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ISL9221IRZ
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ISL9221IRZ

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Battery Charger
  • Characteristics: High Efficiency, Compact Size, Wide Input Voltage Range
  • Package: 28-Lead Thin Shrink Small Outline Package (TSSOP)
  • Essence: Power Management IC for Lithium-Ion Battery Charging
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

The ISL9221IRZ is a highly efficient battery charger IC designed for Lithium-Ion batteries. It operates with a wide input voltage range, making it suitable for various applications. The IC comes in a compact 28-Lead TSSOP package, ensuring space-saving integration into electronic devices.

Detailed Pin Configuration

The ISL9221IRZ features the following pin configuration:

  1. VBUS: Input voltage from USB or external power source
  2. GND: Ground reference
  3. TS: Thermistor input for temperature monitoring
  4. PROG: Programming pin for setting charge current
  5. STAT: Status output pin indicating charging status
  6. BAT: Battery connection pin
  7. REGN: Regulator output voltage
  8. CE: Charge enable control pin
  9. SDA: I2C data line
  10. SCL: I2C clock line
  11. INT: Interrupt output pin
  12. NC: No Connection
  13. NC: No Connection
  14. NC: No Connection
  15. NC: No Connection
  16. NC: No Connection
  17. NC: No Connection
  18. NC: No Connection
  19. NC: No Connection
  20. NC: No Connection
  21. NC: No Connection
  22. NC: No Connection
  23. NC: No Connection
  24. NC: No Connection
  25. NC: No Connection
  26. NC: No Connection
  27. NC: No Connection
  28. NC: No Connection

Functional Features

The ISL9221IRZ offers several functional features for efficient battery charging:

  • Wide input voltage range (4.5V to 28V) allows compatibility with various power sources.
  • Programmable charge current through the PROG pin enables flexibility in charging different battery capacities.
  • Integrated thermal regulation ensures safe charging by monitoring the temperature of the battery.
  • I2C interface (SDA and SCL pins) allows communication with a microcontroller for advanced control and monitoring capabilities.
  • Interrupt output pin (INT) provides a signal to the system when specific charging conditions are met.

Advantages and Disadvantages

Advantages: - High efficiency charging, minimizing energy loss - Compact size for space-constrained applications - Wide input voltage range for versatile use - Programmable charge current for flexibility - Integrated thermal regulation for safety

Disadvantages: - Limited pin configuration options for customization - Requires external microcontroller for advanced control and monitoring

Working Principles

The ISL9221IRZ operates based on a switching regulator topology to efficiently charge Lithium-Ion batteries. It utilizes a high-frequency pulse-width modulation (PWM) technique to regulate the charging current and voltage. The IC continuously monitors the battery temperature and adjusts the charging parameters accordingly to ensure safe and optimal charging.

Detailed Application Field Plans

The ISL9221IRZ is widely used in various portable electronic devices that require Lithium-Ion battery charging. Some common application fields include:

  1. Smartphones and Tablets: Enables fast and efficient charging of the device's battery.
  2. Portable Medical Devices: Provides reliable and safe charging for medical equipment.
  3. Wearable Devices: Supports the charging needs of smartwatches, fitness trackers, etc.
  4. Portable Gaming Consoles: Ensures uninterrupted gaming experience by charging the console's battery.
  5. Portable Power Banks: Facilitates quick and efficient charging of power bank batteries.

Detailed and Complete Alternative Models

  1. ISL9220IRZ: Similar to ISL9221IRZ but with a different pin configuration.
  2. ISL9230IRZ: Advanced version with additional features like USB On-The-Go (OTG) support.
  3. ISL9216IRZ: Lower-cost alternative with reduced functionality but suitable for basic charging applications.
  4. ISL9240IRZ: High-power variant capable of charging larger capacity batteries.

These alternative models offer similar functionality to the ISL9221IRZ but may have slight differences in specifications, pin configuration, or additional features.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät ISL9221IRZ :n soveltamiseen teknisissä ratkaisuissa

  1. What is the input voltage range of ISL9221IRZ?
    - The input voltage range of ISL9221IRZ is 2.5V to 4.7V.

  2. What is the maximum charge current supported by ISL9221IRZ?
    - ISL9221IRZ supports a maximum charge current of 2A.

  3. Can ISL9221IRZ be used for single-cell or multi-cell battery charging?
    - ISL9221IRZ is designed for single-cell Li-ion or Li-polymer battery charging.

  4. What is the typical standby current consumption of ISL9221IRZ?
    - The typical standby current consumption of ISL9221IRZ is 15µA.

  5. Does ISL9221IRZ have built-in thermal regulation?
    - Yes, ISL9221IRZ features built-in thermal regulation to prevent overheating.

  6. What is the recommended operating temperature range for ISL9221IRZ?
    - The recommended operating temperature range for ISL9221IRZ is -40°C to 85°C.

  7. Can ISL9221IRZ be used in portable electronic devices?
    - Yes, ISL9221IRZ is suitable for use in various portable electronic devices such as smartphones and tablets.

  8. Does ISL9221IRZ support USB On-The-Go (OTG) functionality?
    - Yes, ISL9221IRZ supports USB OTG functionality for powering external peripherals.

  9. What is the typical charge voltage accuracy of ISL9221IRZ?
    - The typical charge voltage accuracy of ISL9221IRZ is ±0.5%.

  10. Is ISL9221IRZ compliant with safety and regulatory standards?
    - Yes, ISL9221IRZ is compliant with safety and regulatory standards such as IEC 62133 and UL 60950.