Texas Instruments
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LP8860CQVFPRQ1
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LP8860CQVFPRQ1

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: LED Driver
  • Characteristics: High efficiency, compact size, automotive-grade
  • Package: VQFN-32
  • Essence: Efficient LED driver for automotive lighting applications
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 40V
  • Output Current Range: Up to 60mA per channel
  • Number of Channels: 10
  • Dimming Control: PWM or analog
  • Operating Temperature Range: -40°C to +125°C
  • Automotive Grade: AEC-Q100 qualified

Detailed Pin Configuration

The LP8860CQVFPRQ1 has a VQFN-32 package with the following pin configuration:

  1. EN (Enable)
  2. VIN (Input voltage)
  3. GND (Ground)
  4. VOUT (Output voltage)
  5. ISET (Current set)
  6. DIM (Dimming control)
  7. NC (No connection)
  8. NC (No connection)
  9. NC (No connection)
  10. NC (No connection)
  11. NC (No connection)
  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)
  21. NC (No connection)
  22. NC (No connection)
  23. NC (No connection)
  24. NC (No connection)
  25. NC (No connection)
  26. NC (No connection)
  27. NC (No connection)
  28. NC (No connection)
  29. NC (No connection)
  30. NC (No connection)
  31. NC (No connection)
  32. NC (No connection)

Functional Features

  • High efficiency LED driver with integrated power MOSFETs
  • Wide input voltage range for automotive applications
  • Supports both PWM and analog dimming control
  • Overvoltage and overtemperature protection
  • Fault detection and reporting
  • Integrated thermal shutdown

Advantages and Disadvantages

Advantages

  • High efficiency results in lower power consumption
  • Compact size allows for space-saving designs
  • Automotive-grade qualification ensures reliability in harsh environments
  • Flexible dimming options for precise control

Disadvantages

  • Limited output current per channel (up to 60mA)
  • No built-in short-circuit protection

Working Principles

The LP8860CQVFPRQ1 is an efficient LED driver designed for automotive lighting applications. It operates by converting the input voltage into a regulated output voltage suitable for driving LEDs. The integrated power MOSFETs ensure high efficiency and minimize power losses. The device supports both PWM and analog dimming control, allowing for versatile brightness adjustment. It also incorporates various protection features such as overvoltage and overtemperature protection, fault detection, and thermal shutdown.

Detailed Application Field Plans

The LP8860CQVFPRQ1 is widely used in automotive lighting applications, including:

  1. Headlights
  2. Taillights
  3. Daytime running lights
  4. Interior lighting
  5. Dashboard illumination
  6. Ambient lighting

Its compact size and automotive-grade qualification make it suitable for use in various vehicles, ranging from passenger cars to commercial trucks.

Detailed and Complete Alternative Models

  1. LP8860-Q1: Similar LED driver with a different package (VQFN-24)
  2. LP8861CQVFPRQ1: LED driver with additional features like fault detection and reporting
  3. LP8863CQVFPRQ1: LED driver with higher output current per channel (up to 100mA)
  4. LP8865CQVFPRQ1: LED driver with integrated short-circuit protection

These alternative models offer different specifications and features, allowing designers to choose the most suitable option for their specific application requirements.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням LP8860CQVFPRQ1 у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of LP8860CQVFPRQ1 in technical solutions:

1. What is LP8860CQVFPRQ1? LP8860CQVFPRQ1 is a high-efficiency, automotive-grade LED driver designed for LCD backlighting applications.

2. What is the input voltage range of LP8860CQVFPRQ1? The input voltage range of LP8860CQVFPRQ1 is from 4.5V to 65V.

3. How many channels does LP8860CQVFPRQ1 support? LP8860CQVFPRQ1 supports up to 10 channels, making it suitable for driving multiple LEDs in LCD backlighting.

4. What is the maximum current per channel that LP8860CQVFPRQ1 can handle? LP8860CQVFPRQ1 can handle a maximum current of 120mA per channel.

5. Does LP8860CQVFPRQ1 have built-in PWM dimming control? Yes, LP8860CQVFPRQ1 has built-in PWM dimming control, allowing precise brightness adjustment.

6. Can LP8860CQVFPRQ1 support both analog and digital dimming? Yes, LP8860CQVFPRQ1 supports both analog and digital dimming methods, providing flexibility in controlling the LED brightness.

7. Is LP8860CQVFPRQ1 compatible with automotive applications? Yes, LP8860CQVFPRQ1 is specifically designed for automotive applications and meets the AEC-Q100 Grade 1 qualification.

8. What is the thermal shutdown feature of LP8860CQVFPRQ1? LP8860CQVFPRQ1 has a thermal shutdown feature that protects the device from overheating by turning off the LED current when the junction temperature exceeds the specified limit.

9. Can LP8860CQVFPRQ1 operate in a wide temperature range? Yes, LP8860CQVFPRQ1 can operate in a wide temperature range of -40°C to +105°C, making it suitable for automotive and industrial applications.

10. Does LP8860CQVFPRQ1 have any fault detection features? Yes, LP8860CQVFPRQ1 has various fault detection features such as open/short LED detection, overvoltage protection, and undervoltage lockout to ensure reliable operation.

Please note that these answers are general and may vary depending on the specific application and implementation of LP8860CQVFPRQ1. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.