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ISL6843IBZ
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ISL6843IBZ

Product Overview

Category

The ISL6843IBZ belongs to the category of voltage mode PWM controllers.

Use

It is used in power management applications, particularly in DC-DC converters and voltage regulators.

Characteristics

  • Voltage mode PWM controller
  • Suitable for high-frequency switching applications
  • Offers precise regulation and control over output voltage

Package

The ISL6843IBZ comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of the ISL6843IBZ lies in its ability to efficiently regulate and control voltage in power management systems.

Packaging/Quantity

The ISL6843IBZ is typically available in reels with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 14V
  • Output Voltage Range: 0.6V to 5.5V
  • Operating Temperature Range: -40°C to 125°C
  • Oscillator Frequency Range: 100kHz to 1MHz
  • Maximum Duty Cycle: 95%

Detailed Pin Configuration

The ISL6843IBZ has a standard pin configuration with pins for VCC, GND, COMP, FB, SS/TR, RT/CLK, SYNC, and PWMOUT.

Functional Features

  • Voltage mode control loop
  • Adjustable soft-start
  • Synchronization capability
  • Overcurrent protection
  • Thermal shutdown protection

Advantages and Disadvantages

Advantages

  • High precision voltage regulation
  • Wide input and output voltage range
  • Flexible frequency and duty cycle control
  • Integrated protection features

Disadvantages

  • Limited maximum duty cycle
  • May require external components for specific applications

Working Principles

The ISL6843IBZ operates on the principle of voltage mode control, where it compares the actual output voltage with a reference voltage and adjusts the duty cycle of the PWM signal to maintain the desired output voltage.

Detailed Application Field Plans

The ISL6843IBZ is commonly used in: - Point-of-load converters - Battery charging systems - LED lighting drivers - Industrial power supplies

Detailed and Complete Alternative Models

Some alternative models to the ISL6843IBZ include: - LT3757 - LM5118 - MAX15062

In conclusion, the ISL6843IBZ is a versatile voltage mode PWM controller that offers precise regulation and control over output voltage in various power management applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ISL6843IBZ v technických řešeních

  1. What is the ISL6843IBZ?

    • The ISL6843IBZ is a voltage mode PWM controller designed for high frequency power supply applications.

  2. What is the input voltage range of the ISL6843IBZ?

    • The input voltage range of the ISL6843IBZ is typically 8V to 14V.

  3. What is the maximum switching frequency of the ISL6843IBZ?

    • The maximum switching frequency of the ISL6843IBZ is typically 1MHz.

  4. What type of protection features does the ISL6843IBZ offer?

    • The ISL6843IBZ offers overcurrent protection, overvoltage protection, and thermal shutdown protection.

  5. Can the ISL6843IBZ be used in synchronous buck converter designs?

    • Yes, the ISL6843IBZ can be used in synchronous buck converter designs.

  6. What is the typical efficiency of a power supply using the ISL6843IBZ?

    • The typical efficiency of a power supply using the ISL6843IBZ is around 90% under normal operating conditions.

  7. Does the ISL6843IBZ support adjustable soft-start functionality?

    • Yes, the ISL6843IBZ supports adjustable soft-start functionality.

  8. What is the recommended operating temperature range for the ISL6843IBZ?

    • The recommended operating temperature range for the ISL6843IBZ is typically -40°C to 85°C.

  9. Can the ISL6843IBZ be used in automotive applications?

    • Yes, the ISL6843IBZ is suitable for use in automotive applications.

  10. Is there a reference design available for the ISL6843IBZ?

    • Yes, Intersil provides reference designs and application notes for implementing the ISL6843IBZ in various technical solutions.