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MAX5948AESA+
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MAX5948AESA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High-efficiency, step-down DC-DC converter - Wide input voltage range - Adjustable output voltage - Low quiescent current - Overcurrent and thermal protection

Package: SOIC (Small Outline Integrated Circuit)

Essence: The MAX5948AESA+ is a power management IC that provides a high-efficiency, step-down DC-DC converter for various applications.

Packaging/Quantity: The MAX5948AESA+ is available in a standard SOIC package. It is typically sold in reels of 250 units.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Output Voltage Range: 0.6V to VIN
  • Maximum Output Current: 2A
  • Quiescent Current: 60µA
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX5948AESA+ has the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. EN: Enable pin
  4. FB: Feedback pin
  5. SS/TR: Soft-start/Tracking pin
  6. PGND: Power ground pin
  7. LX: Inductor connection pin
  8. VOUT: Output voltage pin

Functional Features

  • High efficiency: The MAX5948AESA+ utilizes a high-efficiency step-down DC-DC converter, minimizing power losses.
  • Wide input voltage range: It can accept input voltages ranging from 4.5V to 28V, making it suitable for a variety of applications.
  • Adjustable output voltage: The output voltage can be adjusted from 0.6V to the input voltage (VIN).
  • Low quiescent current: The IC has a low quiescent current of only 60µA, reducing power consumption during standby or idle periods.
  • Overcurrent and thermal protection: The MAX5948AESA+ incorporates overcurrent and thermal protection mechanisms to ensure safe operation.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Low quiescent current minimizes standby power consumption - Overcurrent and thermal protection enhance safety

Disadvantages: - Limited maximum output current (2A) - Single package option (SOIC)

Working Principles

The MAX5948AESA+ operates as a step-down DC-DC converter. It converts a higher input voltage to a lower output voltage using a switching regulator topology. The IC utilizes high-frequency switching to minimize power losses and maximize efficiency. The feedback mechanism ensures that the output voltage remains stable and within the desired range.

Detailed Application Field Plans

The MAX5948AESA+ finds applications in various fields, including but not limited to: 1. Portable electronic devices 2. Industrial automation 3. Automotive electronics 4. Power supply modules 5. Battery-powered systems

Detailed and Complete Alternative Models

  1. MAX5948BESA+: Similar to MAX5948AESA+, but with a different package (SOIC) and pin configuration.
  2. MAX5949AESA+: Higher maximum output current (3A) compared to MAX5948AESA+.
  3. MAX5950AESA+: Step-up DC-DC converter with similar characteristics to MAX5948AESA+.

These alternative models provide options based on specific requirements and preferences.

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Liste 10 perguntas e respostas comuns relacionadas à aplicação de MAX5948AESA+ em soluções técnicas

Sure! Here are 10 common questions and answers related to the application of MAX5948AESA+ in technical solutions:

  1. Q: What is the MAX5948AESA+?
    A: The MAX5948AESA+ is a power management IC designed for PoE (Power over Ethernet) applications.

  2. Q: What is the maximum input voltage supported by the MAX5948AESA+?
    A: The MAX5948AESA+ supports an input voltage range of 36V to 57V.

  3. Q: Can the MAX5948AESA+ provide power to multiple devices simultaneously?
    A: Yes, the MAX5948AESA+ can provide power to up to eight devices simultaneously.

  4. Q: What is the maximum output current per channel supported by the MAX5948AESA+?
    A: The MAX5948AESA+ can provide a maximum output current of 350mA per channel.

  5. Q: Is the MAX5948AESA+ compatible with both IEEE 802.3af and IEEE 802.3at standards?
    A: Yes, the MAX5948AESA+ is compatible with both IEEE 802.3af and IEEE 802.3at standards.

  6. Q: Can the MAX5948AESA+ be used in high-temperature environments?
    A: Yes, the MAX5948AESA+ has a wide operating temperature range of -40°C to +85°C, making it suitable for high-temperature environments.

  7. Q: Does the MAX5948AESA+ have built-in protection features?
    A: Yes, the MAX5948AESA+ includes various protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.

  8. Q: Can the MAX5948AESA+ be used in both indoor and outdoor applications?
    A: Yes, the MAX5948AESA+ is suitable for both indoor and outdoor applications.

  9. Q: What is the package type of the MAX5948AESA+?
    A: The MAX5948AESA+ comes in a 16-pin narrow SOIC (Small Outline Integrated Circuit) package.

  10. Q: Is there any evaluation kit available for the MAX5948AESA+?
    A: Yes, Maxim Integrated provides an evaluation kit, MAX5948EVKIT#, which allows users to easily evaluate and test the MAX5948AESA+ in their applications.

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