BQ24707ARGRR - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: Battery Charger IC

Characteristics: - High-efficiency synchronous switch-mode charger - Supports multiple battery chemistries - Programmable charge current and voltage - Integrated power FETs - Wide input voltage range - Advanced safety features

Package: VQFN-20

Essence: The BQ24707ARGRR is a highly efficient battery charger IC designed for various battery chemistries. It offers programmable charge current and voltage, integrated power FETs, and advanced safety features.

Packaging/Quantity: The BQ24707ARGRR is available in a VQFN-20 package. The quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 3.5V to 24V
• Charge Voltage Range: 2.4V to 25.2V
• Charge Current Range: Up to 8A
• Efficiency: Up to 98%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BQ24707ARGRR has the following pin configuration:

1. ACIN: Input voltage from AC adapter
2. ACOK: AC adapter present indicator
3. TS: Thermistor input for temperature monitoring
4. SRN: System reset output
5. SDA: I2C data line
6. SCL: I2C clock line
7. BAT: Battery voltage sense input
8. PROG: Programming pin for setting charge current
9. INT: Interrupt output
10. STAT: Status output
11. ILIM: Input current limit programming
12. VREF: Reference voltage output
13. REGN: Regulator output
14. REGP: Regulator input
15. TS2: Second thermistor input
16. SRP: System reset input
17. SDA2: Second I2C data line
18. SCL2: Second I2C clock line
19. VSS: Ground
20. VDD: Power supply voltage

Functional Features

• High-efficiency synchronous switch-mode charger
• Supports multiple battery chemistries (Li-Ion, Li-Polymer, NiMH, etc.)
• Programmable charge current and voltage for flexible charging profiles
• Integrated power FETs for reduced external components
• Wide input voltage range allows operation from various power sources
• Advanced safety features including overvoltage, overcurrent, and thermal protection

Advantages and Disadvantages

Advantages: - High efficiency results in faster charging times - Flexibility to charge different battery chemistries - Integrated power FETs reduce external component count - Wide input voltage range enables versatile usage - Advanced safety features protect the battery and system

Disadvantages: - Limited to a maximum charge current of 8A - Requires programming for specific charge current and voltage settings

Working Principles

The BQ24707ARGRR operates as a high-efficiency synchronous switch-mode charger. It regulates the charging process based on the programmed charge current and voltage. The integrated power FETs control the power flow to the battery, ensuring efficient charging. Advanced safety features monitor the charging process and protect against overvoltage, overcurrent, and thermal issues.

Detailed Application Field Plans

The BQ24707ARGRR is widely used in various applications that require battery charging capabilities. Some common application fields include: - Portable electronic devices - Medical devices - Industrial equipment - Automotive systems - Energy storage systems

Detailed and Complete Alternative Models

1. BQ24707RGRR
2. BQ24707YFPR
3. BQ24707YFFT
4. BQ24707YFFR

These alternative models offer similar functionality and can be considered as alternatives to the BQ24707ARGRR.

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