BQ24261MRGER

Product Overview

Category

BQ24261MRGER 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

• Integrated circuit for battery charging
• Supports fast charging protocols
• High efficiency power management
• Compact and lightweight design
• Advanced safety features

Package

BQ24261MRGER is available in a small outline package (SOP) with 20 pins. The package provides excellent thermal performance and ease of integration into different electronic systems.

Essence

The essence of BQ24261MRGER lies in its ability to efficiently charge lithium-ion batteries while ensuring safety and reliability.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Input voltage range: 4.35V to 6.45V
• Charging current: Up to 3A
• Programmable charge termination current
• Battery temperature monitoring
• Overvoltage and overcurrent protection
• Thermal regulation and protection

Detailed Pin Configuration

1. VBUS: Input voltage from the USB port
2. PGND: Power ground
3. STAT: Charging status indicator output
4. TS: Battery temperature sense input
5. ISET: Charge current programming pin
6. EN: Enable control pin
7. CE: Charger enable input
8. SRN: System reset output
9. SDA: I2C data line
10. SCL: I2C clock line
11. BAT: Battery positive terminal
12. VSS: Ground
13. VOUT: Output voltage to the battery
14. VREGN: Negative voltage regulator output
15. VREGP: Positive voltage regulator output
16. TS/NTC: Battery temperature sense input or NTC thermistor input
17. INT: Interrupt output
18. IINDPM: Input current limit programming pin
19. ILIM: Input current limit detection pin
20. VIN: Input voltage

Functional Features

• Fast charging support for various protocols (e.g., USB BC1.2, Apple, and Chinese fast charge)
• Automatic power source detection
• Dynamic power management for optimal charging efficiency
• Thermal regulation to prevent overheating
• Charge termination based on programmable current threshold
• Safety features such as overvoltage and overcurrent protection

Advantages and Disadvantages

Advantages

• High charging efficiency
• Compact and lightweight design
• Wide input voltage range
• Supports multiple fast charging protocols
• Advanced safety features ensure reliable charging

Disadvantages

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

Working Principles

BQ24261MRGER operates by regulating the charging current and voltage supplied to the lithium-ion battery. It detects the type of power source and adjusts the charging parameters accordingly. The IC monitors the battery temperature and ensures safe charging by implementing thermal regulation and protection mechanisms. The charge termination is based on a programmable current threshold, preventing overcharging and maximizing battery life.

Detailed Application Field Plans

BQ24261MRGER finds extensive application in various electronic devices that utilize lithium-ion batteries. Some notable application fields include: - Smartphones and tablets - Portable media players - Wearable devices - Bluetooth headsets - Digital cameras - Handheld gaming consoles

Detailed and Complete Alternative Models

1. BQ24260MRGER: Similar to BQ24261MRGER with slightly different specifications.
2. BQ24263MRGER: Enhanced version with additional features such as USB OTG support.
3. BQ24262MRGER: Variant with higher charging current capability.

These alternative models offer similar functionality and can be considered based on specific requirements and system constraints.

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