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IR3842WMTRPBF

IR3842WMTRPBF

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: High efficiency, compact size, wide input voltage range
  • Package: 5x6 mm QFN package
  • Essence: Monolithic synchronous buck regulator
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 21V
  • Output Voltage Range: 0.6V to 16V
  • Maximum Output Current: 20A
  • Switching Frequency: 300kHz to 1MHz
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The IR3842WMTRPBF has a total of 12 pins. The pin configuration is as follows:

  1. VIN: Input voltage pin
  2. PGND: Power ground pin
  3. BOOT: Bootstrap capacitor connection pin
  4. PHASE: Phase node connection pin
  5. VCC: Control supply voltage pin
  6. COMP: Compensation pin
  7. SS/TR: Soft-start/tracking pin
  8. FB: Feedback voltage pin
  9. EN: Enable pin
  10. LGATE: Low-side gate driver output pin
  11. PGATE: Power ground pin for the low-side gate driver
  12. SW: Switching node pin

Functional Features

  • Monolithic synchronous buck regulator with integrated power MOSFETs
  • Adaptive dead-time control for improved efficiency
  • Programmable soft-start and tracking functions
  • Overcurrent protection with adjustable current limit
  • Thermal shutdown protection
  • Fault flag indication for easy system monitoring

Advantages and Disadvantages

Advantages: - High efficiency resulting in reduced power dissipation - Compact size suitable for space-constrained applications - Wide input voltage range allows for versatile usage

Disadvantages: - Limited maximum output current of 20A - Requires external components for proper operation

Working Principles

The IR3842WMTRPBF is a monolithic synchronous buck regulator that converts a higher input voltage to a lower output voltage. It utilizes integrated power MOSFETs to achieve high efficiency. The control circuitry adjusts the duty cycle of the switching signal to regulate the output voltage. Adaptive dead-time control minimizes power losses during switching transitions. The soft-start and tracking functions ensure a controlled startup and synchronization with other power supplies.

Detailed Application Field Plans

The IR3842WMTRPBF is commonly used in various applications, including but not limited to: - Desktop computers and servers - Telecommunications equipment - Industrial automation systems - Power distribution units - LED lighting systems - Automotive electronics

Detailed and Complete Alternative Models

  1. IR3843WMTRPBF: Similar to IR3842WMTRPBF but with a higher maximum output current of 30A.
  2. IR3844WMTRPBF: Similar to IR3842WMTRPBF but with a lower maximum output current of 15A.
  3. IR3845WMTRPBF: Similar to IR3842WMTRPBF but with a wider input voltage range of 4.5V to 60V.

These alternative models provide flexibility in choosing the appropriate voltage regulator based on specific application requirements.

In conclusion, the IR3842WMTRPBF is a highly efficient and compact voltage regulator suitable for a wide range of applications. Its integrated features, such as adaptive dead-time control and programmable soft-start, make it a versatile choice for various power supply designs. However, its limited maximum output current and requirement for external components should be considered when selecting this IC for a particular application.

Orodhesha maswali na majibu 10 ya kawaida yanayohusiana na utumiaji wa IR3842WMTRPBF katika suluhu za kiufundi

  1. Question: What is the maximum input voltage for IR3842WMTRPBF?
    Answer: The maximum input voltage for IR3842WMTRPBF is 19V.

  2. Question: What is the typical output current of IR3842WMTRPBF?
    Answer: The typical output current of IR3842WMTRPBF is 20A.

  3. Question: What is the switching frequency range of IR3842WMTRPBF?
    Answer: The switching frequency range of IR3842WMTRPBF is 200kHz to 2.2MHz.

  4. Question: Does IR3842WMTRPBF have overcurrent protection?
    Answer: Yes, IR3842WMTRPBF features overcurrent protection.

  5. Question: What is the operating temperature range for IR3842WMTRPBF?
    Answer: The operating temperature range for IR3842WMTRPBF is -40°C to 125°C.

  6. Question: Can IR3842WMTRPBF be used in automotive applications?
    Answer: Yes, IR3842WMTRPBF is suitable for automotive applications.

  7. Question: What type of package does IR3842WMTRPBF come in?
    Answer: IR3842WMTRPBF is available in a 5x6 PQFN package.

  8. Question: Is IR3842WMTRPBF RoHS compliant?
    Answer: Yes, IR3842WMTRPBF is RoHS compliant.

  9. Question: What is the typical efficiency of IR3842WMTRPBF?
    Answer: The typical efficiency of IR3842WMTRPBF is 95%.

  10. Question: Can IR3842WMTRPBF be used in point-of-load (POL) applications?
    Answer: Yes, IR3842WMTRPBF is suitable for point-of-load (POL) applications.