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BQ2057CSNTRG4 from TI/BB,Texas Instruments

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BQ2057CSNTRG4

Manufacturer: TI/BB

Low Dropout Linear 1-cell Li-Ion Charge Controller with AutoCompTM, 4.2V 8-SOIC -20 to 70

Partnumber Manufacturer Quantity Availability
BQ2057CSNTRG4 TI/BB 231 In Stock

Description and Introduction

Low Dropout Linear 1-cell Li-Ion Charge Controller with AutoCompTM, 4.2V 8-SOIC -20 to 70 The part **BQ2057CSNTRG4** is manufactured by **Texas Instruments (TI)/Benchmarq (BB)**.  

### Key Specifications:  
- **Function**: Battery Charge Management IC  
- **Battery Chemistry**: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)  
- **Number of Cells**: 1  
- **Charge Current**: Programmable up to 1.5A  
- **Input Voltage Range**: 4.5V to 26V  
- **Charge Voltage**: 4.1V or 4.2V (adjustable)  
- **Package**: 8-pin SOIC (SN)  
- **Operating Temperature Range**: -40°C to +85°C  
- **Features**:  
  - Pre-charge conditioning  
  - Charge termination by minimum current  
  - Thermal regulation  
  - Fault detection (overvoltage, overcurrent)  
  - LED status indicators  

This IC is designed for single-cell Li-Ion/Li-Pol battery charging applications.

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