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ISL8845AMUZ-T
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ISL8845AMUZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Wide input voltage range - Adjustable output voltage - Current limit protection - Over-temperature protection

Package: 16-Lead QFN (Quad Flat No-Lead)

Essence: The ISL8845AMUZ-T is a highly efficient voltage regulator IC designed for various applications that require stable and adjustable output voltages.

Packaging/Quantity: The ISL8845AMUZ-T is available in a 16-Lead QFN package. It is typically sold in reels of 2500 units.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Output Voltage Range: 0.6V to 5.5V
  • Maximum Output Current: 8A
  • Switching Frequency: 300kHz to 1MHz
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The ISL8845AMUZ-T has the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. FB: Feedback voltage
  4. COMP: Compensation pin
  5. SS/TR: Soft-start/Tracking pin
  6. EN: Enable pin
  7. PGND: Power ground
  8. VCC: Supply voltage
  9. BOOT: Bootstrap capacitor connection
  10. LX: Switch node
  11. AGND: Analog ground
  12. NC: No connect
  13. NC: No connect
  14. NC: No connect
  15. NC: No connect
  16. VOUT: Output voltage

Functional Features

  • Wide input voltage range allows for versatile applications.
  • Adjustable output voltage provides flexibility.
  • High efficiency ensures minimal power loss.
  • Current limit protection prevents damage to the circuit.
  • Over-temperature protection safeguards against overheating.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings. - Wide input voltage range allows for compatibility with various power sources. - Adjustable output voltage provides customization options. - Current limit protection ensures circuit safety. - Over-temperature protection prevents damage due to excessive heat.

Disadvantages: - Limited maximum output current of 8A may not be suitable for high-power applications. - Switching frequency range may not be optimal for all designs.

Working Principles

The ISL8845AMUZ-T operates as a voltage regulator by converting the input voltage to a stable and adjustable output voltage. It utilizes a switching regulator topology to achieve high efficiency. The feedback voltage (FB) pin is used to set the desired output voltage, while the compensation (COMP) pin helps stabilize the control loop. The soft-start/tracking (SS/TR) pin enables gradual startup and tracking of the output voltage. The enable (EN) pin controls the on/off state of the regulator.

Detailed Application Field Plans

The ISL8845AMUZ-T can be used in various applications, including but not limited to: 1. Power supplies for computer systems 2. Industrial equipment 3. Telecommunications devices 4. Automotive electronics 5. LED lighting systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the ISL8845AMUZ-T are: 1. LM2576-ADJ 2. LT1084CP-ADJ 3. TPS5430-ADJ 4. MAX5033BUPA 5. MC34063AP1

These models offer similar functionality and can be used as replacements depending on specific requirements.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van ISL8845AMUZ-T in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of ISL8845AMUZ-T in technical solutions:

  1. Q: What is ISL8845AMUZ-T? A: ISL8845AMUZ-T is a high-performance, synchronous buck controller IC used for voltage regulation in various technical applications.

  2. Q: What is the input voltage range supported by ISL8845AMUZ-T? A: The input voltage range supported by ISL8845AMUZ-T is typically between 4.5V and 28V.

  3. Q: What is the output voltage range that can be achieved using ISL8845AMUZ-T? A: The output voltage range achievable with ISL8845AMUZ-T depends on the external components used, but it can typically range from 0.6V to 5.5V.

  4. Q: What is the maximum output current that ISL8845AMUZ-T can handle? A: ISL8845AMUZ-T can handle a maximum output current of up to 25A, depending on the thermal design and external components used.

  5. Q: Does ISL8845AMUZ-T have built-in protection features? A: Yes, ISL8845AMUZ-T includes various built-in protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.

  6. Q: Can ISL8845AMUZ-T operate in a wide temperature range? A: Yes, ISL8845AMUZ-T is designed to operate in a wide temperature range, typically from -40°C to +125°C.

  7. Q: What type of control method does ISL8845AMUZ-T use? A: ISL8845AMUZ-T uses voltage mode control, which provides stable and efficient regulation of the output voltage.

  8. Q: Can ISL8845AMUZ-T be used in both step-up and step-down applications? A: No, ISL8845AMUZ-T is specifically designed for step-down (buck) applications only.

  9. Q: What is the typical switching frequency of ISL8845AMUZ-T? A: The typical switching frequency of ISL8845AMUZ-T is around 300kHz, but it can be adjusted using external components.

  10. Q: Is there any reference design available for ISL8845AMUZ-T? A: Yes, Intersil provides reference designs and application notes that can help users implement ISL8845AMUZ-T in their technical solutions effectively.

Please note that the answers provided here are general and may vary depending on specific application requirements and design considerations.