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BQ2057SN from TI,TI,Texas Instruments

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BQ2057SN

Manufacturer: TI,TI

Li-Ion Low-Dropout Linear (4.1V) Charge Management IC For One-Cell Applications With AutoCompTM

Partnumber Manufacturer Quantity Availability
BQ2057SN TI,TI 5 In Stock

Description and Introduction

Li-Ion Low-Dropout Linear (4.1V) Charge Management IC For One-Cell Applications With AutoCompTM The BQ2057SN is a battery charge management IC manufactured by Texas Instruments (TI). Below are the factual specifications from TI's knowledge base:

1. **Function**: Battery charge controller for single-cell Li-Ion or Li-Polymer batteries.
2. **Charge Method**: Linear charge control.
3. **Input Voltage Range**: 4.5V to 18V.
4. **Charge Voltage**: Adjustable or fixed (typically 4.2V for Li-Ion).
5. **Charge Current**: Programmable up to 2A.
6. **Features**:
   - Pre-charge conditioning.
   - Charge termination based on current level.
   - Automatic recharge.
   - Charge status indication.
7. **Package**: 8-pin SOIC (SN package).
8. **Protections**:
   - Overvoltage protection.
   - Reverse polarity protection.
   - Thermal regulation.
9. **Operating Temperature Range**: -40°C to +85°C.
10. **Applications**: Portable electronics, handheld devices, and backup power systems.

For exact details, refer to the official TI datasheet for the BQ2057SN.

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