BQ24022DRCRG4 - English Editing Encyclopedia Entry

Product Overview

Category

BQ24022DRCRG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging single-cell lithium-ion or lithium-polymer batteries in portable electronic devices such as smartphones, tablets, and wearable devices.

Characteristics

• Input voltage range: 4.35V to 6.45V
• Output voltage range: 3.5V to 4.44V
• Charging current: Up to 1.5A
• Programmable charge termination current
• Thermal regulation and protection
• Integrated power FET

Package

BQ24022DRCRG4 is available in a small outline package (SON) with dimensions of 3mm x 3mm.

Essence

The essence of BQ24022DRCRG4 lies in its ability to efficiently and safely charge lithium-ion or lithium-polymer batteries, ensuring optimal performance and longevity.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing 3000 units.

Specifications

• Input Voltage Range: 4.35V to 6.45V
• Output Voltage Range: 3.5V to 4.44V
• Charging Current: Up to 1.5A
• Charge Termination Current: Programmable
• Operating Temperature Range: -40°C to +85°C
• Package Type: SON-10

Detailed Pin Configuration

1. VBUS: Input voltage from USB port
2. PG: Power good indicator output
3. STAT: Charging status indicator output
4. TS: Thermistor input for thermal regulation
5. EN: Enable pin to control charging
6. ISET: Current setting pin
7. GND: Ground reference
8. BAT: Battery connection
9. SYS: System output voltage
10. VREG: Internal voltage regulator output

Functional Features

• Integrated power FET for efficient charging
• Programmable charge termination current for different battery types
• Thermal regulation and protection to prevent overheating
• Power good and charging status indicators for monitoring
• Enable pin for easy control of charging process
• Small form factor for space-constrained applications

Advantages and Disadvantages

Advantages

• High charging efficiency
• Wide input and output voltage range
• Programmable charge termination current for flexibility
• Thermal regulation and protection for safety
• Compact package size for space-saving designs

Disadvantages

• Limited to single-cell lithium-ion or lithium-polymer batteries
• Not suitable for multi-cell battery charging applications

Working Principles

BQ24022DRCRG4 operates by regulating the charging current and voltage to ensure safe and efficient charging of lithium-ion or lithium-polymer batteries. It incorporates an integrated power FET that controls the charging process, while thermal regulation prevents overheating. The charge termination current can be programmed to suit different battery types, ensuring optimal charging performance.

Detailed Application Field Plans

BQ24022DRCRG4 finds extensive application in various portable electronic devices, including: 1. Smartphones 2. Tablets 3. Wearable devices (smartwatches, fitness trackers) 4. Portable gaming consoles 5. Bluetooth headphones

Detailed and Complete Alternative Models

1. BQ24025DRCR: Similar to BQ24022DRCRG4 with additional overvoltage protection feature.
2. BQ24030RHLR: Supports multi-cell battery charging with a higher charging current capability.
3. BQ24040DSQR: Provides USB On-The-Go (OTG) functionality in addition to battery charging.

These alternative models offer similar functionalities and can be considered based on specific application requirements.

In conclusion, BQ24022DRCRG4 is a highly efficient and versatile integrated circuit designed for charging single-cell lithium-ion or lithium-polymer batteries. With its compact size, programmable features, and thermal protection, it is well-suited for a wide range of portable electronic devices.