BQ771800DPJT TI Battery Protector | 8-WSON(3X4) | 4.35V OVP, 1-4S Li-ion

Product Overview

The BQ771800DPJT is a secondary overvoltage protection IC for 1-series to 4-series Li-ion battery packs. It monitors each cell voltage and triggers an external FET when any cell exceeds the overvoltage threshold. Housed in a compact 8-WSON (3x4mm) package, it offers a fixed overvoltage protection (OVP) threshold of 4.35V with high accuracy. The device features low power consumption and a small footprint, making it ideal for space-constrained battery management systems.

Detailed Technical Specifications

Key Features

• Fixed overvoltage protection threshold of 4.35V
• High accuracy: ±25mV over temperature
• Ultra-low quiescent current: 1.5µA typical
• Supports 1S to 4S Li-ion battery packs
• Open-drain output for driving external N-channel FET
• Small 8-WSON package (3x4mm) for space-saving designs
• Internal hysteresis to prevent oscillation

Target Applications

• 5G base station backup battery packs
• Automotive dashboard battery monitoring
• Portable power tools and garden equipment
• Electric bicycles and scooters
• Medical devices with Li-ion batteries
• Industrial IoT sensor nodes

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for BQ771800DPJT. 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

BQ771800DPJT 是一款用於1至4串鋰離子電池組的二次過壓保護IC。它監控每個電芯的電壓，當任何電芯超過過壓閾值時觸發外部FET。器件採用緊湊的8-WSON（3x4mm）封裝，提供4.35V固定過壓保護（OVP）閾值，精度高。它具有低功耗和小尺寸的特點，非常適合空間受限的電池管理系統。

詳細技術參數

核心特性

• 固定過壓保護閾值4.35V
• 高精度：全溫度範圍±25mV
• 超低靜態電流：典型1.5µA
• 支持1S至4S鋰離子電池組
• 開漏輸出，用於驅動外部N溝道FET
• 小型8-WSON封裝（3x4mm），節省空間
• 內部遲滯防止振盪

典型應用場景

• 5G基站備用電池組
• 汽車儀表板電池監控
• 便攜式電動工具和園林設備
• 電動自行車和滑板車
• 帶鋰離子電池的醫療設備
• 工業物聯網傳感器節點

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 BQ771800DPJT 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]