BQ24202DGNG4 - English Editing Encyclopedia Entry

Product Overview

Category

BQ24202DGNG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging lithium-ion batteries in various electronic devices such as smartphones, tablets, and portable electronics.

Characteristics

• Input voltage range: 3.9V to 6.45V
• Output voltage range: 3.9V to 6.2V
• Charging current: Up to 2A
• Programmable charge current limit
• Thermal regulation and protection
• Overvoltage protection
• Battery temperature monitoring
• Integrated power path management

Package

BQ24202DGNG4 is available in a small form factor package known as MSOP-10. This package offers compactness and ease of integration into space-constrained designs.

Essence

The essence of BQ24202DGNG4 lies in its ability to efficiently and safely charge lithium-ion batteries while providing essential protection features.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 3.9V to 6.45V
• Output Voltage Range: 3.9V to 6.2V
• Charging Current: Up to 2A
• Charge Termination: Programmable
• Preconditioning: Yes
• Thermal Regulation: Yes
• Overvoltage Protection: Yes
• Battery Temperature Monitoring: Yes
• Power Path Management: Yes
• Package Type: MSOP-10

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. TS: Thermistor input for battery temperature monitoring
4. STAT: Status output pin
5. PG: Power good output pin
6. ISET: Charge current programming pin
7. PROG: Charge termination and preconditioning programming pin
8. VBUS: USB input voltage pin
9. SDA: I2C data pin
10. SCL: I2C clock pin

Functional Features

• Programmable charge current limit allows flexibility in charging different battery capacities.
• Thermal regulation ensures safe operation by adjusting the charging current based on temperature.
• Overvoltage protection prevents damage to the battery and connected devices.
• Battery temperature monitoring enables efficient charging while preventing overheating.
• Integrated power path management allows simultaneous charging and discharging.

Advantages and Disadvantages

Advantages

• High charging efficiency
• Compact package size
• Comprehensive protection features
• Flexible charge current programming
• Integrated power path management for uninterrupted device usage during charging

Disadvantages

• Limited to lithium-ion battery charging applications
• Requires additional external components for complete charging system implementation

Working Principles

BQ24202DGNG4 operates based on a switching regulator topology combined with advanced charging algorithms. It regulates the charging current and voltage to ensure optimal charging efficiency while protecting the battery from overcharging, overvoltage, and excessive temperature.

The integrated power path management feature allows the device to prioritize the power source between the battery and the input supply, enabling continuous device operation even during charging.

Detailed Application Field Plans

BQ24202DGNG4 finds extensive application in various portable electronic devices, including but not limited to: - Smartphones - Tablets - Wearable devices - Portable gaming consoles - Bluetooth speakers - Digital cameras

Its compact size, high charging efficiency, and comprehensive protection features make it an ideal choice for these applications.

Detailed and Complete Alternative Models

1. BQ24210: Similar functionality with additional USB On-The-Go (OTG) support.
2. BQ24230: Higher charging current capability of up to 3A.
3. BQ24250: Integrated USB Type-C detection and configuration.

These alternative models offer similar features with slight variations in specifications, catering to different application requirements.

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