Skorn on Mar 07, , Automobiles and Aircraft General Lighting. Please allow business days for a response. Chagrin Faraday Member Posts: I saw that most of the people use a CAT to drive the LEDs, but this requires the use of a resistor to limit voltage and I would like to prevent that.

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I was able to hook up the TLC and the Arduino nicely. I added a link to the data sheet at the end. Lev agrees that the delivery of any Software does not constitute a sale and the Software is only licensed.

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Arduino Uno, TLC and CAT how do I make them work?

Skorn on Mar 07, Word of caution though – dat4201 the datasheet states that 90K is the maximum recommended Rset value I believe that that translates to the datasheet’s stated minimum 50ma of LED current never fully off. A patented switching control algorithm allows highly efficient and accurate LED current regulation. In the CAT data sheet it is noted that a 2 Ohm resistor should be added between the 24V input and C1 to protect against too high current.

Four high level ideas I have off the top of my head are: Log into MyON to proceed.

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This Agreement may not be amended except in writing signed by an authorized representative of each of the parties hereto. Licensee agrees that it has received a copy of the Content, including Software i. Chagrin on Jan 18, However, during the term of this Agreement ON Semiconductor may from time-to-time in its sole discretion provide such Support to Licensee, and provision of same shall not create nor impose any future obligation on ON Semiconductor to provide any such Support.

CAT LED Driver, mA, Step-Down Converter

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Smaller, more efficient alternative to linear regulators for driving high-brightness LEDs dat4201 step-down applications.

The following Sections of this Agreement shall survive the termination or expiration of this Agreement for any reason: I would like to be able to regulate the brightness via a computer that communicates with an Arduino Uno connected to a TLC This Agreement may be executed in counterparts, each of which shall be deemed to be an original, and which together shall constitute one and the same agreement.


As youve figured out, the PWM is cat44201 due to the fact the chip is a current sink so the LEDs can never be fully turned off. If you agree to this Agreement on behalf of a company, you represent and warrant that you have authority to bind such company to this Agreement, and your agreement to these terms will be regarded as the agreement of such company.

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CAT4201: LED Driver, 350 mA, Step-Down Converter

The datasheet never fully answers that question and only shows current up to 35K Fig. All reports, documents, materials and other information collected or prepared during an audit shall be deemed to be the confidential information of Licensee “Licensee Confidential Information”and ON Semiconductor shall protect the confidentiality of all Licensee Confidential Information; provided that, such Licensee Confidential Information shall not be disclosed to any third parties with the sole exception of the independent third party auditor approved by Licensee in writing, and its permitted use shall be restricted to the purposes of the audit rights described in this Section Any such audit shall not interfere with the ordinary business operations of Licensee and shall be conducted at the expense of ON Semiconductor.

Chagrin Faraday Member Posts: