BQ24045DSQR

Product Overview

The BQ24045DSQR belongs to the category of battery charge management ICs and is commonly used in portable electronic devices. This IC is known for its high efficiency, small package size, and low power consumption. The BQ24045DSQR is typically available in a small outline integrated circuit (SOIC) package and is designed to provide essential charging functions for single-cell Li-Ion and Li-Polymer batteries.

Basic Information

• Category: Battery Charge Management IC
• Use: Charging single-cell Li-Ion and Li-Polymer batteries
• Characteristics: High efficiency, small package size, low power consumption
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: Efficient and compact battery charging solution
• Packaging/Quantity: Typically supplied in reels or tubes containing a specific quantity per package

Specifications

• Input Voltage Range: 4.5V to 6.5V
• Charge Voltage: 4.2V
• Maximum Charge Current: 1A
• Operating Temperature Range: -40°C to 85°C
• Standby Current: 15µA (typical)

Detailed Pin Configuration

The BQ24045DSQR features a standard pin configuration with pins designated for input voltage, ground, battery connection, and status indicators. The detailed pin configuration is as follows: 1. VIN (Input Voltage) 2. GND (Ground) 3. TS (Thermal Sense) 4. BAT (Battery Connection) 5. PG (Charge Status Indicator) 6. STAT (Charge Status Indicator) 7. PROG (Charge Current Programming) 8. ISET (Charge Current Setting)

Functional Features

• Integrated Power FET for High Efficiency
• Thermal Regulation and Protection
• Programmable Charge Current
• Charge Status Indicators
• Automatic Recharge

Advantages and Disadvantages

Advantages

• High efficiency charging
• Compact package size
• Low standby current
• Flexible charge current programming

Disadvantages

• Limited to single-cell battery charging
• Requires external thermal management for high current applications

Working Principles

The BQ24045DSQR operates by regulating the input voltage to provide a constant current and constant voltage charging profile for the connected Li-Ion or Li-Polymer battery. It incorporates thermal regulation to ensure safe and efficient charging under various operating conditions.

Detailed Application Field Plans

The BQ24045DSQR is widely used in portable electronic devices such as smartphones, tablets, portable media players, and handheld gaming consoles. Its compact size and efficient charging capabilities make it suitable for space-constrained applications where reliable battery charging is essential.

Detailed and Complete Alternative Models

• BQ24040DSQR
• BQ24070RHLR
• BQ24072RHLR
• BQ24074RHLR

In conclusion, the BQ24045DSQR is a versatile battery charge management IC that offers high efficiency and compact design, making it an ideal choice for portable electronic devices requiring reliable and efficient battery charging.

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