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BQ24103ARHLTG4
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BQ24103ARHLTG4

Product Overview

Category

BQ24103ARHLTG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging lithium-ion batteries in various electronic devices such as smartphones, tablets, and portable electronics.

Characteristics

  • Integrated circuit for battery charging
  • Supports lithium-ion battery chemistry
  • High charging efficiency
  • Compact package size
  • Low power consumption
  • Overvoltage and overcurrent protection
  • Thermal regulation for safe charging

Package

BQ24103ARHLTG4 is available in a small outline package (SOP) with a thermal pad for efficient heat dissipation. The package type is SOP-20.

Essence

The essence of BQ24103ARHLTG4 lies in its ability to provide a reliable and efficient charging solution for lithium-ion batteries, ensuring optimal performance and safety.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with 2500 units per reel.

Specifications

  • Input voltage range: 4.35V to 6.45V
  • Charging current: Up to 2A
  • Programmable charge termination current
  • Battery voltage regulation accuracy: ±1%
  • Operating temperature range: -40°C to +85°C
  • Standby current: <100µA

Detailed Pin Configuration

  1. VBUS: Input voltage from the power source
  2. GND: Ground reference
  3. TS: Thermistor input for temperature monitoring
  4. STAT: Status output pin
  5. CE: Charge enable control input
  6. ISET: Current limit programming pin
  7. BAT: Battery voltage sense input
  8. PG: Power good indicator output
  9. PROG: Programming pin for setting charge parameters
  10. INT: Interrupt output pin
  11. TS/NTC: Thermistor input or NTC thermistor bias
  12. VREF: Reference voltage output
  13. SDA: I2C data line
  14. SCL: I2C clock line
  15. SRN: Serial resistor network for I2C address selection
  16. NC: No connection
  17. NC: No connection
  18. VDD: Power supply input
  19. VSS: Ground reference
  20. VBAT: Battery voltage input

Functional Features

  • Constant current and constant voltage charging modes
  • Programmable charge termination current
  • Thermal regulation to prevent overheating
  • Automatic recharge feature
  • Charge status indication through the STAT pin
  • I2C interface for advanced control and monitoring

Advantages and Disadvantages

Advantages

  • High charging efficiency leads to faster charging times
  • Comprehensive protection features ensure safe charging
  • Compact package size allows for space-saving designs
  • Wide operating temperature range enables usage in various environments
  • I2C interface provides flexibility and customization options

Disadvantages

  • Requires additional external components for complete charging circuitry
  • Limited to lithium-ion battery chemistry

Working Principles

BQ24103ARHLTG4 operates based on a two-stage charging algorithm. In the first stage, it delivers a constant current to the battery until a predefined voltage threshold is reached. Then, it switches to the second stage, where it maintains a constant voltage while gradually reducing the charging current. This ensures efficient and controlled charging of the battery.

The IC continuously monitors the battery temperature and adjusts the charging parameters accordingly to prevent overheating. It also incorporates various protection mechanisms such as overvoltage and overcurrent protection to safeguard the battery and the charging circuitry.

Detailed Application Field Plans

BQ24103ARHLTG4 finds applications in a wide range of portable electronic devices, including: - Smartphones - Tablets - Portable media players - Wearable devices - Bluetooth headsets - Digital cameras

Its compact size, high efficiency, and comprehensive protection features make it suitable for various battery-powered applications.

Detailed and Complete Alternative Models

  1. BQ24103ARHLR: Similar to BQ24103ARHLTG4 but without the thermal pad.
  2. BQ24103ARHLT: Same functionality as BQ24103ARHLTG4 but in a different package type (SOT-23).
  3. BQ24103ARHLEVM: Evaluation module for testing and prototyping purposes.

These alternative models offer similar charging capabilities and can be considered based on specific design requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av BQ24103ARHLTG4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of BQ24103ARHLTG4 in technical solutions:

  1. Q: What is the BQ24103ARHLTG4? A: The BQ24103ARHLTG4 is a highly integrated single-cell Li-Ion battery charger IC designed for portable applications.

  2. Q: What is the input voltage range supported by the BQ24103ARHLTG4? A: The BQ24103ARHLTG4 supports an input voltage range from 3.9V to 6.2V.

  3. Q: What is the maximum charging current provided by the BQ24103ARHLTG4? A: The BQ24103ARHLTG4 can provide a maximum charging current of up to 1.5A.

  4. Q: Can the BQ24103ARHLTG4 charge multiple battery chemistries? A: No, the BQ24103ARHLTG4 is specifically designed for single-cell Li-Ion battery charging and does not support other chemistries.

  5. Q: Does the BQ24103ARHLTG4 have built-in thermal regulation? A: Yes, the BQ24103ARHLTG4 has built-in thermal regulation to prevent overheating during charging.

  6. Q: Can the BQ24103ARHLTG4 operate in a trickle charge mode? A: Yes, the BQ24103ARHLTG4 supports a trickle charge mode for low-current charging when the battery voltage is below a certain threshold.

  7. Q: Does the BQ24103ARHLTG4 have overvoltage protection? A: Yes, the BQ24103ARHLTG4 has overvoltage protection to prevent damage to the battery during charging.

  8. Q: Can the BQ24103ARHLTG4 be used in fast charging applications? A: Yes, the BQ24103ARHLTG4 supports fast charging with programmable charge current and voltage settings.

  9. Q: Does the BQ24103ARHLTG4 have a power path management feature? A: Yes, the BQ24103ARHLTG4 has a power path management feature that allows simultaneous charging and system operation.

  10. Q: What is the package type of the BQ24103ARHLTG4? A: The BQ24103ARHLTG4 is available in a 20-pin VQFN package.

Please note that these answers are general and may vary depending on the specific implementation and configuration of the BQ24103ARHLTG4 in a given technical solution.