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Product Overview
The BQ25798RQMR from Texas Instruments is a highly integrated, 1-4 cell buck-boost battery charge controller with I2C interface. It supports a wide input voltage range from 3.6V to 24V and provides up to 5A charge current. The device features dual-input power path management, allowing seamless transition between USB and adapter power sources. With its compact 29-VQFN-HR (4x4 mm) package, it is ideal for space-constrained applications.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
3.6V to 24V |
| Max Charge Current |
5A |
| Battery Cells |
1 to 4 (Li-Ion/Li-Polymer) |
| Switching Frequency |
1.5 MHz |
| Interface |
I2C (up to 400 kHz) |
| Charge Voltage Accuracy |
±0.5% |
| Charge Current Accuracy |
±3% |
| Operating Temperature |
-40°C to +85°C |
| Package |
29-VQFN-HR (4x4 mm) |
Key Features
- Buck-boost topology for flexible input/output voltage
- Dual-input power path management (USB and adapter)
- I2C programmable charge parameters
- High efficiency up to 97%
- Integrated safety features: thermal regulation, overvoltage protection, and battery temperature monitoring
- Low quiescent current (20 µA in ship mode)
Target Applications
- 5G base stations (e.g., backup battery charging)
- Portable medical devices (e.g., patient monitors)
- Industrial handheld terminals (e.g., barcode scanners)
- Smart home hubs (e.g., Amazon Echo)
- Power banks and portable chargers
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
BQ25798RQMR. 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
BQ25798RQMR 是德州儀器(TI)推出的一款高度集成的 1-4 節電池升降壓充電控制器,支持 I2C 接口。其輸入電壓範圍為 3.6V 至 24V,最大充電電流可達 5A。該器件具有雙輸入電源路徑管理功能,可在 USB 和適配器電源之間無縫切換。採用緊湊的 29-VQFN-HR(4x4 mm)封裝,非常適合空間受限的應用。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
3.6V 至 24V |
| 最大充電電流 |
5A |
| 電池節數 |
1 至 4(鋰離子/鋰聚合物) |
| 開關頻率 |
1.5 MHz |
| 接口 |
I2C(最高 400 kHz) |
| 充電電壓精度 |
±0.5% |
| 充電電流精度 |
±3% |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
29-VQFN-HR(4x4 mm) |
核心特性
- 升降壓拓撲,靈活的輸入/輸出電壓
- 雙輸入電源路徑管理(USB 和適配器)
- I2C 可編程充電參數
- 高效率,最高可達 97%
- 集成安全功能:熱調節、過壓保護和電池溫度監控
- 低靜態電流(休眠模式下 20 µA)
典型應用場景
- 5G 基站(例如備用電池充電)
- 便攜式醫療設備(例如病人監護儀)
- 工業手持終端(例如條碼掃描器)
- 智能家居中樞(例如 Amazon Echo)
- 移動電源和便攜式充電器
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 BQ25798RQMR 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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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。
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。
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