16 CHANNELS LED DRIVER EVALUATION BOARD GUIDE DESCRIPTION RECOMMENDED EQUIPMENT The IS31FL3216A is a fun light LED controller with an 5.0V, 2A power supply audio modulation mode. It can store data of 8 frames Audio source( i.e. MP3 player, Notebook PC, etc) with internal RAM to play small animations 8 speaker automatically. IS31FL3216A can sample the input signal to modulate ABSOLUTE MAXIMUM RATINGS the intensity of LEDs, or control 8 frames playing by internal ADC block. 5.5V power supply 8 speaker The LED current of each channel can be set in 256 steps by adjusting the PWM duty cycle through an I2C Caution: Do not exceed the conditions listed above, otherwise the board will be damaged. interface. 8 channels can be used as GPIO ports. FEATURES PROCEDURE 2.7V to 5.5V supply The IS31FL3216A evaluation board is fully assembled I2C interface, automatic address increment and tested. Follow the steps listed below to verify board function operation. Internal RAM Caution: Do not turn on the power supply until all connections Modulate LED brightness with 256 steps PWM are completed. PWM frequency up to 26kHz 1) If using external DC power supply connect the Each channel can be controlled independently ground terminal of the power supply to the Auto Frame Play Mode with 8 frames evaluation board s GND pin and the positive 8 frames memory for animations terminal to the VCC pin. The evaluation board can Audio Frame Mode with 8 frames also be powered via the Micro USB connector. 2) Connect an 8 speaker to the SPK connector. 8 of 16 outputs not used as LED drivers can be used as GPIO ports 3) Connect the audio source to the AUDIO IN connector. 8 levels of maximum intensity control 4) Short J1 to close external control. QFN-28 (4mm 4mm) package 5) Turn on the power supply/Plug in the Micro USB and pay attention to the supply current. If the QUICK START current exceeds 1A, please check for circuit fault. 6) Turn on the audio signal. 7) Enter the desired mode of display by toggling the MODE button (K1). Figure 1: Photo of IS31FL3216A Evaluation Board ORDERING INFORMATION Part No. Temperature Range Package IS31FL3216A-QFLS3-EB -40C to +105C (Industrial) QFN-28, Lead-free Table 1: Ordering Information For pricing, delivery, and ordering information, please contacts Lumissils analog marketing team at analog Lumissil.com or (408) 969-6600. Lumissil Microsystems www.lumissil.com 1 Rev. B, 05/08/2021 16 CHANNELS LED DRIVER EVALUATION BOARD GUIDE EVALUATION BOARD OPERATION The evaluation board is controlled by LPC922. IS31FL3216A evaluation board has 9 modes: 1) Audio Mode: Blue LEDs light bar in board flashes to the sides with the strength of the music. The stronger the music, the closer the LED bar is to sides. 2) Audio Mode: Blue LEDs light bar in board flashes from left to right with the strength of the music. The stronger the music, the brighter the LED. 3) Audio Mode: Blue LEDs light bar in board flashes from right to left with the strength of the music. The stronger the music, the brighter the LED. 4) Audio Mode: RGBs light bar in board with music and weak flicker and switch colors. (The color changes to B-G-R). 5) Audio Mode (AGC OFF): RGBs light bar in board flashes from left to right with the strength of the music. Music the stronger the color bar the longer. Switch colors automatically every six to seven seconds. 6) Audio Mode (AGC ON, AGS 6dB): RGBs light bar in board flashes from left to right with the strength of the music. Music the stronger the color bar the Figure 2: Photo of Arduino UNO connected to Evaluation longer. Switch colors automatically every six to Board seven seconds. The steps listed below are an example using the 7) Auto frame play Mode: Blue LEDs light bar in Arduino for external control. board move form right to left with off-tail effect. 8) Auto frame play Mode: The blue LED light below The Arduino hardware consists of an Atmel the demo board moves from center to side. microcontroller with a bootloader allowing quick 9) Button Mode: OUT9~OUT16 use as input port, firmware updates. First download the latest Arduino OUT~OUT drives 8 LEDs as output. The default 8 Integrated Development Environment IDE (1.6.12 or LEDs are all bright. Press the corresponding greater) from www.arduino.cc/en/Main/Software. Also button on the left (OUT9~OUT16 corresponding download the Wire.h library from pin grounding). Then the corresponding LED lights www.arduino.cc/en/reference/wire and verify that will go out. pgmspace.h is in the directory program Files(x86)/Arduino/hardware/tools/avr/avr/include/avr Note: IS31FL3216A solely controls the FxLED function on the evaluation board. /. Then download the latest IS31FL3216A test firmware (sketch) from the Lumissil website