BQ24125RHLTG4

Product Overview

Category

BQ24125RHLTG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is commonly used in various electronic devices to efficiently charge lithium-ion batteries.

Characteristics

• High charging efficiency
• Wide input voltage range
• Programmable charge current
• Integrated power FETs
• Thermal regulation and protection
• Battery temperature monitoring

Package

BQ24125RHLTG4 is available in a small outline package (SOP) with a thermal pad for enhanced heat dissipation.

Essence

The essence of BQ24125RHLTG4 lies in its ability to provide a reliable and efficient charging solution for lithium-ion batteries, ensuring optimal performance and extended battery life.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.35V to 26V
• Charge Voltage Range: 3.5V to 4.44V
• Programmable Charge Current: Up to 2A
• Operating Temperature Range: -40°C to +85°C
• Battery Temperature Monitoring Accuracy: ±2°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. TS: Battery temperature sense pin
4. STAT: Charging status indicator pin
5. EN: Enable control pin
6. ISET: Charge current programming pin
7. PROG: Programming pin for various features
8. BAT: Battery connection pin

Functional Features

• Constant current/constant voltage charging
• Automatic power path management
• Thermal regulation and protection
• Charge termination based on battery voltage and temperature
• Charge status indication through STAT pin

Advantages and Disadvantages

Advantages

• High charging efficiency leads to faster charging times
• Wide input voltage range allows compatibility with various power sources
• Programmable charge current enables flexibility in charging different battery capacities
• Integrated power FETs simplify the circuit design
• Thermal regulation and protection ensure safe operation

Disadvantages

• Limited to lithium-ion battery charging applications
• Requires careful consideration of thermal management due to high power dissipation

Working Principles

BQ24125RHLTG4 operates based on a constant current/constant voltage charging algorithm. It regulates the charging current and voltage to ensure optimal charging efficiency while protecting the battery from overcharging or overheating. The integrated power FETs facilitate power path management, allowing simultaneous charging and system operation.

Detailed Application Field Plans

BQ24125RHLTG4 finds extensive use in portable electronic devices such as smartphones, tablets, digital cameras, and portable gaming consoles. It is also employed in power banks, wireless speakers, and other battery-powered devices that require efficient and reliable charging capabilities.

Detailed and Complete Alternative Models

1. BQ24125RGYR: Similar specifications and features, available in a different package (VQFN)
2. BQ24125RHLR: Similar specifications and features, available in a different package (SOP)

These alternative models offer similar functionality and can be considered as replacements for BQ24125RHLTG4 depending on specific application requirements.

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