Click here for production status of specific part numbers. Evaluates: MAX20092 MAX20092 Evaluation System General Description Quick Start The MAX20092 evaluation system is a matrix LED dim- Required Equipment mer system featuring the MAX20092 12-switch matrix MAX20092EVSYS (includes the MAX20092 EV kit, LED dimmer IC. The system includes two MAX20092 ICs MAX20092LED EV kit, MINIQUSB+ interface board, that each control a string of 12 series LEDs. Each LED and USB cable) can be controlled individually or grouped. The user can A PC with the MAX20092 GUI software uploaded turn the LED on and off with or without fading. The two strings of 12 series LEDs are driven by the MAX20097, 12V, 6A DC power supply a dual buck controller IC, with a current of 0.5A. The Two digital voltmeters power supply for the dual buck controller is generated A small flat-head screwdriver to turn the potentiometer from the MAX16990, boost controller IC that is powered wiper adjustment pin by an external 12V supply. For the detailed operation of the MAX20092 IC, refer to the MAX20092 IC data sheet. Power-Up Procedure Note: In the following sections, software-related items are Features identified by bolding. Text in bold refers to items directly Operating Input Supply Range: 9V to 16V from the EV kit software. Text in bold and underlined Individual and Group Control of LEDs for Turn On, refers to items from the Windows operating system. Turn Off, and PWM Dimming Visit www.maximintegrated/evkitsoftware to Dimming With and Without Fade download the latest version of the EV kit software, MAX20092EVKit.exe . Phase Shift Capability Install the EV kit software (GUI) on your computer LED Slew Rate Control for Turn On/Off by running the MAX20092EVKit.exe program. The Open and Short Indication for Each Individual LED MAX20092 evaluation kit software app is Adjustable for Short Thresholds installed together with the required MINIQUSB+ drivers. Open Trace Detection Verify jumper settings as in Table 1 for the Adjustable for PWM Dimming Frequency MAX20092 EV kit board. Thermal Warning and Thermal Shutdown Indication Connect the 12V power supply to the BATVIN and Status Reporting on SPI Errors GND terminals of the MAX20092 EV kit. Individual, Global, or Cluster Write Modes Through Connect a voltmeter across REFI1 and AGND test the SPI Interface points. Adjust the R23 potentiometer to set the Reporting of LED Binning Resistor (R ) voltage to 0.45V. This voltage on REFI1 sets the GRADE LED current on Channel 1 of the buck controller. Proven PCB Layout The equation to set LED current is: I = (V LED REFI1 Fully Assembled and Tested - 0.2V)/0.5 with 0.45V the current is set to 0.5A. Con- nect a voltmeter between REFI2 and AGND. Use the potentiometer R5 to set the voltage at REFI2 test MAX20092 EV Kit Files point. This sets the LED current on channel 2 of the FILE DESCRIPTION buck controller. MAX20092EVKit.exe Windows GUI Installer The equation to set LED current is: I = (V - LED REFI1 0.2V)/0.5 with 0.45V the current is set to 0.5A. Ordering Information appears at end of data sheet. 319-100257 Rev 0 9/18Evaluates: MAX20092 MAX20092 Evaluation System Caution: The setting of the LED current by the Connect the MINIQUSB+ board to J2 and J14 of the above procedure is important as the LEDs in the MAX20092 EV kit. LED board are recommended for 0.5A operation Connect the MINIQUSB+ board to the computer run- nominally. Do not connect the LED board before ning the software with the provided USB cable. this step. Reconnect the 12V power supply to the BATVIN and Disconnect the 12V power supply connected to BAT- GND terminals of the MAX20092 EV kit. VIN and GND terminals of the MAX20092 EV kit. Click on the MAX20092 EV kit GUI software icon Connect the MAX20092 LED EV kit board to the installed in the PC. MAX20092 EV kit using the female header on the Click the Software Sync Enable Button in the GUI to MAX200092 LED EV kit to the male connector in the enable the control of LEDs as shown in Figure 1. MAX20092 EV kit board. Ensure the jumpers on the LED board are connected as shown in Table 2. Figure 1. MAX20092 Evaluation Kit Software (GUI) Maxim Integrated 2 www.maximintegrated.com