ON Semiconductor Is Now To learn more about onsemi, please visit our website at www.onsemi.com onsemi andand other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba onsemi or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. onsemi reserves the right to make changes at any time to any products or information herein, without notice. The information herein is provided as-is and onsemi makes no warranty, representation or guarantee regarding the accuracy of the information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using onsemi products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by onsemi. Typical parameters which may be provided in onsemi data sheets and/ or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customers technical experts. onsemi does not convey any license under any of its intellectual property rights nor the rights of others. onsemi products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use onsemi products for any such unintended or unauthorized application, Buyer shall indemnify and holdo nsemi and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that onsemi was negligent regarding the design or manufacture of the part. onsemi is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. Other names and brands may be claimed as the property of others. CCRACGEVB An AC LED Lighting Evaluation Board Using Constant Current Regulators (CCR) Evaluation Board User s www.onsemi.com Manual EVAL BOARD USERS MANUAL Six Different Circuit Topologies Covering Smallest Bill of Materials to Widest Input Voltage: 12 VAC to 250 VAC. Introduction The CCRACGEVB (see Figure 1) has an input voltage Engineers developing solid-state lighting control systems range of 12 VAC to 250 VAC and showcases the need to balance circuit efficiency, power factor (PF), total NSIC20x0JBT3G series of 120 V CCRs and the harmonic distortion (THD), total cost of bill of materials NSI50150ADT4G (150 350 mA Adjustable) CCR. It has (BOM) and input voltage range to cover large geographic circuit topologies for Straight LED Driving, Capacitive regions and aesthetics to satisfy different customer Drop LED Driving and Chopper LED Driving, all with requirements. The CCRACGEVB allows engineers to and without dimming by typical triac dimmers. It has a evaluate six different topologies as they approach this simple current inrush limiting circuit to suppress the impact difficult balancing act. of initial high inrush currents and power spikes. Dimmer circuit Input AC Input Cap Drop Chopper for Straight Bridge CCRs Inrush Current Limiter Dimmer circuit for Chopper and Cap Figure 1. CCR AC Evaluation Board CCRACGEVB Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: February, 2015 Rev. 1 EVBUM2176/D