Analog Devices / Maxim Integrated MAX25561 Evaluation Kit

Analog Devices / Maxim Integrated MAX25561 Evaluation Kit is designed to evaluate MAX25560 6-channel LED backlight drivers with an integrated current-mode boost controller. This kit supports ASIL B compliance for automotive applications. These LED drivers operate at 400kHz to 2.2MHz switching frequency range and incorporate spread spectrum. The MAX25561 EV kit operates from a DC supply voltage between 7V (4.5V if the LED current per string is set to 150mA or less) and 36V. This evaluation kit can only be configured to operate in I2C mode. The MAX25561 EV kit demonstrates phase-shifted and Pulse-Width Modulation (PWM) dimming. This evaluation kit offers a range of features that enhance its usability and performance in LED driving applications.

Features

  • Demonstrates the robustness of MAX25561 and MAX25560
  • 7V (4.5V if LED current per string is set to 150mA or less) to 36V input operating range (up to 42V load dump)
  • Powers HB LEDs (up to six strings) for medium-to-large-sized LCD displays in automotive and display backlight applications
  • 400kHz to 2.2MHz resistor-programmable switching frequency with spread-spectrum option
  • Phase-shift dimming option
  • Demonstrates cycle-by-cycle current-limit and thermal-shutdown features
  • Demonstrates a wide dimming ratio
  • Demonstrates hybrid dimming for better EMI and acoustic performance, and a high dimming ratio
  • Demonstrates fade in/out for smooth brightness transition
  • Designed to show thermal foldback function
  • I2C programmability
  • Dedicated GUI
  • Proven PCB and thermal design
  • Fully assembled and tested

Required Equipment

  • MAX25561 EV kit
  • 7V (4.5V if the LED current per string is set to 150mA or less) to 36V, 10A DC power supply
  • One Digital Voltmeter (DVM)
  • Six series-connected HB LED strings (8 LEDs per string maximum) rated to no less than 225mA
  • Current probe to measure the HB LED current
  • Standard-A to Micro-B USB cable
  • Windows-compatible PC with a spare USB port
Yayınlandı: 2025-09-17 | Güncellenmiş: 2025-10-13