BQ29729DSER TI Battery Protection IC | 6-WSON (1.5X1.5) | 1-Cell Li-Ion, Overcurrent Protection

Product Overview

The BQ29729DSER from Texas Instruments is a highly integrated, single-cell lithium-ion battery protection IC designed to prevent overcharge, overdischarge, overcurrent, and short-circuit conditions. Housed in a compact 6-pin WSON package (1.5mm x 1.5mm), it offers a complete protection solution for space-constrained portable applications. The device features a low quiescent current of typically 4µA in normal operation and less than 1µA in standby mode, making it ideal for battery-powered devices. With an accuracy of ±25mV for overvoltage detection and ±50mV for undervoltage detection, it ensures reliable battery safety.

Detailed Technical Specifications

Key Features

• Single-cell Li-ion/Li-polymer battery protection
• Programmable overvoltage, undervoltage, and overcurrent thresholds
• Low quiescent current: 4µA (normal), <1µA (standby)
• Integrated charge and discharge FET control
• Short-circuit protection with fast response
• Small 6-pin WSON package (1.5mm x 1.5mm)
• Wide operating temperature range: -40°C to +85°C

Target Applications

• Portable electronics: smartphones, tablets, power banks
• Wearable devices: smartwatches, fitness trackers
• Medical devices: portable monitors, insulin pumps
• Industrial IoT sensors and wireless modules
• 5G base station backup battery packs
• Automotive dashboard battery management

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ29729DSER. 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

BQ29729DSER 是德州儀器（TI）推出的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、過流和短路條件。採用緊湊的 6 引腳 WSON 封裝（1.5mm x 1.5mm），為空間受限的便攜式應用提供完整的保護解決方案。該器件在正常工作時典型靜態電流為 4µA，待機模式下小於 1µA，非常適合電池供電設備。過壓檢測精度為 ±25mV，欠壓檢測精度為 ±50mV，確保可靠的電池安全。

詳細技術參數

核心特性

• 單節鋰離子/鋰聚合物電池保護
• 可編程過壓、欠壓和過流閾值
• 低靜態電流：4µA（正常），<1µA（待機）
• 集成充放電 FET 控制
• 短路保護，響應快速
• 小型 6 引腳 WSON 封裝（1.5mm x 1.5mm）
• 寬工作溫度範圍：-40°C 至 +85°C

典型應用場景

• 便攜式電子產品：智能手機、平板電腦、移動電源
• 可穿戴設備：智能手錶、健身追蹤器
• 醫療設備：便攜式監護儀、胰島素泵
• 工業物聯網傳感器和無線模塊
• 5G 基站備用電池組
• 汽車儀表板電池管理

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ29729DSER 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.
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