KTD2064 2 24-Channel RGB LED Driver with I C Control Features Brief Description The KTD2064 is a fully programmable current regulator Drives up to 24 LEDs (8 RGBs) for up to 8 RGB LED modules (24 LEDs total). The Multiplexed LED Current Driver Outputs device is ideally powered from a supply rail in the 3V to Only 8 PCB Traces to the LEDs 5V nominal range. Two 4-wire buses are multiplexed 23kHz MUX Frequency Prevents Audio Noise to reduce the pin-count and PCB traces to the LEDs. 14 Million Colors LED Current: 125A to 24mA in 125A Steps 2 The I C control interface is used to set the LED color Night-Mode: 8A to 1.5mA in 8A Steps palette and then dynamically select the on/off status 5% Max. Current Accuracy & Matching and color of each RGB module. For applications 24 Independent Exponential Fade-Engines requiring more RGBs, see the KTD2061/58/59/60. Ultra-Smooth 3072-Step Fade Resolution 24 independent fade-up/down engines are integrated 3-bit Programmable Fade Rate for independent ramping of each LEDs current during Dramatically Reduces Software Complexity on/off, brightness, and color transitions without 1 Patented BrightExtend Technology software burden. The exponential current ramps Maintains Color-Accuracy and PSRR for Battery- 2 provide visually pleasing fades with eight I C Powered Applications with Low Vin programmable fade-rate settings. 3072-step fade Proprietary CoolExtend Technology resolution ensures ultra-smooth visual effects. 2-bit Programmable Max. Die-Temp Regulation BrightExtend optionally reduces dropout when the 0.4A Automatic Shutdown (Standby) Current 2 input voltage is too low for the forward voltage of the 1MHz I C Interface with Multiple Slave Addresses LEDs, enabling battery-powered applications. 2.5V to 5.5V Operating Supply Voltage Range Programmable CoolExtend prevents excessive heat -40C to 85C Operating Temperature Range by regulating die temperature when the input voltage, 20 pin UQFN 3x3mm (0.4mm pitch) current settings, and/or ambient temperature are high. RoHS and Green Compliant The KTD2064 is packaged in RoHS and Green Applications compliant 3mm x 3mm, ultra-thin, 20-pin UQFN package. AI Smart Speakers, Bluetooth / WiFi Loudspeakers Automotive Panel, Accent and Mood Lighting IoT, Gaming PC/Keyboards/Controllers/VR, Robots Typical Application 1. US Patent 8,482,216 B1 August 2021 - Revision 04c Page 1 Kinetic Technologies Confidential KTD2064 XXYWZ aabbccc KTD2064 Pin Descriptions Pin Name Function Voltage Input to the LEDs connect a 10F capacitor from VIN to the PCB ground plane 1, 2 VIN using multiple vias. 3 VCC Voltage Supply Input for the IC connect VCC to VIN and its 10F capacitor. 2 4 SCL I C Serial Interface Clock 2 5 SDA I C Serial Interface Data 6 LEDA1 LED connection for bus A, wire 1. 7 LEDA2 LED connection for bus A, wire 2. 8, 13, 18 GND Ground connect to the PCB ground plane using multiple vias. 9 LEDA3 LED connection for bus A, wire 3. 10 LEDA4 LED connection for bus A, wire 4. 11 LEDB1 LED connection for bus B, wire 1. 12 LEDB2 LED connection for bus B, wire 2. 14 LEDB3 LED connection for bus B, wire 3. 15 LEDB4 LED connection for bus B, wire 4. 16, 17, 19, 20 N.C. No connect connect to ground or leave floating. -- EP Exposed Paddle -- connect to PCB ground plane using multiple vias directly under the IC. UQFN33-20 TOP VIEW TOP VIEW 20 19 18 17 16 VIN 1 15 LEDB4 VIN 2 14 LEDB3 Exposed VCC 3 13 GND Paddle SCL 4 12 LEDB2 SDA 5 11 LEDB1 6 7 8 9 10 20-Pin 3mm x 3mm x 0.52mm UQFN Package, 0.4mm pitch Top Mark XX = Device ID Code, YW = Fab Date Code, Z = Serial Number aabbccc = Assembly Date Code August 2021 - Revision 04c Page 2 Kinetic Technologies Confidential LEDA1 N.C LEDA2 N.C. GND GND LEDA3 N.C. LEDA4 N.C.