過充、過放和過流情況。該器件採用緊湊的6引腳WSON封裝（1.5mm x 1.5mm），為便攜式和空間受限的應用提供了節省空間的解決方案。它具有精密的電壓檢測電路和內置延時電路，確保可靠的保護。正常工作時靜態電流典型值為1.5µA，待機時為0.5µA，最大限度地減少了電池消耗。BQ29728DSET非常適合保護各種消費、工業和醫療設備中的單節鋰離子或鋰聚合物電池組。

詳細技術參數

核心特性

• 精確的過充、過放和過流保護，適用於單節鋰離子/鋰聚合物電池
• 低靜態電流：正常工作時典型值1.5µA，待機時0.5µA
• 每種保護功能均內置延時電路
• 小型6引腳WSON封裝（1.5mm x 1.5mm），適合空間受限的設計
• 寬工作溫度範圍：-40°C 至 +85°C
• 充電過流和短路保護
• 故障條件後自動釋放

典型應用場景

• 便攜式消費電子產品：智能手機、平板電腦、藍牙耳機、移動電源
• 醫療設備：便攜式病人監護儀、胰島素泵、助聽器
• 工業設備：手持終端、數據記錄儀、無線傳感器
• 物聯網設備：智能手錶、健身追蹤器、GPS追蹤器
• 5G基站備用電池組
• 汽車：行車記錄儀、胎壓監測系統（TPMS）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ29728DSET 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]