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MAX4987AEETA+TG05

MAX4987AEETA+TG05

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
  • Package: 8-Pin TDFN (Thin Dual Flat No-Lead)
  • Essence: Power Supply Controller
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 4.5V to 60V
  • Output Voltage Range: 0.6V to 55V
  • Quiescent Current: 25µA
  • Switching Frequency: 100kHz to 2MHz
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MAX4987AEETA+TG05 has the following pin configuration:

  1. GND: Ground
  2. EN: Enable Pin
  3. FB: Feedback Pin
  4. VCC: Power Supply Input
  5. LX: Switch Node
  6. PGND: Power Ground
  7. SS/TRK: Soft-Start/Tracking Pin
  8. COMP: Compensation Pin

Functional Features

  • High efficiency power supply controller
  • Wide input voltage range for versatile applications
  • Low quiescent current for reduced power consumption
  • Adjustable output voltage for flexibility
  • Overcurrent protection for enhanced safety
  • Soft-start and tracking capability for smooth operation

Advantages and Disadvantages

Advantages

  • High efficiency leads to energy savings
  • Wide input voltage range allows compatibility with various power sources
  • Low quiescent current reduces power consumption during standby
  • Adjustable output voltage provides flexibility in different applications
  • Overcurrent protection ensures safe operation
  • Soft-start and tracking features enable smooth power-up sequences

Disadvantages

  • Limited maximum output voltage of 55V
  • Relatively low switching frequency compared to some alternatives

Working Principles

The MAX4987AEETA+TG05 is a power supply controller that regulates the output voltage based on the feedback received from the FB pin. It operates by adjusting the duty cycle of the internal switch, controlled by the EN pin, to maintain the desired output voltage. The soft-start feature gradually ramps up the output voltage during startup, while the tracking capability ensures synchronized operation with other power supplies.

Detailed Application Field Plans

The MAX4987AEETA+TG05 is suitable for various applications, including:

  1. Industrial Power Supplies: Provides efficient and reliable power management in industrial equipment.
  2. Automotive Electronics: Enables precise voltage regulation in automotive systems.
  3. Telecommunications: Ensures stable power delivery in telecom infrastructure.
  4. Renewable Energy Systems: Facilitates efficient power conversion in solar or wind energy applications.
  5. Consumer Electronics: Supports power management in devices such as laptops, TVs, and audio systems.

Detailed and Complete Alternative Models

  1. LM5118: Wide input voltage range, high efficiency, adjustable output voltage.
  2. LT8610: High switching frequency, wide input voltage range, synchronous rectification.
  3. TPS54332: Low quiescent current, adjustable output voltage, overcurrent protection.

These alternative models offer similar functionality and can be considered as substitutes for the MAX4987AEETA+TG05 in specific applications.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von MAX4987AEETA+TG05 in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of MAX4987AEETA+TG05 in technical solutions:

  1. Q: What is the MAX4987AEETA+TG05? A: The MAX4987AEETA+TG05 is a high-speed, low-power, single-supply, current-limited switch with reverse-current blocking.

  2. Q: What is the maximum input voltage supported by MAX4987AEETA+TG05? A: The MAX4987AEETA+TG05 can support input voltages up to 28V.

  3. Q: How much current can the MAX4987AEETA+TG05 handle? A: The MAX4987AEETA+TG05 can handle a maximum continuous current of 500mA.

  4. Q: Can I use the MAX4987AEETA+TG05 for bidirectional current flow? A: No, the MAX4987AEETA+TG05 is designed for unidirectional current flow only.

  5. Q: Does the MAX4987AEETA+TG05 have built-in overcurrent protection? A: Yes, the MAX4987AEETA+TG05 has built-in overcurrent protection to prevent damage to the device.

  6. Q: What is the typical on-resistance of the MAX4987AEETA+TG05? A: The typical on-resistance of the MAX4987AEETA+TG05 is around 0.25 ohms.

  7. Q: Can I use the MAX4987AEETA+TG05 in automotive applications? A: Yes, the MAX4987AEETA+TG05 is suitable for automotive applications as it meets the necessary requirements.

  8. Q: Does the MAX4987AEETA+TG05 require an external power supply? A: No, the MAX4987AEETA+TG05 is powered directly from the input voltage.

  9. Q: Can I use the MAX4987AEETA+TG05 in high-speed switching applications? A: Yes, the MAX4987AEETA+TG05 is designed for high-speed switching with a typical propagation delay of 10ns.

  10. Q: Is the MAX4987AEETA+TG05 available in a surface-mount package? A: Yes, the MAX4987AEETA+TG05 is available in a surface-mount package for easy integration into PCB designs.

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