BQ24072RGTR

Product Overview

Category

BQ24072RGTR belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is commonly used in portable electronic devices, such as smartphones, tablets, and wearable devices, to efficiently charge lithium-ion batteries.

Characteristics

• High charging efficiency
• Compact size
• Low power consumption
• Fast charging capability
• Overvoltage and overcurrent protection

Package

BQ24072RGTR is available in a small outline transistor (SOT) package, which ensures ease of integration into various electronic devices.

Essence

The essence of BQ24072RGTR 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, with each reel containing a specific quantity of BQ24072RGTR ICs. The exact quantity per reel may vary depending on the manufacturer's specifications.

Specifications

• Input voltage range: 4.35V - 6.45V
• Charging current: Up to 1.5A
• Programmable charge termination voltage
• Thermal regulation and protection
• Battery temperature monitoring
• Integrated power FETs

Detailed Pin Configuration

1. VBUS: Input voltage from the USB port or external power source.
2. GND: Ground reference for the IC.
3. STAT: Status output pin indicating charging status.
4. PG: Power good output indicating successful charging completion.
5. TS: Battery temperature sense input.
6. BAT: Battery positive terminal connection.
7. SYS: System load output.
8. PROG: Programming pin for setting charge termination voltage.

Functional Features

• Constant current and constant voltage charging modes
• Automatic recharge initiation after battery discharge
• Charge termination based on programmable voltage threshold
• Thermal regulation to prevent overheating
• Battery temperature monitoring for safety

Advantages and Disadvantages

Advantages

• High charging efficiency ensures faster battery charging.
• Compact size allows for easy integration into small electronic devices.
• Low power consumption minimizes energy wastage.
• Overvoltage and overcurrent protection safeguards the battery and device.
• Fast charging capability reduces downtime.

Disadvantages

• Limited compatibility with certain battery chemistries.
• Requires careful programming of charge termination voltage for optimal performance.

Working Principles

BQ24072RGTR operates by regulating the charging current and voltage supplied to the lithium-ion battery. It employs a constant current mode initially to rapidly charge the battery until a predefined voltage threshold is reached. The charger then switches to constant voltage mode, maintaining a steady voltage while reducing the charging current. This prevents overcharging and ensures the battery reaches its maximum capacity safely.

Detailed Application Field Plans

BQ24072RGTR finds extensive application in various portable electronic devices, including smartphones, tablets, smartwatches, and wireless earphones. Its compact size, high charging efficiency, and comprehensive protection features make it an ideal choice for manufacturers aiming to provide reliable and fast charging solutions for their products.

Detailed and Complete Alternative Models

1. BQ24075RGTR: Similar to BQ24072RGTR, but with additional support for USB On-The-Go (OTG) functionality.
2. BQ24074RGTR: Offers similar features as BQ24072RGTR, but with a higher charging current capability of up to 2A.
3. BQ24073RGTR: Provides comparable functionality to BQ24072RGTR, but with enhanced thermal management capabilities.

These alternative models offer similar charging functionalities while catering to specific requirements or offering additional features based on the intended application.

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