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BQ24751ARHDT
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BQ24751ARHDT

Product Overview

Category

BQ24751ARHDT belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is primarily used for battery charging and system power management in portable electronic devices such as laptops, tablets, and smartphones.

Characteristics

  • Efficient battery charging and power management
  • High integration with multiple functions
  • Compact package size
  • Wide input voltage range
  • Advanced safety features

Package

BQ24751ARHDT is available in a small outline package (SOP) with 20 pins.

Essence

The essence of BQ24751ARHDT lies in its ability to efficiently manage battery charging and power delivery in portable electronic devices, ensuring optimal performance and safety.

Packaging/Quantity

This PMIC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V to 24V
  • Output Voltage Range: 2.5V to 25.2V
  • Charging Current Range: Up to 8A
  • Operating Temperature Range: -40°C to 85°C
  • Efficiency: Up to 95%
  • Protection Features: Overvoltage protection, overcurrent protection, thermal shutdown, short-circuit protection

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. VBST: Boost converter output voltage pin
  4. ACSET: Input current limit setting pin
  5. ISET: Charge current setting pin
  6. TS: Thermistor input pin
  7. SDA: I2C data pin
  8. SCL: I2C clock pin
  9. INT: Interrupt output pin
  10. BAT: Battery voltage sense pin
  11. SRN: System reset output pin
  12. ACOK: AC adapter present indication pin
  13. PG: Power good output pin
  14. TS1: Thermistor input pin
  15. TS2: Thermistor input pin
  16. TS3: Thermistor input pin
  17. TS4: Thermistor input pin
  18. TS5: Thermistor input pin
  19. TS6: Thermistor input pin
  20. VDD: Supply voltage pin

Functional Features

  • Battery charging control and management
  • Input current limit regulation
  • Charge current regulation
  • Voltage and temperature monitoring
  • System reset control
  • Interrupt generation for fault conditions
  • I2C communication interface for configuration and status monitoring

Advantages and Disadvantages

Advantages

  • Efficient battery charging and power management
  • Wide input voltage range allows compatibility with various power sources
  • Advanced safety features protect the device and battery from damage
  • Compact package size enables integration in space-constrained designs

Disadvantages

  • Limited charging current compared to some high-power devices
  • Requires external thermistors for accurate temperature monitoring

Working Principles

BQ24751ARHDT operates by regulating the charging current, input current limit, and system reset based on the input voltage, battery voltage, and temperature measurements. It communicates with the host system through the I2C interface, allowing configuration and monitoring of various parameters.

Detailed Application Field Plans

BQ24751ARHDT finds applications in a wide range of portable electronic devices, including but not limited to: - Laptops - Tablets - Smartphones - Portable gaming consoles - Portable medical devices - Portable audio/video players

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to BQ24751ARHDT are: - BQ24753ARHDT - BQ24757ARHDT - BQ24758ARHDT - BQ24759ARHDT

These models have slightly different specifications and pin configurations, but they serve the same purpose of battery charging and power management in portable electronic devices.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av BQ24751ARHDT i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of BQ24751ARHDT in technical solutions:

  1. Question: What is the BQ24751ARHDT?
    Answer: The BQ24751ARHDT is a battery charger IC designed for use in portable devices, such as laptops, tablets, and smartphones.

  2. Question: What is the input voltage range supported by the BQ24751ARHDT?
    Answer: The BQ24751ARHDT supports an input voltage range of 4.5V to 24V.

  3. Question: Can the BQ24751ARHDT charge multiple battery chemistries?
    Answer: Yes, the BQ24751ARHDT is capable of charging various battery chemistries, including lithium-ion (Li-ion), lithium-polymer (Li-Po), and nickel-cadmium (Ni-Cd).

  4. Question: Does the BQ24751ARHDT support fast charging?
    Answer: Yes, the BQ24751ARHDT supports fast charging protocols, such as Qualcomm Quick Charge and USB Power Delivery.

  5. Question: What is the maximum charging current supported by the BQ24751ARHDT?
    Answer: The BQ24751ARHDT can support a maximum charging current of up to 8A.

  6. Question: Can the BQ24751ARHDT be used in parallel to increase charging capacity?
    Answer: Yes, multiple BQ24751ARHDT ICs can be used in parallel to increase the overall charging capacity.

  7. Question: Does the BQ24751ARHDT have built-in protection features?
    Answer: Yes, the BQ24751ARHDT includes various protection features, such as overvoltage protection, overcurrent protection, and thermal shutdown.

  8. Question: Can the BQ24751ARHDT be controlled and monitored through a microcontroller?
    Answer: Yes, the BQ24751ARHDT can be controlled and monitored through an I2C interface, allowing for advanced system integration and monitoring capabilities.

  9. Question: What is the efficiency of the BQ24751ARHDT?
    Answer: The BQ24751ARHDT has high charging efficiency, typically above 90%, which helps optimize power consumption.

  10. Question: Is the BQ24751ARHDT suitable for automotive applications?
    Answer: Yes, the BQ24751ARHDT is designed to meet automotive-grade requirements and can be used in various automotive applications.

Please note that these answers are general and may vary depending on specific implementation and application requirements.