Maxim Integrated
Imaginea poate fi reprezentativă.
Consultați specificațiile pentru detalii despre produs.
MAX5972BETE+T
Vezi detalii Foi de date

MAX5972BETE+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High-Efficiency Step-Down Converter
  • Package: 16-TQFN (4mm x 4mm)
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 76V
  • Output Voltage Range: 0.8V to 5.5V
  • Maximum Output Current: 3A
  • Efficiency: Up to 95%
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MAX5972BETE+T has a total of 16 pins arranged as follows:

  1. VIN: Input Voltage
  2. GND: Ground
  3. EN: Enable Pin
  4. FB: Feedback Pin
  5. SS/TRK: Soft-Start/Tracking Pin
  6. PGND: Power Ground
  7. SW: Switch Node
  8. SW: Switch Node
  9. SW: Switch Node
  10. SW: Switch Node
  11. VOUT: Output Voltage
  12. VOUT: Output Voltage
  13. VOUT: Output Voltage
  14. VOUT: Output Voltage
  15. PGND: Power Ground
  16. PGND: Power Ground

Functional Features

  • High-efficiency step-down converter for power management applications
  • Wide input voltage range allows for versatile usage
  • Adjustable output voltage provides flexibility
  • High switching frequency enables compact design
  • Integrated soft-start and tracking functionality for smooth operation
  • Overcurrent and thermal protection ensures device safety

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption - Wide input voltage range allows for compatibility with various power sources - Adjustable output voltage provides flexibility for different applications - Integrated protection features enhance device reliability

Disadvantages: - Limited maximum output current may restrict usage in high-power applications - Higher switching frequency may introduce additional noise

Working Principles

The MAX5972BETE+T is a step-down converter that converts a higher input voltage to a lower output voltage. It utilizes a high-frequency switching technique to efficiently regulate the output voltage. The input voltage is first rectified and filtered, then fed into the integrated circuit. The IC controls the switching of the internal power MOSFETs to regulate the output voltage according to the feedback received from the FB pin. The soft-start and tracking functionality ensure a smooth startup and operation of the converter.

Detailed Application Field Plans

The MAX5972BETE+T is commonly used in various power management applications, including but not limited to:

  1. Industrial equipment
  2. Automotive electronics
  3. Telecommunications systems
  4. Consumer electronics
  5. Medical devices

Due to its wide input voltage range and adjustable output voltage, it can be utilized in diverse applications requiring efficient power conversion.

Detailed and Complete Alternative Models

  1. MAX5971BETE+T: Similar specifications, but with a lower maximum output current of 2A.
  2. MAX5973BETE+T: Similar specifications, but with a higher maximum output current of 4A.
  3. MAX5974BETE+T: Similar specifications, but with a higher maximum output current of 5A.
  4. MAX5975BETE+T: Similar specifications, but with a higher maximum output current of 6A.

These alternative models provide options with varying output current capabilities to suit different power requirements.

Word count: 346 words

Enumerați 10 întrebări și răspunsuri comune legate de aplicarea lui MAX5972BETE+T în soluțiile tehnice

Sure! Here are 10 common questions and answers related to the application of MAX5972BETE+T in technical solutions:

1. What is the MAX5972BETE+T? The MAX5972BETE+T is a power-over-Ethernet (PoE) controller that integrates both the PoE PD interface and DC-DC converter control.

2. What is the purpose of the MAX5972BETE+T? The MAX5972BETE+T is designed to provide power and data connectivity to Ethernet-enabled devices over a single Ethernet cable, eliminating the need for separate power cables.

3. What is the maximum power output of the MAX5972BETE+T? The MAX5972BETE+T can deliver up to 25.5W of power to the connected device.

4. Can the MAX5972BETE+T be used with any Ethernet device? Yes, the MAX5972BETE+T is compatible with a wide range of Ethernet devices, including IP cameras, wireless access points, VoIP phones, and other powered devices.

5. Does the MAX5972BETE+T support IEEE 802.3af and IEEE 802.3at standards? Yes, the MAX5972BETE+T supports both the IEEE 802.3af (PoE) and IEEE 802.3at (PoE+) standards, allowing it to power devices compliant with either standard.

6. How does the MAX5972BETE+T handle power management? The MAX5972BETE+T features advanced power management capabilities, including current limiting, thermal shutdown, and short-circuit protection, to ensure safe and reliable operation.

7. Can the MAX5972BETE+T be used in high-temperature environments? Yes, the MAX5972BETE+T is designed to operate in a wide temperature range, typically from -40°C to +85°C, making it suitable for various industrial and outdoor applications.

8. What is the input voltage range of the MAX5972BETE+T? The MAX5972BETE+T accepts an input voltage range of 36V to 57V, which is commonly found in PoE-enabled Ethernet switches or midspans.

9. Does the MAX5972BETE+T require any external components? Yes, the MAX5972BETE+T requires external components such as an inductor, capacitors, and resistors to complete the power supply circuitry.

10. Is there any evaluation board available for the MAX5972BETE+T? Yes, Maxim Integrated provides an evaluation kit (MAX5972EVKIT) that includes the MAX5972BETE+T and all necessary components for easy prototyping and testing.

Please note that these answers are general and may vary depending on specific application requirements.