BQ24103ARHLRG4

Product Overview

Category

BQ24103ARHLRG4 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 designed for battery charging applications
• Supports charging of single-cell lithium-ion batteries
• Provides a comprehensive set of protection features
• Offers high efficiency charging with minimal power dissipation
• Compact package for space-constrained designs

Package and Quantity

The BQ24103ARHLRG4 is available in a small outline package (RHL) with a thermal pad. It is supplied in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 4.35V to 6.45V
• Charging Voltage Range: 3.5V to 4.44V
• Maximum Charging Current: 1.5A
• Pre-charge Current: 100mA
• Battery Regulation Voltage Accuracy: ±0.5%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The BQ24103ARHLRG4 has a total of 20 pins. The pin configuration is as follows:

1. EN (Enable)
2. STAT (Status)
3. PG (Power Good)
4. TS (Thermal Sense)
5. VBUS (USB Input Supply)
6. AC/DP (Adapter Detection)
7. AC/DM (Adapter Detection)
8. ISET (Charge Current Setting)
9. BAT (Battery Connection)
10. SRN (System Reset)
11. SRP (System Reset)
12. SRM (System Reset)
13. SRP (System Reset)
14. SRM (System Reset)
15. SRP (System Reset)
16. SRM (System Reset)
17. SRP (System Reset)
18. SRM (System Reset)
19. GND (Ground)
20. VDD (Power Supply)

Functional Features

• Integrated power FETs for charging control
• Automatic detection of USB input supply or adapter connection
• Programmable charge current and termination current
• Thermal regulation and protection
• Battery temperature monitoring
• Charge status indication through status pins

Advantages and Disadvantages

Advantages

• High efficiency charging minimizes power dissipation
• Comprehensive protection features ensure safe charging
• Compact package suitable for space-constrained designs
• Wide operating temperature range allows for versatile applications

Disadvantages

• Limited to single-cell lithium-ion battery charging
• Maximum charging current may not be sufficient for high-capacity batteries

Working Principles

The BQ24103ARHLRG4 operates by regulating the charging voltage and current supplied to a single-cell lithium-ion battery. It automatically detects the input source, whether it is a USB supply or an adapter, and adjusts the charging parameters accordingly. The integrated power FETs control the charging process, while the thermal regulation and protection features prevent overheating and ensure safe operation.

Detailed Application Field Plans

The BQ24103ARHLRG4 is widely used in various portable electronic devices that require efficient and reliable battery charging. Some common application fields include:

1. Smartphones
2. Tablets
3. Portable media players
4. Wearable devices
5. Bluetooth headsets
6. Handheld gaming consoles

Detailed Alternative Models

For those seeking alternative models with similar functionality, the following options are available:

1. BQ24075RGTR - Single-cell Li-Ion charger with lower charging current capability.
2. BQ24080DRCT - Single-cell Li-Ion charger with higher charging current capability.
3. BQ24090DGQR - Single-cell Li-Ion charger with additional USB OTG support.

These alternative models offer different charging current capabilities and additional features to suit specific application requirements.

Word count: 536 words