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Product Overview
The BQ78412DDWT is a highly integrated battery management IC from Texas Instruments, designed for multi-chemistry battery packs. It supports SBS 1.1 compliant data communication and provides accurate monitoring of voltage, current, temperature, and charge/discharge cycles. Housed in a 44-pin HTSSOP package, it is ideal for space-constrained applications requiring precise battery management.
Detailed Technical Specifications
| Parameter |
Value |
| Chemistry Support |
Li-Ion, Li-Polymer, NiMH, NiCd, Lead Acid |
| Communication Interface |
SMBus v1.1 (SBS 1.1) |
| Voltage Measurement Range |
0 to 5 V per cell (up to 4 cells) |
| Current Measurement Range |
±64 mV sense resistor (programmable gain) |
| Temperature Measurement |
Internal and external thermistor |
| Operating Temperature |
-40°C to +85°C |
| Package |
44-HTSSOP |
| Supply Voltage |
4.5 V to 26 V |
| Accuracy |
±1% voltage, ±2% current (typical) |
Key Features
- Multi-chemistry support for flexible battery pack design
- SBS 1.1 compliant for standard battery data reporting
- Integrated Coulomb counter for accurate state-of-charge
- Programmable alarm and protection features
- Low power consumption for extended battery life
- Compact 44-HTSSOP package for space-saving designs
Target Applications
- 5G base station backup batteries
- Automotive dashboard battery monitoring
- Medical portable equipment
- Industrial handheld terminals
- Energy storage systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
BQ78412DDWT. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
BQ78412DDWT 是德州儀器推出的一款高度集成的電池管理 IC,支持多種化學成分的電池組。它符合 SBS 1.1 標準的數據通信協議,能夠精確監測電壓、電流、溫度以及充放電次數。採用 44 引腳 HTSSOP 封裝,適用於對空間有嚴格要求的精密電池管理應用。
詳細技術參數
| 參數 |
數值 |
| 支持的電池化學成分 |
鋰離子、鋰聚合物、鎳氫、鎳鎘、鉛酸 |
| 通信接口 |
SMBus v1.1 (SBS 1.1) |
| 電壓測量範圍 |
每節電池 0 至 5 V(最多 4 節) |
| 電流測量範圍 |
±64 mV 檢測電阻(可編程增益) |
| 溫度測量 |
內部和外部熱敏電阻 |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
44-HTSSOP |
| 供電電壓 |
4.5 V 至 26 V |
| 精度 |
電壓 ±1%,電流 ±2%(典型值) |
核心特性
- 支持多種化學成分,靈活設計電池組
- 符合 SBS 1.1 標準,實現標準化電池數據報告
- 集成庫侖計數器,精確計算電量狀態
- 可編程報警和保護功能
- 低功耗設計,延長電池續航
- 緊湊的 44-HTSSOP 封裝,節省空間
典型應用場景
- 5G 基站備用電池
- 汽車儀表盤電池監控
- 醫療便攜設備
- 工業手持終端
- 儲能系統
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 BQ78412DDWT 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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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。
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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。
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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。
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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。
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