BQ24741RHDT - English Editing Encyclopedia Entry

Product Overview

Category

The BQ24741RHDT belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is specifically designed for battery charging applications in portable electronic devices.

Characteristics

• The BQ24741RHDT offers high efficiency and accurate control over the charging process.
• It supports a wide input voltage range, making it suitable for various power sources.
• This PMIC incorporates advanced safety features to protect the battery and the device from potential hazards.
• It provides flexible charging options and can be easily customized to meet specific requirements.

Package

The BQ24741RHDT is available in a small outline package (SOP) with a thermal pad for efficient heat dissipation.

Essence

The essence of the BQ24741RHDT lies in its ability to efficiently manage the charging process of batteries in portable electronic devices, ensuring optimal performance and safety.

Packaging/Quantity

This PMIC is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 24V
• Charging Voltage Range: Programmable up to 25.2V
• Charging Current Range: Programmable up to 8A
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The BQ24741RHDT has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. ACOK: AC adapter present indicator
4. PGOOD: Power good indicator
5. TS: Thermistor input for temperature monitoring
6. BAT: Battery voltage sense pin
7. SRN: System reset output
8. SDA: I2C data pin
9. SCL: I2C clock pin

Functional Features

• Dynamic Power Management: The BQ24741RHDT adjusts the charging current and voltage based on the battery's state of charge, optimizing the charging process.
• Input Current Limiting: This PMIC regulates the input current to prevent overloading the power source.
• Battery Safety Monitoring: It incorporates various safety features such as overvoltage protection, overcurrent protection, and thermal regulation to ensure safe charging and prevent damage to the battery or device.
• I2C Communication Interface: The BQ24741RHDT supports I2C communication, allowing for easy configuration and monitoring of charging parameters.

Advantages and Disadvantages

Advantages

• High efficiency charging, reducing energy waste
• Wide input voltage range for compatibility with different power sources
• Advanced safety features protect the battery and device
• Customizable charging options for specific requirements

Disadvantages

• Requires additional external components for complete functionality
• Limited availability of alternative models

Working Principles

The BQ24741RHDT operates by regulating the charging current and voltage supplied to the battery. It continuously monitors the battery's state of charge and adjusts the charging parameters accordingly. The PMIC also ensures the input current remains within safe limits and provides various safety mechanisms to protect the battery and device from potential hazards.

Detailed Application Field Plans

The BQ24741RHDT is widely used in portable electronic devices that require efficient and reliable battery charging. Some common application fields include:

1. Smartphones and tablets
2. Laptops and ultrabooks
3. Portable gaming consoles
4. Wearable devices
5. Portable medical devices

Detailed and Complete Alternative Models

While the BQ24741RHDT is a highly capable PMIC, there are alternative models available in the market that offer similar functionalities. Some notable alternatives include:

1. BQ24742RHDT
2. BQ24743RHDT
3. BQ24744RHDT

These alternative models provide similar charging capabilities and safety features, allowing designers to choose the most suitable option for their specific application requirements.

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