BQ21040DBVT - Texas Instruments

Manufacturer Part Number

BQ21040DBVT

Manufacturer

Texas Instruments

Introduction

The BQ21040DBVT is a compact, high-efficiency, lithium-ion/polymer battery charger designed for a wide range of portable applications. It is provided in a small SOT-23-6 package.

Product Features and Performance

Designed for Lithium Ion/Polymer batteries

Supports a single cell configuration

Constant charge current up to 800mA

Offers Over Temperature, Over Voltage, and Short Circuit protection

Programmable charging parameters are not supported to simplify the design

Operates effectively within a supply voltage range of up to 6.45V

Features USB interface for charging

Can operate within a wide temperature range of 0°C to 125°C

Product Advantages

High efficiency charging extends battery life

Compact SOT-23-6 package saves board space

Integrated fault protection enhances safety

Ease of integration with USB power sources

Wide operating temperature range suitable for various environments

Key Technical Parameters

Battery Chemistry: Lithium Ion/Polymer

Number of Cells: 1

Constant Charging Current: Programmable up to 800mA

Maximum Charge Current: 800mA

Battery Pack Voltage: 4.2V

Voltage Supply (Max): 6.45V

Operating Temperature Range: 0°C ~ 125°C (TJ)

Quality and Safety Features

Over Temperature protection

Over Voltage protection

Short Circuit protection

Compatibility

Suitable for use with single-cell lithium-ion or polymer batteries

USB interface enables compatibility with various USB power sources

Application Areas

Portable Consumer Electronics

Handheld Devices

Wireless Headsets

Small IoT Devices

Product Lifecycle

The product status is Active, indicating ongoing production and availability

No current indication of nearing discontinuation, ensuring continued support and availability

Several Key Reasons to Choose This Product

Texas Instruments' reliability and support

High charging efficiency for extended battery life

Compact and space-saving design

Integrated protection features for enhanced safety

Broad application versatility due to wide operation temperature and compatibility with common power sources

Active product lifecycle status ensures long-term availability and support