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Применения > > Evaluation Kit for the MAX8901A and MAX8901B (MAX8901EVKIT)

Evaluation Kit for the MAX8901A and MAX8901B (MAX8901EVKIT) (MAX8901EVKIT)

The MAX8901 evaluation kit (EV kit) is a fully assembled and tested printed-circuit board (PCB) that includes two circuits demonstrating the MAX8901A and the MAX8901B white LED (WLED) step-up DC-DC converters. Both circuits share a central WLED string and each circuit is selected by on-board jumper positions. The MAX8901B circuit includes a pushbutton circuit to provide single-wire serial-pulse dimming control for the MAX8901B IC. To evaluate the MAX8901A dimming control, an externally applied PWM signal is required. Both evaluation circuits operate from an input voltage of 2.6V to 5.5V and deliver up to 25mA (MAX8901A) or 24.75mA (MAX8901B) of regulated output current to drive from 2 to 6 series-connected WLEDs.


  • Two Fully Assembled Circuits with Shared WLEDs
  • Drives from 2 to 6 WLEDs
  • Direct PWM (MAX8901A) or Single-Wire Serial Dimming Control (MAX8901B)
  • On-Board Pushbutton for Single-Wire Serial Dimming Control (MAX8901B)
  • Constant-Current Regulation for Uniform WLED Illumination
  • High 87% WLED Efficiency
  • 2.6V to 5.5V Input Range
  • Input Overvoltage Lockout Protection (6.2V min)
  • 25V (typ) Maximum Output with Overvoltage Protection
  • Additional Input (VEXT_) for Powering WLEDs from a Separate Supply
  • Small, Low-Profile Components
  • Lead-Free and RoHS-Compliant
  • Fully Assembled and Tested


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