Infineon Technologies
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IR3847MTRPBF
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IR3847MTRPBF

Product Overview

Category: Power Management ICs
Use: Voltage Regulator
Characteristics: High efficiency, compact size
Package: 40-Lead QFN
Essence: Integrated Voltage Regulator
Packaging/Quantity: Tape & Reel, 250 units per reel

Specifications

  • Input Voltage Range: 4.5V to 16V
  • Output Voltage Range: 0.6V to 1.8V
  • Output Current: Up to 30A
  • Efficiency: Up to 95%
  • Switching Frequency: 500kHz to 1MHz
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The IR3847MTRPBF features a 40-lead QFN package with the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. VOUT: Output voltage
  4. COMP: Compensation pin
  5. FB: Feedback pin
  6. EN: Enable pin
  7. PG: Power Good indicator
  8. SS: Soft-start pin
  9. BOOT: Bootstrap capacitor connection
  10. PHASE: Phase node connection
  11. LGATE: Low-side MOSFET gate driver
  12. PGND: Power ground
  13. AGND: Analog ground
  14. BST: Bootstrap supply voltage
  15. VCC: Internal control voltage
  16. RT: Timing resistor connection
  17. CT: Timing capacitor connection
  18. SS/TR: Soft-start and tracking pin
  19. OCSET: Overcurrent protection threshold setting
  20. SYNC: Synchronization input

Functional Features

  • Integrated high-efficiency synchronous buck regulator
  • Wide input voltage range for versatile applications
  • Adjustable output voltage for flexibility
  • Excellent load and line regulation
  • Overcurrent protection for enhanced safety
  • Power Good indicator for system monitoring
  • Soft-start and tracking capability for controlled startup
  • Synchronization input for multi-phase operation

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Compact size saves board space - Wide input voltage range allows compatibility with various power sources - Adjustable output voltage suits different requirements - Overcurrent protection enhances system reliability

Disadvantages: - Limited output current may not be suitable for high-power applications - Higher cost compared to non-integrated voltage regulators

Working Principles

The IR3847MTRPBF is a synchronous buck regulator that converts a higher input voltage to a lower output voltage. It utilizes high-frequency switching to efficiently regulate the output voltage. The integrated control circuitry ensures stable and accurate voltage regulation, while the MOSFET switches provide efficient power conversion. The device also incorporates various protection features to safeguard against overcurrent and other faults.

Detailed Application Field Plans

The IR3847MTRPBF finds applications in various fields, including:

  1. Telecommunications: Powering base stations, routers, and network equipment.
  2. Data Centers: Providing voltage regulation for servers, storage systems, and networking devices.
  3. Industrial Automation: Powering control systems, motor drives, and PLCs.
  4. Automotive Electronics: Regulating voltage for infotainment systems, advanced driver-assistance systems (ADAS), and lighting modules.
  5. Consumer Electronics: Powering gaming consoles, set-top boxes, and audio/video equipment.

Detailed and Complete Alternative Models

  1. IR3899MTRPBF: Similar specifications with higher output current capability.
  2. IR3837MTRPBF: Lower output current but more cost-effective.
  3. IRDC3847MTRPBF: Integrated voltage regulator with integrated digital control for advanced applications.
  4. IR3847MTRPBF-1: Enhanced version with additional protection features.

Note: This is not an exhaustive list, and there may be other alternative models available from the manufacturer.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням IR3847MTRPBF у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of IR3847MTRPBF in technical solutions:

  1. Q: What is the IR3847MTRPBF? A: The IR3847MTRPBF is a high-performance integrated power module designed for various technical applications.

  2. Q: What are the key features of the IR3847MTRPBF? A: The key features include high efficiency, compact size, integrated MOSFETs, advanced protection features, and wide input voltage range.

  3. Q: What technical solutions can benefit from using the IR3847MTRPBF? A: The IR3847MTRPBF is commonly used in applications such as servers, telecom equipment, industrial automation, and power supplies.

  4. Q: What is the input voltage range supported by the IR3847MTRPBF? A: The IR3847MTRPBF supports an input voltage range of typically 4.5V to 16V.

  5. Q: What is the output current capability of the IR3847MTRPBF? A: The IR3847MTRPBF can deliver up to 47A of continuous output current.

  6. Q: Does the IR3847MTRPBF require any external components for operation? A: Yes, the IR3847MTRPBF requires external input/output capacitors and inductors for proper operation.

  7. Q: What protection features are integrated into the IR3847MTRPBF? A: The IR3847MTRPBF includes protection against overcurrent, overvoltage, undervoltage, and overtemperature conditions.

  8. Q: Can the IR3847MTRPBF be used in parallel for higher power applications? A: Yes, multiple IR3847MTRPBF modules can be paralleled to achieve higher power output.

  9. Q: What is the efficiency of the IR3847MTRPBF? A: The IR3847MTRPBF offers high efficiency levels, typically above 95%, depending on the operating conditions.

  10. Q: Is there any documentation available for designing with the IR3847MTRPBF? A: Yes, the manufacturer provides a datasheet and application notes that provide detailed information on designing with the IR3847MTRPBF.

Please note that these answers are general and may vary based on specific technical requirements and application scenarios.