Monolithic Power Systems Inc.
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MP3391EY-LF
צפה בפרטים DataSheets

MP3391EY-LF

Product Overview

Category: Integrated Circuit (IC)

Use: LED Driver

Characteristics: - High efficiency - Wide input voltage range - Dimming control - Over-temperature protection - Short-circuit protection

Package: QFN-24

Essence: MP3391EY-LF is a high-efficiency LED driver IC designed for various lighting applications.

Packaging/Quantity: The MP3391EY-LF is available in a QFN-24 package. The quantity per reel is typically 3000 pieces.

Specifications

  • Input Voltage Range: 4.5V to 40V
  • Output Current Range: Up to 1.5A
  • Switching Frequency: Adjustable up to 2MHz
  • Dimming Control: Analog/PWM
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MP3391EY-LF has a total of 24 pins. Here is the detailed pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. EN: Enable pin
  4. DIM: Dimming control input
  5. FB: Feedback pin
  6. CS: Current sense pin
  7. SW: Switch node
  8. PGND: Power ground
  9. VCC: Supply voltage
  10. VCC: Supply voltage
  11. VCC: Supply voltage
  12. VCC: Supply voltage
  13. VCC: Supply voltage
  14. VCC: Supply voltage
  15. VCC: Supply voltage
  16. VCC: Supply voltage
  17. VCC: Supply voltage
  18. VCC: Supply voltage
  19. VCC: Supply voltage
  20. VCC: Supply voltage
  21. VCC: Supply voltage
  22. VCC: Supply voltage
  23. VCC: Supply voltage
  24. VCC: Supply voltage

Functional Features

  • High efficiency conversion
  • Wide input voltage range for versatile applications
  • Dimming control for brightness adjustment
  • Over-temperature protection to prevent damage
  • Short-circuit protection for enhanced safety

Advantages and Disadvantages

Advantages: - High efficiency results in energy savings - Wide input voltage range allows for flexible usage - Dimming control enables customization of lighting levels - Over-temperature and short-circuit protection enhance reliability and safety

Disadvantages: - None reported

Working Principles

The MP3391EY-LF is a switching regulator that converts the input voltage to a constant current output for driving LEDs. It utilizes a high-frequency switching technique to efficiently regulate the LED current. The dimming control feature adjusts the duty cycle of the switching signal, thereby controlling the brightness of the LEDs.

Detailed Application Field Plans

The MP3391EY-LF is suitable for various lighting applications, including but not limited to: - LED bulbs - LED strips - Downlights - Automotive lighting - Industrial lighting

Detailed and Complete Alternative Models

Here are some alternative models that can be considered as alternatives to the MP3391EY-LF: - MP3394EY-LF - MP3392EY-LF - MP3393EY-LF - MP3395EY-LF

These models offer similar functionality and characteristics, providing options for different design requirements.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של MP3391EY-LF בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of MP3391EY-LF in technical solutions:

Q1: What is MP3391EY-LF? A1: MP3391EY-LF is a specific model of LED driver IC (integrated circuit) designed for driving LED backlighting in LCD displays.

Q2: What is the input voltage range of MP3391EY-LF? A2: The input voltage range of MP3391EY-LF is typically between 4.5V and 26V.

Q3: What is the maximum output current of MP3391EY-LF? A3: The maximum output current of MP3391EY-LF is typically 1.5A.

Q4: Can MP3391EY-LF be used for dimming LED lights? A4: Yes, MP3391EY-LF supports PWM (Pulse Width Modulation) dimming control for LED lights.

Q5: Is MP3391EY-LF suitable for automotive applications? A5: Yes, MP3391EY-LF is designed to meet the requirements of automotive applications, including AEC-Q100 qualification.

Q6: Does MP3391EY-LF have built-in protection features? A6: Yes, MP3391EY-LF includes various protection features such as over-voltage protection, over-current protection, and thermal shutdown.

Q7: Can MP3391EY-LF drive multiple LED strings simultaneously? A7: Yes, MP3391EY-LF can drive up to 8 LED strings in parallel.

Q8: What is the typical efficiency of MP3391EY-LF? A8: The typical efficiency of MP3391EY-LF is around 90%.

Q9: Does MP3391EY-LF require external components for operation? A9: Yes, MP3391EY-LF requires a few external components such as inductors, capacitors, and resistors for proper operation.

Q10: Is MP3391EY-LF RoHS compliant? A10: Yes, MP3391EY-LF is RoHS (Restriction of Hazardous Substances) compliant, ensuring it meets environmental regulations.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.