Texas Instruments
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BQ24120RHLTG4
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BQ24120RHLTG4

Product Overview

Category

BQ24120RHLTG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is commonly used in various portable electronic devices, such as smartphones, tablets, and wearable devices, to efficiently charge their batteries.

Characteristics

  • High charging efficiency
  • Compact size
  • Low power consumption
  • Wide input voltage range
  • Multiple charging modes
  • Overvoltage and overcurrent protection

Package

BQ24120RHLTG4 is available in a small outline package (SOP) with a thermal pad for enhanced heat dissipation.

Essence

The essence of BQ24120RHLTG4 lies in its ability to provide a reliable and efficient charging solution for portable electronic devices, ensuring optimal battery performance and longevity.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specified quantity of ICs per package. The exact quantity may vary depending on the supplier's specifications.

Specifications

  • Input Voltage Range: 4.35V to 6.45V
  • Charging Current Range: Up to 2A
  • Programmable Charge Voltage: 3.5V to 4.44V
  • Battery Regulation Voltage Accuracy: ±0.5%
  • Operating Temperature Range: -40°C to +85°C
  • Integrated Safety Features: Thermal regulation, overvoltage protection, overcurrent protection, short-circuit protection

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
  5. ISET: Charging current setting pin
  6. PG: Power good output pin
  7. VBAT: Battery voltage sense pin
  8. VSS: Negative terminal of the battery
  9. VCC: Positive terminal of the battery
  10. TS/NTC: Thermistor input for temperature monitoring

Functional Features

  • Constant current and constant voltage charging modes
  • Automatic power path management
  • Battery temperature monitoring
  • Charge termination based on battery voltage and temperature
  • Dynamic power management for efficient charging
  • Fault detection and protection mechanisms

Advantages and Disadvantages

Advantages

  • High charging efficiency leads to faster charging times
  • Compact size allows for integration into small form factor devices
  • Low power consumption minimizes energy waste
  • Wide input voltage range enables compatibility with various power sources
  • Multiple charging modes cater to different battery chemistries and capacities
  • Comprehensive safety features protect the battery and device from potential damage

Disadvantages

  • Limited charging current may not be suitable for high-capacity batteries or fast-charging requirements
  • Lack of advanced communication protocols, such as USB Power Delivery, restricts compatibility with certain devices

Working Principles

BQ24120RHLTG4 operates by regulating the charging current and voltage supplied to the battery. It employs a combination of constant current and constant voltage charging modes to ensure optimal charging efficiency and battery health. The integrated power path management feature allows simultaneous charging and discharging, enabling the device to operate even when the battery is being charged.

Detailed Application Field Plans

BQ24120RHLTG4 finds extensive application in the following fields:

  1. Mobile devices: Smartphones, tablets, smartwatches
  2. Portable audio/video devices: Bluetooth speakers, portable media players
  3. Wearable devices: Fitness trackers, smart glasses
  4. IoT devices: Wireless sensors, smart home devices
  5. Medical devices: Portable medical equipment, wearable health monitors

Detailed and Complete Alternative Models

  1. BQ24121RHLTG4
  2. BQ24122RHLTG4
  3. BQ24123RHLTG4
  4. BQ24124RHLTG4
  5. BQ24125RHLTG4

These alternative models offer similar functionality and characteristics, providing flexibility in choosing the most suitable IC for specific charging requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de BQ24120RHLTG4 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of BQ24120RHLTG4 in technical solutions:

  1. Q: What is the BQ24120RHLTG4? A: The BQ24120RHLTG4 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 supported by the BQ24120RHLTG4? A: The BQ24120RHLTG4 supports an input voltage range of 4.35V to 6.45V.

  4. Q: What is the maximum charging current supported by the BQ24120RHLTG4? A: The BQ24120RHLTG4 supports a maximum charging current of 1.5A.

  5. Q: Can the BQ24120RHLTG4 charge other types of batteries apart from Li-Ion? A: No, the BQ24120RHLTG4 is specifically designed for single-cell Li-Ion batteries.

  6. Q: Does the BQ24120RHLTG4 have overvoltage protection? A: Yes, the BQ24120RHLTG4 has built-in overvoltage protection to prevent damage to the battery.

  7. Q: Is the BQ24120RHLTG4 compatible with USB Type-C? A: No, the BQ24120RHLTG4 does not support USB Type-C. It is designed for standard USB ports.

  8. Q: Can the BQ24120RHLTG4 be used in portable devices like smartphones or tablets? A: Yes, the BQ24120RHLTG4 is commonly used in portable devices that require single-cell Li-Ion battery charging.

  9. Q: Does the BQ24120RHLTG4 have thermal regulation? A: Yes, the BQ24120RHLTG4 has built-in thermal regulation to prevent overheating during charging.

  10. Q: What is the package type of the BQ24120RHLTG4? A: The BQ24120RHLTG4 comes in a small 20-pin VQFN package for easy integration into compact designs.

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