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BQ2057W from TI/BB,Texas Instruments

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BQ2057W

Manufacturer: TI/BB

Li-Ion Low-Dropout Linear (8.4V) Charge Management IC For Two-Cell Applications With AutoCompTM

Partnumber Manufacturer Quantity Availability
BQ2057W TI/BB 11 In Stock

Description and Introduction

Li-Ion Low-Dropout Linear (8.4V) Charge Management IC For Two-Cell Applications With AutoCompTM The part BQ2057W is manufactured by Texas Instruments (TI) and is part of their battery management product line. Below are the key specifications for the BQ2057W:  

- **Function**: Standalone lithium-ion (Li-Ion) or lithium-polymer (Li-Pol) battery charge management IC.  
- **Charge Voltage**: Adjustable or fixed options (typically 4.1V or 4.2V per cell).  
- **Charge Current**: Programmable via an external resistor.  
- **Charge Termination**: Automatic (based on voltage and current thresholds).  
- **Input Voltage Range**: Typically supports 4.5V to 18V (for adapter input).  
- **Package**: 8-pin SOIC (Small Outline Integrated Circuit).  
- **Features**:  
  - Pre-charge qualification for deeply discharged cells.  
  - Charge status outputs (LED or host signaling).  
  - Thermal regulation for safe operation.  
  - Optional temperature monitoring for battery safety.  

For exact values (e.g., current limits, voltage tolerances), refer to the official **TI/BB datasheet**.  

Would you like a direct link to the datasheet?

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