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Product Overview
The BQ2002CSN-SITR from Texas Instruments is a high-performance, low-dropout (LDO) linear battery charger IC designed for fast charging of NiCd and NiMH batteries. It integrates a constant-current/constant-voltage (CC/CV) charging algorithm with a programmable charge current up to 1A, making it ideal for portable and industrial applications. The device operates from a 4.5V to 5.5V supply and features automatic charge termination, temperature monitoring, and a charge status output.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
4.5V to 5.5V |
| Charge Current (Max) |
1A (programmable) |
| Battery Chemistry |
NiCd, NiMH |
| Charge Algorithm |
Constant Current / Constant Voltage |
| Charge Termination |
Negative Delta Voltage (-ΔV) and Temperature |
| Operating Temperature |
-40°C to +85°C |
| Package |
SOIC-8 |
| Quiescent Current |
2.5 mA (typical) |
Key Features
- Fast charge with programmable current up to 1A
- Automatic charge termination via -ΔV and temperature monitoring
- Low dropout voltage (LDO) for efficient charging
- Charge status output (open-drain)
- Thermal shutdown protection
- Reverse leakage protection
- Small SOIC-8 package
Target Applications
- Portable medical devices (e.g., blood glucose meters, pulse oximeters)
- Industrial handheld terminals (e.g., barcode scanners, data loggers)
- Consumer electronics (e.g., digital cameras, portable gaming devices)
- 5G base station backup battery chargers
- Automotive dashboard battery management
- Wireless sensor nodes
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
BQ2002CSN-SITR. 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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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
BQ2002CSN-SITR 是德州儀器 (TI) 推出的一款高性能、低壓差 (LDO) 線性電池充電器 IC,專為鎳鎘 (NiCd) 和鎳氫 (NiMH) 電池的快速充電而設計。它集成了恆流/恆壓 (CC/CV) 充電算法,可編程充電電流高達 1A,非常適合便攜式和工業應用。該器件在 4.5V 至 5.5V 電源下工作,具有自動充電終止、溫度監控和充電狀態輸出功能。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
4.5V 至 5.5V |
| 充電電流 (最大) |
1A (可編程) |
| 電池化學類型 |
NiCd, NiMH |
| 充電算法 |
恆流 / 恆壓 |
| 充電終止方式 |
負電壓變化 (-ΔV) 和溫度 |
| 工作溫度範圍 |
-40°C 至 +85°C |
| 封裝 |
SOIC-8 |
| 靜態電流 |
2.5 mA (典型值) |
核心特性
- 快速充電,可編程電流高達 1A
- 通過 -ΔV 和溫度監控自動終止充電
- 低壓差 (LDO) 設計,充電效率高
- 充電狀態輸出 (開漏)
- 熱關斷保護
- 反向漏電保護
- 小型 SOIC-8 封裝
典型應用場景
- 便攜式醫療設備 (例如血糖儀、脈搏血氧儀)
- 工業手持終端 (例如條碼掃描器、數據記錄器)
- 消費電子產品 (例如數碼相機、便攜遊戲機)
- 5G 基站備用電池充電器
- 汽車儀表板電池管理
- 無線傳感器節點
環球供應鏈與批發合作夥伴方案
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