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BQ2057CSN from TI&BB,Texas Instruments

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BQ2057CSN

Manufacturer: TI&BB

Li-Ion Low-Dropout Linear (4.2V) Charge Management IC For One-Cell Applications With AutoCompTM

Partnumber Manufacturer Quantity Availability
BQ2057CSN TI&BB 1 In Stock

Description and Introduction

Li-Ion Low-Dropout Linear (4.2V) Charge Management IC For One-Cell Applications With AutoCompTM The part **BQ2057CSN** is a **battery charge management IC** manufactured by **Texas Instruments (TI)** and **Benchmarq (BB)**.  

### **Key Specifications:**  
- **Function:** Li-Ion/Li-Polymer battery charge controller  
- **Package:** 8-pin SOIC (SN)  
- **Input Voltage Range:** 4.5V to 18V  
- **Charge Voltage:** Adjustable or fixed (typically 4.1V or 4.2V for Li-Ion)  
- **Charge Current:** Programmable up to 2A  
- **Charge Termination:** Voltage-based with optional safety timer  
- **Features:**  
  - Pre-charge conditioning  
  - Charge status indication  
  - Thermal regulation  
  - Overvoltage protection  

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

(Note: Always verify with the latest datasheet from TI for precise details.)

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