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ISL94208IRZ
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ISL94208IRZ

Product Overview

Category

ISL94208IRZ belongs to the category of integrated battery management systems (BMS).

Use

The ISL94208IRZ is used for monitoring and controlling rechargeable lithium-ion battery packs.

Characteristics

  • Integrated BMS solution
  • High accuracy voltage and current measurement
  • Overvoltage and undervoltage protection
  • Overcurrent protection
  • Temperature monitoring
  • Cell balancing capability

Package

The ISL94208IRZ comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of ISL94208IRZ lies in its ability to provide comprehensive battery management functions in a single integrated circuit.

Packaging/Quantity

The ISL94208IRZ is typically sold in reels containing 250 units per reel.

Specifications

  • Input Voltage Range: 2.7V to 4.5V
  • Operating Temperature Range: -40°C to +85°C
  • Number of Cells Supported: Up to 8 series-connected lithium-ion cells
  • Cell Voltage Measurement Accuracy: ±10mV
  • Current Measurement Accuracy: ±1%
  • Balancing Current: Up to 100mA per cell
  • Communication Interface: I2C

Detailed Pin Configuration

The ISL94208IRZ has a total of 24 pins. The pin configuration is as follows:

  1. VDD
  2. SDA
  3. SCL
  4. ALERT
  5. GND
  6. BAT1
  7. BAT2
  8. BAT3
  9. BAT4
  10. BAT5
  11. BAT6
  12. BAT7
  13. BAT8
  14. TS1
  15. TS2
  16. TS3
  17. TS4
  18. TS5
  19. TS6
  20. TS7
  21. TS8
  22. VREF
  23. VSS
  24. VDD

Functional Features

  • Accurate voltage and current measurement for each cell
  • Overvoltage and undervoltage protection to prevent cell damage
  • Overcurrent protection to safeguard against excessive discharge or charging currents
  • Temperature monitoring to prevent overheating
  • Cell balancing capability to equalize the charge levels of individual cells

Advantages and Disadvantages

Advantages

  • Integrated solution reduces the need for external components
  • High accuracy measurements ensure precise battery management
  • Comprehensive protection features enhance battery safety
  • Cell balancing capability extends battery pack lifespan

Disadvantages

  • Limited to supporting up to 8 series-connected lithium-ion cells
  • Requires I2C communication interface for configuration and control

Working Principles

The ISL94208IRZ works by continuously monitoring the voltage, current, and temperature of each cell in a lithium-ion battery pack. It uses these measurements to implement various protection mechanisms such as overvoltage, undervoltage, and overcurrent protection. The integrated cell balancing circuitry ensures that all cells are charged and discharged evenly, maximizing the overall capacity and lifespan of the battery pack.

Detailed Application Field Plans

The ISL94208IRZ is widely used in applications where rechargeable lithium-ion battery packs require comprehensive monitoring and control. Some common application fields include:

  1. Electric vehicles (EVs) and hybrid electric vehicles (HEVs)
  2. Energy storage systems (ESS)
  3. Portable electronic devices
  4. Uninterruptible power supplies (UPS)
  5. Solar power systems

Detailed and Complete Alternative Models

  1. BQ76940 - Texas Instruments
  2. LTC6804 - Analog Devices
  3. MAX14920 - Maxim Integrated
  4. BM1383AGLV - ROHM Semiconductor
  5. MCP73871 - Microchip Technology

These alternative models offer similar functionality to the ISL94208IRZ and can be considered as alternatives depending on specific application requirements.

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10 سوال و پاسخ رایج مربوط به کاربرد ISL94208IRZ در راه حل های فنی را فهرست کنید

Sure! Here are 10 common questions and answers related to the application of ISL94208IRZ in technical solutions:

  1. Q: What is ISL94208IRZ? A: ISL94208IRZ is a highly integrated battery management IC (BMS) designed for multi-cell lithium-ion battery packs.

  2. Q: What is the maximum number of cells that ISL94208IRZ can support? A: ISL94208IRZ can support up to 8 series-connected lithium-ion cells.

  3. Q: What are the key features of ISL94208IRZ? A: Some key features include cell balancing, voltage and temperature monitoring, overcurrent protection, and communication interfaces.

  4. Q: How does ISL94208IRZ perform cell balancing? A: ISL94208IRZ uses an internal balancing circuitry to equalize the charge levels of individual cells in a battery pack.

  5. Q: Can ISL94208IRZ measure cell voltages accurately? A: Yes, ISL94208IRZ has a high-accuracy voltage measurement capability with a typical accuracy of ±0.25%.

  6. Q: Does ISL94208IRZ provide overcurrent protection? A: Yes, ISL94208IRZ has built-in overcurrent protection to safeguard the battery pack from excessive current flow.

  7. Q: What communication interfaces are supported by ISL94208IRZ? A: ISL94208IRZ supports I2C and SMBus interfaces for communication with external devices.

  8. Q: Can ISL94208IRZ monitor battery temperature? A: Yes, ISL94208IRZ has a built-in temperature sensor to monitor the temperature of the battery pack.

  9. Q: Is ISL94208IRZ suitable for automotive applications? A: Yes, ISL94208IRZ is designed to meet the stringent requirements of automotive applications and is AEC-Q100 qualified.

  10. Q: What are some typical applications of ISL94208IRZ? A: ISL94208IRZ is commonly used in electric vehicles, energy storage systems, power tools, and other applications that require battery management.

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