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TPS28225DG4
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TPS28225DG4

Overview

Category: Integrated Circuits (ICs)

Use: Power Management

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: SOIC-8

Essence: The TPS28225DG4 is a high-performance synchronous buck gate driver IC.

Packaging/Quantity: Available in reels of 2500 units.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Output Voltage Range: 0.8V to VIN
  • Maximum Output Current: 2A
  • Operating Temperature Range: -40°C to +125°C
  • Switching Frequency: Up to 1MHz

Detailed Pin Configuration

The TPS28225DG4 has the following pin configuration:

  1. GND (Ground)
  2. VCC (Power Supply)
  3. BOOT (Bootstrap Capacitor Connection)
  4. PH (High-Side MOSFET Gate Drive)
  5. PVCC (Power Supply for High-Side Gate Driver)
  6. PGND (Ground for High-Side Gate Driver)
  7. LX (Switch Node Connection)
  8. FB (Feedback Voltage Input)

Functional Features

  • Integrated bootstrap diode
  • Adaptive shoot-through protection
  • Adjustable dead time control
  • Enable input for power sequencing
  • Soft-start functionality
  • Error flag output for fault detection

Advantages and Disadvantages

Advantages: - High efficiency improves overall system performance - Wide input voltage range allows for versatile applications - Adaptive shoot-through protection enhances reliability - Adjustable dead time control optimizes switching performance - Error flag output simplifies fault detection

Disadvantages: - Limited maximum output current may restrict certain high-power applications - Requires external components for complete power management solution

Working Principles

The TPS28225DG4 is designed to drive the high-side and low-side MOSFETs in a synchronous buck converter. It utilizes adaptive shoot-through protection and adjustable dead time control to optimize switching performance and prevent shoot-through current. The integrated bootstrap diode simplifies the design by eliminating the need for an external diode.

Detailed Application Field Plans

The TPS28225DG4 is commonly used in various power management applications, including but not limited to: - DC-DC converters - Voltage regulators - Power supplies - Battery chargers - LED drivers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the TPS28225DG4 are: - TPS28225DRBT - TPS28225DRCR - TPS28225DRCT - TPS28225DRYR

These models offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific applications.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TPS28225DG4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of TPS28225DG4 in technical solutions:

  1. Q: What is TPS28225DG4? A: TPS28225DG4 is a dual-channel, high-speed gate driver IC designed for driving N-channel power MOSFETs or IGBTs in high-frequency applications.

  2. Q: What is the maximum operating voltage of TPS28225DG4? A: The maximum operating voltage of TPS28225DG4 is 18V.

  3. Q: What is the typical output current capability of TPS28225DG4? A: The typical output current capability of TPS28225DG4 is ±2A.

  4. Q: Can TPS28225DG4 be used with both MOSFETs and IGBTs? A: Yes, TPS28225DG4 can be used with both N-channel power MOSFETs and IGBTs.

  5. Q: What is the switching frequency range supported by TPS28225DG4? A: TPS28225DG4 supports a wide switching frequency range from 0Hz to 2MHz.

  6. Q: Does TPS28225DG4 have built-in protection features? A: Yes, TPS28225DG4 has various built-in protection features such as undervoltage lockout (UVLO), overcurrent protection (OCP), and thermal shutdown (TSD).

  7. Q: Can TPS28225DG4 operate in a high-temperature environment? A: Yes, TPS28225DG4 has a wide operating temperature range of -40°C to 140°C, making it suitable for high-temperature applications.

  8. Q: What is the input logic voltage level required for TPS28225DG4? A: The input logic voltage level required for TPS28225DG4 is compatible with both 3.3V and 5V logic systems.

  9. Q: Can TPS28225DG4 be used in automotive applications? A: Yes, TPS28225DG4 is qualified for automotive applications and meets the AEC-Q100 standard.

  10. Q: What is the package type of TPS28225DG4? A: TPS28225DG4 is available in a small 8-pin SOIC (D) package.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult the manufacturer for detailed information.