BQ2057CSN - Texas Instruments

Manufacturer Part Number

BQ2057CSN

Manufacturer

Texas Instruments

Introduction

The BQ2057CSN is a dedicated integrated circuit (IC) designed for power management, specifically for battery charging applications targeting Lithium Ion and Lithium Polymer batteries.

Product Features and Performance

Designed for Lithium Ion/Polymer battery chemistry

Supports a single cell configuration

Adjustable charging current through programmable features

Provides a constant current charging profile

Integrates safety features although specific fault protection is not specified

Suitable for battery pack voltages of 4.2V

Can operate with supply voltages up to 15V

Suited for applications within the operating temperature range of -20°C to 70°C

Surface-mount 8-SOIC device, convenient for PCB design and manufacturing

Product Advantages

Precision charging for Lithium-based batteries to ensure longevity and performance

Programmable charge current to fit specific application requirements

Wide voltage supply range for compatibility with various power supplies

Support for industry-standard temperatures, ensuring reliability in various working environments

Key Technical Parameters

Battery Chemistry: Lithium Ion/Polymer

Number of Cells: 1

Current Charging: Constant Programmable

Battery Pack Voltage: 4.2V

Voltage Supply (Max): 15V

Operating Temperature: -20°C ~ 70°C

Mounting Type: Surface Mount

Package/Case: 8-SOIC

Quality and Safety Features

The BQ2057CSN includes inherent safety and quality features due to its design for battery management, though specific fault protection parameters are not detailed.

Compatibility

Compatible with Lithium Ion and Lithium Polymer single-cell battery packs

Adaptable to various power supply voltages up to 15V

Mountable on standard PCBs with 8-SOIC footprint

Application Areas

Portable Electronics

Consumer Electronics

Battery-Powered Devices

Power Banks

Product Lifecycle

The product status is active, indicating it is currently in production.

No indication of discontinuation at the moment, with expected continued availability of replacements or upgrades.

Several Key Reasons to Choose This Product

High-quality integrated circuit from Texas Instruments, a reputable manufacturer in the semiconductor industry.

Customizable charging parameters to match specific battery requirements.

Wide operating voltage range to work with various power inputs.

Appropriate for standard operating temperature ranges found in typical consumer electronic environments.

Convenient form factor for easy integration into PCB designs.

Active product lifecycle means continued support and availability for future projects.