BQ24040DSQR

Product Overview

The BQ24040DSQR belongs to the category of battery charge management ICs. It is commonly used in portable electronic devices such as smartphones, tablets, and portable media players. The BQ24040DSQR is known for its efficient charging characteristics, compact package, and versatile applications. It is typically available in a small outline package (DSQR) and is designed to provide essential charging functions for various battery-powered devices.

Basic Information

• Category: Battery Charge Management IC
• Use: Charging lithium-ion or lithium-polymer batteries in portable electronic devices
• Characteristics: Efficient charging, compact package, versatile applications
• Package: Small Outline Package (DSQR)
• Essence: Essential charging functions for battery-powered devices
• Packaging/Quantity: Typically supplied in tape and reel packaging with a specific quantity per reel

Specifications

• Input Voltage Range: 4.35V to 6.5V
• Maximum Charge Current: 1.5A
• Termination Current: 10% of the maximum charge current
• Preconditioning Current: 10% of the maximum charge current
• Trickle Charge Current: 1/10 of the preconditioning current
• Battery Regulation Voltage: 4.2V ±1%
• Thermal Regulation: 125°C

Detailed Pin Configuration

The BQ24040DSQR features a standard pin configuration with input, output, and control pins. The detailed pin configuration is as follows: 1. VIN (Input voltage) 2. TS (Thermal regulation) 3. PROG (Charge current programming) 4. STAT (Charge status output) 5. CE (Charge enable) 6. BAT (Battery connection) 7. GND (Ground) 8. SYS (System power)

Functional Features

• Integrated power FET for high-efficiency charging
• Programmable charge current
• Thermal regulation and protection
• Charge status indication
• Automatic recharge
• Under-voltage lockout

Advantages and Disadvantages

Advantages

• High charging efficiency
• Compact package
• Versatile applications
• Programmable charge current for flexibility
• Comprehensive thermal regulation and protection

Disadvantages

• Limited to lithium-ion and lithium-polymer battery charging
• May require external components for specific applications

Working Principles

The BQ24040DSQR operates by regulating the charging current and voltage to ensure safe and efficient charging of lithium-ion or lithium-polymer batteries. It utilizes an integrated power FET to minimize power dissipation and maximize charging efficiency. The device also incorporates thermal regulation to prevent overheating during charging, ensuring the safety of the battery and the surrounding electronics.

Detailed Application Field Plans

The BQ24040DSQR is widely used in the design and development of portable electronic devices, including but not limited to: - Smartphones - Tablets - Portable media players - Wearable devices - Portable medical devices

Detailed and Complete Alternative Models

• BQ24070RHLR
• BQ24105RGER
• BQ24250CAYT

In conclusion, the BQ24040DSQR is a versatile and efficient battery charge management IC suitable for a wide range of portable electronic devices. Its compact package, programmable features, and comprehensive protection mechanisms make it an ideal choice for designers seeking reliable and flexible charging solutions.

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