The MAX20092 evaluation system is a matrix LED dimmer system featuring the MAX20092 12-switch matrix LED dimmer IC. The system includes two MAX20092 ICs that each control a string of 12 series LEDs. Each LED can be controlled individually or grouped. The user can turn the LED on and off with or without fading. The two strings of 12 series LEDs are driven by the MAX20097, a dual buck controller IC, with a current of 0.5A. The power supply for the dual buck controller is generated from the MAX16990, boost controller IC that is powered by an external 12V supply. For the detailed operation of the MAX20092 IC, refer to the MAX20092 IC data sheet.
Operating Input Supply Range: 9V to 16V
Individual and Group Control of LEDs for Turn On, Turn Off, and PWM Dimming
Dimming With and Without Fade
Phase Shift Capability
LED Slew Rate Control for Turn On/Off
Open and Short Indication for Each Individual LED
Adjustable for Short Thresholds
Open Trace Detection
Adjustable for PWM Dimming Frequency
Thermal Warning and Thermal Shutdown Indication
Status Reporting on SPI Errors
Individual, Global, or Cluster Write Modes Through the SPI Interface
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