Diodes Incorporated
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AL5802-7
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AL5802-7

Product Overview

Category: LED Driver
Use: Driving and controlling LEDs
Characteristics: High efficiency, compact size, wide input voltage range
Package: SOP-8
Essence: Efficient LED driver for various applications
Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Input Voltage Range: 4.5V to 60V
  • Output Current: Up to 1A
  • Switching Frequency: 1MHz
  • Operating Temperature Range: -40°C to 125°C
  • Dimming Control: Analog/PWM

Detailed Pin Configuration

  1. VIN (Pin 1) - Input Voltage
  2. GND (Pin 2) - Ground
  3. VOUT (Pin 3) - Output Voltage
  4. FB (Pin 4) - Feedback
  5. EN (Pin 5) - Enable
  6. DIM (Pin 6) - Dimming Control
  7. NC (Pin 7) - No Connection
  8. SW (Pin 8) - Switch Node

Functional Features

  • Wide input voltage range for versatile applications
  • High efficiency for energy savings
  • Compact size for space-constrained designs
  • Dimming control for brightness adjustment
  • Over-temperature and over-current protection

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Dimming control feature - Compact size

Disadvantages: - Limited output current compared to some other models - Requires external components for certain functionalities

Working Principles

The AL5802-7 is a buck LED driver that operates by efficiently regulating the current flow through the connected LEDs. It utilizes a high-frequency switching regulator to convert the input voltage to a lower output voltage suitable for driving the LEDs. The dimming control allows for adjusting the brightness of the LEDs based on the application requirements.

Detailed Application Field Plans

The AL5802-7 is well-suited for various LED lighting applications, including: - Automotive lighting - Industrial lighting - Architectural lighting - Signage and display lighting - General illumination

Detailed and Complete Alternative Models

  1. AL8862
    • Higher output current capability
    • Similar input voltage range
    • Different package (MSOP-8)
  2. AL9910
    • Higher input voltage range
    • Programmable output current
    • Different dimming control options

This concludes the detailed entry for the AL5802-7 LED driver, covering its product overview, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

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  1. What is the AL5802-7?

    • The AL5802-7 is a high precision, constant current LED driver designed for automotive lighting applications.

  2. What is the input voltage range of AL5802-7?

    • The input voltage range of AL5802-7 is 4.5V to 60V, making it suitable for a wide range of automotive and industrial applications.

  3. What is the maximum output current of AL5802-7?

    • The AL5802-7 can deliver a maximum output current of 1A, providing sufficient power for driving LEDs in various lighting solutions.

  4. Is the AL5802-7 suitable for dimming applications?

    • Yes, the AL5802-7 supports PWM dimming, allowing for precise control of LED brightness in lighting systems.

  5. Does the AL5802-7 include over-temperature protection?

    • Yes, the AL5802-7 features built-in over-temperature protection to ensure safe operation under varying environmental conditions.

  6. What type of thermal management does the AL5802-7 require?

    • The AL5802-7 requires proper PCB layout and thermal management to dissipate heat effectively, especially when driving high-power LEDs.

  7. Can the AL5802-7 be used in automotive exterior lighting applications?

    • Yes, the AL5802-7 is designed to meet the stringent requirements for automotive exterior lighting, including headlamps, tail lamps, and daytime running lights.

  8. What are the key advantages of using the AL5802-7 in technical solutions?

    • The AL5802-7 offers high efficiency, accurate current regulation, and robust protection features, making it ideal for demanding lighting applications.

  9. Does the AL5802-7 support open or short-circuit protection?

    • Yes, the AL5802-7 includes open and short-circuit protection to safeguard the LED load and the driver itself from potential faults.

  10. Are there any application notes or reference designs available for the AL5802-7?

    • Yes, Allegro MicroSystems provides comprehensive application notes and reference designs to assist engineers in implementing the AL5802-7 in their technical solutions.