MAX20078

PRODUCTION

Synchronous Buck, High-Brightness LED Controller

Industry's First Automotive Buck Controller with Ultra-Fast Response and Pseudo Fixed-Frequency Regulation

Data Sheet (Rev. 5) Product Selection Table
Part Models
12
1ku List Price
Starting From $2.40
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Part Details

  • Automotive Ready: AEC-Q100 Qualified
  • Wide Input Voltage Range: 4.5V to 65V
  • Easy to Design
    • No Compensation Components
    • Programmable Switching Frequency
  • Wide Dimming Ratio Allows High Contrast Ratio
    • Analog Dimming
    • PWM Dimming
  • Suitable for Matrix Lighting
    • Maintains Current Regulation While Shorting/Opening Individual LEDs in the String
    • Ultra-Fast Response Control Loop Prevents Overshoots and Undershoots
  • Fault Detection and Protection
    • Overvoltage Protection
    • Open and Short Detection
    • Thermal Shutdown
    • Inductor Current Monitor
  • Low-Power Shutdown Mode
MAX20078
Synchronous Buck, High-Brightness LED Controller
MAX20078: Simplified Schematic
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

Technical Articles 2

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Evaluation Kits

MAX20078EVKIT

Evaluation Kit for the MAX20078

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Features and Benefits

  • 4.5V to 65V Input Voltage
  • Drives 1 to 16 LEDs
  • 0A to 2A LED Current
  • Demonstrates UVLO, Output Short Protection, and Overload
  • Demonstrates Current-Limit and Thermal-Shutdown Features
  • Proven PCB Layout and Thermal Design
  • Fully Assembled and Tested

Product Details

The MAX20078 evaluation kit (EV kit) provides a proven design to evaluate the MAX20078 synchronous buck controller for high-power, high-brightness (HB) LED drivers. The EV kit is set up as a buck LED driver and operates from a 4.5V to 65V DC supply voltage. The EV kit is configured to deliver up to 2A to one string of LEDs. The total voltage of the string can vary from 3V to 55V. The anode of the LED string should be connected to the LED+ terminal and the cathode of the LED string connected to PGND.

Applications

  • Automotive Front Lights
  • Automotive Matrix Lights
  • Constant-Current Regulators
  • Head-Up Displays
MAX20078EVKIT
Evaluation Kit for the MAX20078

Latest Discussions

1 Years Ago
RE: How to disable the output of MAX20078？
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