Kinetic technologies KTD2027 Constant Current RGB-White LED Driver with I2C Control User Guide
- October 30, 2023
- Kinetic Technologies
Table of Contents
Kinetic technologies KTD2027 Constant Current RGB-White LED Driver with
I2C Control
Product Information
The KTD2027 is a Constant Current RGB/White LED Driver with I2C Control and is designed to drive up to 4 high-power LEDs with a maximum output current of 1A per channel. The EVAL Kit includes a fully assembled PCB, MCP2221A Board – General Purpose USB to GPIO ADC I2C, Stemma QT / Qwiic Stemma QT / Qwiic JST SH 4-pin Cable – 100mm Long, and an anti-static bag. The kit also includes a Quick Start Guide with instructions for the evaluation board and links to the IC datasheet and the EVAL Kit Landing Page on the Kinetic Technologies website.
Product Usage Instructions:
- Ensure that the evaluation board green LED D3 is turned on, indicating that the board is powered from the computer. The onboard VIN supply voltage should be around 3.3V. No external power supply is required.
- Install and run the KTD202x GUI executable file software on the computer. Note that both KTD2026 and KTD2027 devices use the same KTD202x GUI software.
- Connect the MCP2221A board to the computer using a USB cable.
- Follow the instructions in the Quick Start Guide to communicate and program the KTD2027 device using the GUI software.
By following these usage instructions, users can effectively evaluate and program the KTD2027 Constant Current RGB/White LED Driver using the included EVAL Kit, without requiring any external power supply.
EVAL Kit Physical Contents
| Item # | Description | Quantity |
|---|---|---|
| 1 | KTD2027 EVAL Kit fully assembled PCB | 1 |
| 2 | MCP2221A Board – General Purpose USB to GPIO ADC I2C – Stemma QT / Qwiic | 1 |
| 3 | Stemma QT / Qwiic JST SH 4-pin Cable – 100mm Long | 1 |
| 4 | Anti-static bag | 1 |
| 5 | KTD2027 EVAL Kit Quick Start Guide — printed 1-page (A4 or US Letter) | 1 |
| 6 | EVAL Kit box | 1 |
QR Links for Documents
User-Supplied Equipment
- Bench Power Supply for VIN 5V and 0.5A, as needed for the intended application.
- Digital Multimeter – one or more, used to measure input/output voltages and currents.
Quick Start Procedures
- Connect the Stemma QT 4-wire cable (GND, 3V3, SDA, SCL) to the KTD2027 evaluation board connector CN1, as shown in the Typical Test Setup Figure below.
- Connect the other end of the Stemma QT 4-wire cable to the MCP2221A USB to I2C interface board.
- Connect the MCP2221A board to a computer via the USB type-C cable.
- Once the evaluation board is connected to the computer via the MCP2221A interface board, the KTD2027 evaluation board green LED D3 should be turned on indicating that the board is powered from the computer. The on-board VIN supply voltage should be around 3.3V. No external power supply is required.
Graphical User Interface (GUI)
The program software must be installed on a computer to communicate and
program the KTD2027 device. Install and run the KTD202x GUI executable file
software on the computer as follows.
Note: Both KTD2026 and KTD2027 devices use the same KTD202x GUI software.
- Install GUI file located on EVAL Kit Page (https://www.kinet-ic.com/ktd2027ewe-mmev01/).
- Copy the executable file “KTD202x Control Panel Rev 0.3.exe” onto the computer drive.
- To run the program on the computer, double-click on the executable file “KTD202x Control Panel Rev 0.3.exe”.
- The GUI window should be displayed on the computer screen with the status message “USB Device Attached” at the bottom left side of the window.
- If the displayed message is still “USB Device Detached”, make sure the computer is properly connected to the MCP2221A board with a USB cable.
References
- Kinetic Technologies - Analog & Mixed-Signal Semiconductors
- KTD2027 4-Channel RGBW LED Driver with I2C Control | Kinetic Technologies
- KTD2027EWE-MMEV01 - Kinetic Technologies