BQ24232RGTR - English Editing Encyclopedia Entry

Product Overview

Category

BQ24232RGTR belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging lithium-ion or lithium-polymer batteries in various electronic devices such as smartphones, tablets, portable media players, and other portable electronic devices.

Characteristics

• Input voltage range: 3.9V to 6.2V
• 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 FETs
• Small form factor package

Package and Quantity

The BQ24232RGTR is available in a small 20-pin QFN (Quad Flat No-leads) package. It is typically sold in reels containing a quantity of 2500 units per reel.

Specifications

• Input voltage range: 3.9V to 6.2V
• Output voltage range: 3.9V to 6.2V
• Charging current: Up to 2A
• Programmable charge current limit: 50mA to 2000mA
• Pre-charge current: 10% of programmed charge current
• Termination current: 5% of programmed charge current
• Battery regulation voltage accuracy: ±1%
• Operating temperature range: -40°C to +85°C

Pin Configuration

The BQ24232RGTR has a total of 20 pins. The pin configuration is as follows:

1. VBUS - Input voltage from USB port
2. AC/DC - Input voltage from AC adapter
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. EN/UVLO - Enable and undervoltage lockout control pin
8. CE - Charge enable input pin
9. SRN - System reset output pin
10. SDA - I2C data input/output pin
11. SCL - I2C clock input pin
12. BAT - Battery voltage sense input pin
13. TS1 - Thermistor input for battery temperature monitoring
14. TS2 - Thermistor input for battery temperature monitoring
15. GND - Ground pin
16. VREG - Regulated output voltage pin
17. VBUS_STAT - Input voltage status output pin
18. INT - Interrupt output pin
19. TS3 - Thermistor input for battery temperature monitoring
20. TS4 - Thermistor input for battery temperature monitoring

Functional Features

• Integrated power FETs for efficient charging
• Programmable charge current limit for flexibility
• Thermal regulation and protection to prevent overheating
• Overvoltage protection to safeguard the battery
• Battery temperature monitoring for safe charging
• Small form factor package for space-constrained designs

Advantages and Disadvantages

Advantages

• High charging efficiency
• Flexible charge current programming
• Comprehensive thermal and overvoltage protection
• Accurate battery voltage regulation
• Compact package size

Disadvantages

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

Working Principles

The BQ24232RGTR operates by regulating the charging current and voltage supplied to the connected lithium-ion or lithium-polymer battery. It utilizes integrated power FETs to efficiently transfer power from the input source (USB port or AC adapter) to the battery. The charge current and voltage can be programmed using the ISET pin, allowing flexibility in charging different battery capacities. The device also incorporates thermal regulation and protection mechanisms to prevent overheating during charging. Additionally, it monitors the battery temperature to ensure safe charging conditions.

Detailed Application Field Plans

The BQ24232RGTR is widely used in various portable electronic devices that require lithium-ion or lithium-polymer battery charging capabilities. Some specific application fields include:

1. Smartphones
2. Tablets
3. Portable media players
4. Wearable devices
5. Bluetooth headsets
6. Portable gaming consoles
7. Digital cameras
8. GPS navigation systems
9. Portable medical devices
10. Power banks

Detailed Alternative Models

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

1. BQ24230RGTR
2. BQ24231RGTR
3. BQ24233RGTR
4. BQ24234RGTR
5. BQ24235RGTR

These alternative models offer comparable features and specifications, providing suitable alternatives for various battery charging applications.

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