Monolithic Power Systems Inc.
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MP3391EY-LF-Z
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MP3391EY-LF-Z

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: LED Driver
  • Characteristics: High efficiency, compact size, wide input voltage range
  • Package: QFN (Quad Flat No-leads)
  • Essence: Power management IC for driving LEDs
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 4.5V to 40V
  • Output Current Range: Up to 1.5A
  • Switching Frequency: 1MHz
  • Dimming Control: Analog/PWM
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MP3391EY-LF-Z has a total of 16 pins. The pin configuration is as follows:

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

Functional Features

  • High efficiency conversion
  • Wide input voltage range allows for versatile applications
  • Over-temperature protection
  • Over-current protection
  • Short-circuit protection
  • Soft-start function for smooth operation
  • Adjustable dimming control for brightness adjustment

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Compact size enables space-saving designs - Wide input voltage range allows for flexibility in various applications - Comprehensive protection features ensure system reliability - Adjustable dimming control provides brightness customization

Disadvantages: - Limited output current range may not be suitable for high-power LED applications - Requires external components for operation, increasing overall system complexity

Working Principles

The MP3391EY-LF-Z is a power management IC specifically designed for driving LEDs. It operates by converting the input voltage to a regulated output voltage suitable for powering LEDs. The IC utilizes a high-frequency switching regulator to achieve high efficiency and compact size. It incorporates various protection features to ensure safe operation and prolong LED lifespan.

Detailed Application Field Plans

The MP3391EY-LF-Z is widely used in various lighting applications, including but not limited to:

  1. LED light bulbs
  2. LED strips
  3. Automotive lighting
  4. Industrial lighting
  5. Architectural lighting
  6. Display backlighting
  7. Signage lighting

Detailed and Complete Alternative Models

  1. MP3391EY-LF-Z (current model)
  2. MP3392EY-LF-Z (higher output current version)
  3. MP3393EY-LF-Z (lower output current version)
  4. MP3394EY-LF-Z (additional protection features)

These alternative models offer different specifications and features to cater to specific application requirements.

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技術ソリューションにおける MP3391EY-LF-Z 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 MP3391EY-LF-Z in technical solutions:

Q1: What is MP3391EY-LF-Z? A1: MP3391EY-LF-Z is a specific model of LED driver IC (integrated circuit) designed for driving LED strings in various lighting applications.

Q2: What is the input voltage range supported by MP3391EY-LF-Z? A2: MP3391EY-LF-Z supports an input voltage range from 4.5V to 26V, making it suitable for a wide range of power supply configurations.

Q3: How many LED strings can be driven by MP3391EY-LF-Z? A3: MP3391EY-LF-Z can drive up to 6 LED strings, with each string having a maximum current of 100mA.

Q4: Can MP3391EY-LF-Z dim the LED brightness? A4: Yes, MP3391EY-LF-Z supports PWM (Pulse Width Modulation) dimming, allowing precise control of LED brightness levels.

Q5: Is MP3391EY-LF-Z compatible with both analog and digital dimming methods? A5: No, MP3391EY-LF-Z only supports analog dimming. It does not have built-in support for digital dimming protocols like I2C or SPI.

Q6: What is the typical efficiency of MP3391EY-LF-Z? A6: MP3391EY-LF-Z has a typical efficiency of around 90%, ensuring efficient power conversion and minimizing energy losses.

Q7: Does MP3391EY-LF-Z have any built-in protection features? A7: Yes, MP3391EY-LF-Z includes various protection features such as over-temperature protection, over-voltage protection, and short-circuit protection.

Q8: Can MP3391EY-LF-Z be used in automotive lighting applications? A8: Yes, MP3391EY-LF-Z is suitable for automotive lighting applications as it can operate within the required temperature range and has automotive-grade reliability.

Q9: What is the maximum operating temperature of MP3391EY-LF-Z? A9: The maximum operating temperature of MP3391EY-LF-Z is typically around 125°C, ensuring stable operation even in high-temperature environments.

Q10: Is MP3391EY-LF-Z RoHS compliant? A10: Yes, MP3391EY-LF-Z is RoHS (Restriction of Hazardous Substances) compliant, meeting the environmental standards set by regulatory authorities.

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