BQ25882YFFR - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Charger

Characteristics: - High Efficiency - Fast Charging - Compact Size - Advanced Safety Features

Package: 20-pin VQFN package

Essence: The BQ25882YFFR is a highly efficient battery charger IC designed for fast charging applications.

Packaging/Quantity: Available in reels of 2500 units

Specifications

• Input Voltage Range: 3.9V to 14V
• Output Voltage Range: 3.9V to 14V
• Charging Current Range: Up to 8A
• Operating Temperature Range: -40°C to +85°C
• Battery Chemistry Support: Li-Ion, Li-Polymer, and LiFePO4

Detailed Pin Configuration

The BQ25882YFFR features a 20-pin VQFN package with the following pin configuration:

1. VIN: Input voltage pin
2. ISET: Charging current setting pin
3. TS: Thermistor input pin
4. STAT: Status output pin
5. PG: Power good output pin
6. CE: Charge enable input pin
7. SDA: I2C data input/output pin
8. SCL: I2C clock input pin
9. TS/DPDM: Thermistor input / USB D+/D- detection pin
10. SRN/SRP: System reset input / system power input pin
11. BAT: Battery voltage sense pin
12. TS/DPDM: Thermistor input / USB D+/D- detection pin
13. TS/DPDM: Thermistor input / USB D+/D- detection pin
14. TS/DPDM: Thermistor input / USB D+/D- detection pin
15. TS/DPDM: Thermistor input / USB D+/D- detection pin
16. GND: Ground pin
17. VBUS: USB input voltage sense pin
18. VOUT: Output voltage pin
19. ILIM: Input current limit setting pin
20. TS/DPDM: Thermistor input / USB D+/D- detection pin

Functional Features

1. High Efficiency: The BQ25882YFFR incorporates advanced charging algorithms and power management techniques to ensure high charging efficiency.
2. Fast Charging: With a charging current range of up to 8A, the IC enables rapid charging of batteries.
3. Compact Size: The small form factor and integration of various functions make it suitable for space-constrained applications.
4. Advanced Safety Features: The IC includes built-in protection mechanisms such as overvoltage protection, overcurrent protection, and thermal regulation to ensure safe charging.

Advantages and Disadvantages

Advantages: - High charging efficiency - Fast charging capability - Compact size - Advanced safety features

Disadvantages: - Limited compatibility with specific battery chemistries - Requires external components for complete charging system implementation

Working Principles

The BQ25882YFFR operates by regulating the charging current and voltage based on the battery's requirements. It utilizes a combination of pulse width modulation (PWM) and voltage regulation techniques to achieve efficient and fast charging. The IC continuously monitors the battery's voltage and adjusts the charging parameters accordingly to optimize the charging process.

Detailed Application Field Plans

The BQ25882YFFR is widely used in various portable electronic devices, including smartphones, tablets, and wearable devices. Its fast charging capability and compact size make it ideal for applications where quick and efficient charging is essential.

Detailed and Complete Alternative Models

1. BQ25880YFFR: Similar to BQ25882YFFR, but with a lower charging current range of up to 4A.
2. BQ25883YFFR: Similar to BQ25882YFFR, but with additional support for USB On-The-Go (OTG) functionality.

These alternative models offer similar features and characteristics, providing flexibility in choosing the most suitable battery charger IC for specific applications.

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