Infineon Technologies
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IR21571STRPBF
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IR21571STRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High voltage level shifting - Low-side and high-side gate driver - Floating channel designed for bootstrap operation - Built-in deadtime generation - Under-voltage lockout protection - Over-current protection - Fault reporting - Thermal shutdown protection

Package: TO-263-7 (D2PAK-7)

Essence: The IR21571STRPBF is a power management IC that provides high voltage level shifting and gate driving capabilities for power MOSFETs in various applications.

Packaging/Quantity: The IR21571STRPBF is available in a TO-263-7 package, commonly known as D2PAK-7. It is sold individually or in reels of specified quantities.

Specifications

  • Supply Voltage Range: 10V to 20V
  • Maximum Operating Temperature: 150°C
  • Output Current: ±2A
  • Input Logic Compatibility: CMOS, TTL
  • Propagation Delay: 100ns (typical)
  • Rise/Fall Time: 30ns (typical)
  • Fault Reporting Threshold: 5V (typical)

Detailed Pin Configuration

The IR21571STRPBF has the following pin configuration:

  1. VCC - Power supply input
  2. VB - Bootstrap supply input
  3. HO - High-side gate driver output
  4. LO - Low-side gate driver output
  5. COM - Common connection for bootstrap capacitor and low-side gate driver return
  6. SD - Shutdown input for fault reporting
  7. GND - Ground reference

Functional Features

  • High voltage level shifting: Allows control signals from low voltage logic circuits to drive high voltage power MOSFETs.
  • Low-side and high-side gate driver: Provides independent control of the low-side and high-side power MOSFETs.
  • Floating channel for bootstrap operation: Enables efficient driving of the high-side MOSFET by utilizing a bootstrap capacitor.
  • Built-in deadtime generation: Prevents shoot-through current during switching transitions.
  • Under-voltage lockout protection: Ensures proper operation within specified voltage range.
  • Over-current protection: Safeguards against excessive current flow.
  • Fault reporting: Provides feedback on fault conditions.
  • Thermal shutdown protection: Prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - High voltage level shifting capability - Comprehensive protection features - Efficient bootstrap operation - Compact TO-263-7 package

Disadvantages: - Limited output current capacity (±2A)

Working Principles

The IR21571STRPBF operates by receiving control signals from a low voltage logic circuit, which are then level shifted to drive the high voltage power MOSFETs. The floating channel and bootstrap capacitor enable efficient driving of the high-side MOSFET. The built-in deadtime generation prevents simultaneous conduction of the low-side and high-side MOSFETs, avoiding shoot-through current. The IC incorporates various protection mechanisms such as under-voltage lockout, over-current protection, fault reporting, and thermal shutdown to ensure safe and reliable operation.

Detailed Application Field Plans

The IR21571STRPBF is commonly used in the following applications: 1. Switching power supplies 2. Motor drives 3. Inverters 4. Uninterruptible Power Supplies (UPS) 5. Solar inverters 6. LED lighting systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the IR21571STRPBF include: - IR2155 - IRS2106 - IRS21844 - FAN7382 - HIP4081A

These alternative models can be considered based on specific application requirements and availability.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق IR21571STRPBF في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of IR21571STRPBF in technical solutions:

  1. Q: What is IR21571STRPBF? A: IR21571STRPBF is a specific model number for an integrated circuit (IC) manufactured by Infineon Technologies. It is commonly used in power electronics applications.

  2. Q: What is the typical voltage rating for IR21571STRPBF? A: The typical voltage rating for IR21571STRPBF is around 600V, making it suitable for high-voltage applications.

  3. Q: What are the main features of IR21571STRPBF? A: Some key features of IR21571STRPBF include high-speed switching capability, low on-resistance, built-in protection features, and compatibility with various control methods.

  4. Q: In which applications can IR21571STRPBF be used? A: IR21571STRPBF is commonly used in applications such as motor drives, power supplies, inverters, and other power electronic systems that require efficient switching and control of high voltages.

  5. Q: What is the maximum current rating for IR21571STRPBF? A: The maximum current rating for IR21571STRPBF varies depending on the specific package and cooling conditions but can typically handle currents up to several tens of amperes.

  6. Q: Does IR21571STRPBF have built-in protection features? A: Yes, IR21571STRPBF incorporates various protection features like overcurrent protection, over-temperature protection, and undervoltage lockout to ensure safe operation and prevent damage to the IC.

  7. Q: Can IR21571STRPBF operate at high temperatures? A: Yes, IR21571STRPBF is designed to operate at high temperatures. However, it is important to consider proper cooling and thermal management techniques for optimal performance and reliability.

  8. Q: What control methods are compatible with IR21571STRPBF? A: IR21571STRPBF is compatible with various control methods such as voltage mode control, current mode control, and hysteretic control, allowing flexibility in different system designs.

  9. Q: Is IR21571STRPBF suitable for both AC and DC applications? A: Yes, IR21571STRPBF can be used in both AC and DC applications due to its ability to handle high voltages and switch currents in either polarity.

  10. Q: Are there any application notes or reference designs available for IR21571STRPBF? A: Yes, Infineon Technologies provides application notes, datasheets, and reference designs for IR21571STRPBF on their official website. These resources can help users understand the IC's capabilities and optimize its usage in specific technical solutions.

Please note that the answers provided here are general and may vary depending on the specific requirements and conditions of each application.