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BQ24103RHLRG4
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BQ24103RHLRG4

Product Overview

Category

BQ24103RHLRG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This IC is commonly used in portable electronic devices such as smartphones, tablets, and wearable devices to efficiently charge lithium-ion batteries.

Characteristics

  • High charging efficiency
  • Compact package size
  • Wide input voltage range
  • Fast charging capability
  • Overvoltage and overcurrent protection
  • Thermal regulation

Package

BQ24103RHLRG4 is available in a small outline package (SOP) with a thermal pad for enhanced heat dissipation.

Essence

The essence of BQ24103RHLRG4 lies in its ability to provide a reliable and efficient charging solution for lithium-ion batteries, ensuring optimal performance and safety.

Packaging/Quantity

This IC is typically supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 4.35V to 6.45V
  • Charging Voltage Range: 3.5V to 4.44V
  • Charging Current Range: 500mA to 2A
  • Operating Temperature Range: -40°C to +85°C
  • Standby Current: < 100µA
  • Battery Regulation Accuracy: ±1%
  • Charge Termination Accuracy: ±5%

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground reference pin
  3. TS: Thermistor input for temperature monitoring
  4. STAT: Status output pin indicating charging status
  5. PG: Power good output pin
  6. CE: Charge enable input pin
  7. ISET: Charging current setting pin
  8. VBAT: Battery voltage sense pin
  9. PROG: Programming pin for various charging profiles
  10. VREF: Reference voltage output pin

Functional Features

  • Constant current/constant voltage (CC/CV) charging algorithm
  • Thermal regulation to prevent overheating
  • Charge termination based on battery voltage and current thresholds
  • Automatic recharge feature after battery discharge
  • Reverse boost mode for USB On-The-Go (OTG) applications
  • Programmable charge current limit
  • Battery temperature monitoring and protection

Advantages and Disadvantages

Advantages

  • High charging efficiency leads to faster charging times
  • Wide input voltage range allows compatibility with various power sources
  • Comprehensive protection features ensure safe charging
  • Compact package size enables space-saving designs
  • Programmable charge current limit offers flexibility in different applications

Disadvantages

  • Limited availability of alternative models from other manufacturers
  • Relatively higher cost compared to some competing ICs

Working Principles

BQ24103RHLRG4 operates based on the CC/CV charging algorithm. Initially, it provides a constant current to the battery until a predefined voltage threshold is reached. Then, it switches to a constant voltage mode, maintaining the battery voltage at the desired level while reducing the charging current. The IC continuously monitors the battery voltage, current, and temperature to ensure safe and efficient charging.

Detailed Application Field Plans

BQ24103RHLRG4 finds extensive application in various portable electronic devices, including: - Smartphones - Tablets - Wearable devices - Portable gaming consoles - Bluetooth headphones - Power banks

Detailed and Complete Alternative Models

While BQ24103RHLRG4 is a highly capable IC, there are alternative models available from other manufacturers that offer similar functionality. Some notable alternatives include: - MCP73831 by Microchip Technology - MAX1555 by Maxim Integrated - LTC4054 by Linear Technology - TPS2513 by Texas Instruments

These alternative models can be considered based on specific design requirements and availability.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de BQ24103RHLRG4 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of BQ24103RHLRG4 in technical solutions:

  1. Q: What is the BQ24103RHLRG4? A: The BQ24103RHLRG4 is a highly integrated single-cell Li-Ion battery charger IC with power path management.

  2. Q: What is power path management? A: Power path management allows simultaneous charging of the battery and powering the system from a USB port or an adapter.

  3. Q: What is the input voltage range for the BQ24103RHLRG4? A: The input voltage range is typically between 4.35V and 6.45V, making it suitable for various power sources.

  4. Q: Can the BQ24103RHLRG4 charge multiple types of batteries? A: No, it is designed specifically for single-cell Li-Ion batteries.

  5. Q: What is the maximum charging current supported by the BQ24103RHLRG4? A: The maximum charging current is programmable up to 2A, allowing for fast charging capabilities.

  6. Q: Does the BQ24103RHLRG4 have overvoltage protection? A: Yes, it has built-in overvoltage protection to prevent damage to the battery during charging.

  7. Q: Is there any thermal regulation in the BQ24103RHLRG4? A: Yes, it includes thermal regulation to prevent overheating and ensure safe operation.

  8. Q: Can the BQ24103RHLRG4 be used in portable devices? A: Yes, it is commonly used in portable devices such as smartphones, tablets, and wearable devices.

  9. Q: Does the BQ24103RHLRG4 support USB On-The-Go (OTG) functionality? A: Yes, it supports USB OTG functionality, allowing the device to act as a host or peripheral.

  10. Q: Are there any evaluation modules available for the BQ24103RHLRG4? A: Yes, Texas Instruments provides evaluation modules that can help in testing and prototyping with the BQ24103RHLRG4.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.