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BQ24747RHDR
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BQ24747RHDR

Introduction

The BQ24747RHDR is a versatile battery charger integrated circuit designed for use in various electronic devices. This entry provides an overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Battery Charger IC
  • Use: Charging lithium-ion and lithium-polymer batteries in portable electronic devices
  • Characteristics: High efficiency, programmable charge current, input current and voltage regulation, thermal regulation, and charge status indication
  • Package: 32-pin VQFN package
  • Essence: Efficient and flexible battery charging solution
  • Packaging/Quantity: Tape and reel packaging, quantity varies based on supplier

Specifications

  • Input Voltage Range: 4.5V to 24V
  • Charge Voltage Range: 3.5V to 24V
  • Charge Current: Programmable up to 8A
  • Regulation Accuracy: ±0.5%
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

  1. VIN: Input supply voltage
  2. TS: Thermistor input for temperature monitoring
  3. BAT: Battery connection point
  4. SYS: System output voltage
  5. PROG: Charge current programming pin
  6. SDA/SCL: I2C communication pins
  7. INT: Interrupt output
  8. GND: Ground

(Additional pins are present in the 32-pin VQFN package)

Functional Features

  • Programmable charge current and voltage
  • Dynamic power management
  • Thermal regulation and protection
  • I2C communication for system monitoring and control
  • Charge status indication

Advantages and Disadvantages

Advantages

  • High efficiency charging
  • Flexible programmability
  • Comprehensive protection features
  • I2C interface for system integration

Disadvantages

  • Complex setup for some applications
  • Higher cost compared to basic charger ICs

Working Principles

The BQ24747RHDR operates by regulating the input current and voltage to efficiently charge lithium-ion and lithium-polymer batteries. It utilizes a combination of voltage and current regulation techniques along with thermal management to ensure safe and efficient charging.

Detailed Application Field Plans

The BQ24747RHDR is suitable for a wide range of portable electronic devices, including laptops, tablets, power banks, and handheld instruments. Its flexibility and programmability make it ideal for applications requiring customized charging profiles and advanced battery management.

Detailed and Complete Alternative Models

  • BQ24725RGER
  • BQ24780S
  • BQ25601DRCR
  • LTC4000EGN
  • MAX8903AETI+

In conclusion, the BQ24747RHDR is a highly capable battery charger IC offering advanced features and flexibility for charging lithium-ion and lithium-polymer batteries in various portable electronic devices.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi BQ24747RHDR dalam penyelesaian teknikal

  1. What is the BQ24747RHDR?

    • The BQ24747RHDR is a highly integrated battery charge controller and system power selector for single-cell Li-ion or Li-polymer batteries.

  2. What is the input voltage range of the BQ24747RHDR?

    • The input voltage range of the BQ24747RHDR is 4.5V to 24V.

  3. What is the maximum charge current supported by the BQ24747RHDR?

    • The BQ24747RHDR supports a maximum charge current of 8A.

  4. Can the BQ24747RHDR be used in fast-charging applications?

    • Yes, the BQ24747RHDR can be used in fast-charging applications, supporting various charging protocols.

  5. What are the key features of the BQ24747RHDR?

    • The key features of the BQ24747RHDR include dynamic power management, input current limit, thermal regulation, and battery temperature monitoring.

  6. How does the BQ24747RHDR handle battery safety?

    • The BQ24747RHDR includes built-in battery protection features such as overvoltage protection, overcurrent protection, and over-temperature protection.

  7. Is the BQ24747RHDR suitable for portable electronic devices?

    • Yes, the BQ24747RHDR is suitable for a wide range of portable electronic devices, including laptops, tablets, and handheld instruments.

  8. What is the typical application circuit for the BQ24747RHDR?

    • The typical application circuit includes the connection of the battery, input power source, and the load, along with necessary passive components.

  9. Does the BQ24747RHDR support USB Power Delivery (PD) standards?

    • Yes, the BQ24747RHDR supports USB PD standards, making it suitable for USB Type-C charging solutions.

  10. Are there any design considerations when using the BQ24747RHDR in a technical solution?

    • Design considerations include layout optimization, thermal management, and proper component selection to ensure reliable and efficient operation.