Monolithic Power Systems Inc.
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MP3385GR-P
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MP3385GR-P

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: LED Driver
  • Characteristics: High efficiency, compact size, wide input voltage range
  • Package: QFN-20
  • Essence: Power management IC for driving LEDs
  • Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Output Current Range: Up to 1.5A
  • Switching Frequency: Adjustable up to 2MHz
  • Dimming Control: Analog/PWM
  • Protection Features: Over-temperature, over-voltage, short-circuit protection

Detailed Pin Configuration

The MP3385GR-P has a total of 20 pins. The pin configuration is as follows:

  1. VIN: Input voltage
  2. GND: Ground
  3. EN: Enable control
  4. FB: Feedback voltage
  5. CS: Current sense
  6. DIM: Dimming control
  7. VCC: Internal voltage supply
  8. SW: Switch node
  9. LX: Inductor connection
  10. PGND: Power ground
  11. AGND: Analog ground
  12. NC: No connection
  13. NC: No connection
  14. NC: No connection
  15. NC: No connection
  16. NC: No connection
  17. NC: No connection
  18. NC: No connection
  19. NC: No connection
  20. NC: No connection

Functional Features

  • High efficiency conversion for LED lighting applications
  • Wide input voltage range allows for versatile usage
  • Adjustable switching frequency for optimal performance
  • Dimming control options for brightness adjustment
  • Comprehensive protection features ensure safe operation

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Compact size allows for space-saving designs - Wide input voltage range accommodates various power sources - Dimming control enables flexible lighting options

Disadvantages: - Limited output current range may not be suitable for high-power LED applications - Analog/PWM dimming control may require additional external components

Working Principles

The MP3385GR-P is a power management IC specifically designed for driving LEDs. It operates by converting the input voltage into a regulated current source suitable for powering LEDs. The IC utilizes a switching regulator topology to achieve high efficiency and precise current control. The dimming control feature allows for adjusting the brightness of the LEDs using either analog or PWM signals.

Detailed Application Field Plans

The MP3385GR-P is widely used in various LED lighting applications, including but not limited to: - Indoor and outdoor lighting fixtures - Automotive lighting systems - Backlighting for LCD displays - Portable lighting devices - Signage and advertising displays

Detailed and Complete Alternative Models

  1. MP3386GR-P: Similar specifications and features as MP3385GR-P, but with higher output current capability.
  2. MP3384GR-P: Lower output current capability compared to MP3385GR-P, suitable for low-power LED applications.
  3. MP3399GR-P: Advanced LED driver IC with integrated color mixing capabilities and additional protection features.

These alternative models provide options based on specific requirements and can be considered as alternatives to the MP3385GR-P depending on the application needs.

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技術ソリューションにおける MP3385GR-P の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of MP3385GR-P in technical solutions:

  1. Q: What is the MP3385GR-P? A: The MP3385GR-P is a high-efficiency, step-down LED driver designed for driving up to 16 series-connected LEDs.

  2. Q: What is the input voltage range of the MP3385GR-P? A: The MP3385GR-P has an input voltage range of 4.5V to 28V.

  3. Q: How many LEDs can the MP3385GR-P drive? A: The MP3385GR-P can drive up to 16 series-connected LEDs.

  4. Q: What is the maximum output current of the MP3385GR-P? A: The MP3385GR-P can provide a maximum output current of 1.5A.

  5. Q: Can the MP3385GR-P dim the LEDs? A: Yes, the MP3385GR-P supports PWM dimming control.

  6. Q: Does the MP3385GR-P have over-temperature protection? A: Yes, the MP3385GR-P features over-temperature protection to prevent damage due to excessive heat.

  7. Q: Is the MP3385GR-P suitable for automotive applications? A: Yes, the MP3385GR-P is designed to meet the requirements of automotive applications.

  8. Q: What is the efficiency of the MP3385GR-P? A: The MP3385GR-P has a high efficiency of up to 95%.

  9. Q: Can the MP3385GR-P operate in a wide temperature range? A: Yes, the MP3385GR-P can operate in a temperature range of -40°C to +125°C.

  10. Q: What package does the MP3385GR-P come in? A: The MP3385GR-P is available in a compact 20-pin QFN package.

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