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ISL88739BHRZ
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ISL88739BHRZ

Product Overview

Category

ISL88739BHRZ belongs to the category of integrated circuits (ICs).

Use

It is primarily used as a battery charger controller.

Characteristics

  • High efficiency
  • Wide input voltage range
  • Accurate voltage regulation
  • Fast charging capability
  • Overvoltage and overcurrent protection

Package

ISL88739BHRZ comes in a small outline package (SOP) with a heat sink slug.

Essence

The essence of ISL88739BHRZ lies in its ability to efficiently control the charging process of batteries, ensuring optimal performance and safety.

Packaging/Quantity

This product is typically packaged in reels and the quantity per reel varies depending on the manufacturer's specifications.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Charging Voltage Range: 3.6V to 24V
  • Charging Current Range: 10mA to 2A
  • Operating Temperature Range: -40°C to +85°C
  • Control Interface: I2C

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. SDA: Serial data input/output for I2C communication
  4. SCL: Serial clock input for I2C communication
  5. BAT: Battery connection terminal
  6. TS: Thermistor input for temperature monitoring
  7. STAT: Status output pin
  8. PROG: Programming pin for setting charging parameters

Functional Features

  • Constant current and constant voltage charging modes
  • Thermal regulation for temperature-controlled charging
  • Charge termination based on voltage and current thresholds
  • Fault detection and reporting
  • Programmable charging parameters

Advantages

  • High charging efficiency leads to reduced charging time
  • Wide input voltage range allows compatibility with various power sources
  • Accurate voltage regulation ensures safe charging of batteries
  • Fast charging capability meets the demands of modern devices
  • Overvoltage and overcurrent protection safeguards the battery and connected devices

Disadvantages

  • Requires additional external components for complete battery charging circuit implementation
  • Limited programmability compared to more advanced battery charger controllers

Working Principles

ISL88739BHRZ operates by monitoring the battery voltage and current during the charging process. It adjusts the charging parameters accordingly to maintain a constant current until a predefined voltage threshold is reached. At that point, it switches to constant voltage mode to prevent overcharging. The controller continuously monitors the battery temperature and adjusts the charging rate to prevent overheating.

Detailed Application Field Plans

ISL88739BHRZ finds applications in various portable electronic devices such as smartphones, tablets, laptops, and digital cameras. It is also used in power banks, battery-powered medical devices, and other portable equipment requiring efficient and reliable battery charging.

Detailed and Complete Alternative Models

  1. ISL9216: Battery charger controller with higher programmability options.
  2. LTC4000: High-performance battery charger controller with advanced safety features.
  3. MAX8903A: Integrated battery charger IC with built-in USB interface.

These alternative models offer different features and capabilities, allowing users to choose the most suitable option based on their specific requirements.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von ISL88739BHRZ in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of ISL88739BHRZ in technical solutions:

  1. Q: What is ISL88739BHRZ? A: ISL88739BHRZ is a highly integrated battery charger controller IC designed for single-cell Li-ion or Li-polymer batteries.

  2. Q: What is the input voltage range supported by ISL88739BHRZ? A: The input voltage range supported by ISL88739BHRZ is typically between 4.5V and 28V.

  3. Q: Can ISL88739BHRZ charge multiple batteries simultaneously? A: No, ISL88739BHRZ is designed to charge a single-cell battery at a time.

  4. Q: What charging current can ISL88739BHRZ provide? A: ISL88739BHRZ can provide a charging current up to 4A, depending on the external components used.

  5. Q: Does ISL88739BHRZ support fast charging? A: Yes, ISL88739BHRZ supports various charging profiles, including fast charging, based on the configuration and external components used.

  6. Q: Can ISL88739BHRZ be used in portable devices? A: Yes, ISL88739BHRZ is commonly used in portable devices such as smartphones, tablets, and wearable devices.

  7. Q: Does ISL88739BHRZ have built-in safety features? A: Yes, ISL88739BHRZ incorporates several safety features like overvoltage protection, overcurrent protection, and thermal shutdown.

  8. Q: What is the operating temperature range of ISL88739BHRZ? A: The operating temperature range of ISL88739BHRZ is typically between -40°C and +85°C.

  9. Q: Can ISL88739BHRZ be used in automotive applications? A: Yes, ISL88739BHRZ can be used in automotive applications that require single-cell battery charging.

  10. Q: Are there any evaluation boards or reference designs available for ISL88739BHRZ? A: Yes, Intersil (now Renesas Electronics) provides evaluation boards and reference designs to help with the implementation of ISL88739BHRZ in various applications.

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