The following document contains information on Cypress products. The document has the series name, product name, and ordering part numbering with the prefix MB. However, Cypress will offer these products to new and existing customers with the series name, product name, and ordering part number with the prefix CY. How to Check the Ordering Part Number 1. Go to www.cypress.com/pcn. 2. Enter the keyword (for example, ordering part number) in the SEARCH PCNS field and click Apply. 3. Click the corresponding title from the search results. 4. Download the Affected Parts List file, which has details of all changes For More Information Please contact your local sales office for additional information about Cypress products and solutions. About Cypress Cypress is the leader in advanced embedded system solutions for the world s most innovative automotive, industrial, smart home appliances, consumer electronics and medical products. Cypress microcontrollers, analog ICs, wireless and USB-based connectivity solutions and reliable, high-performance memories help engineers design differentiated products and get them to market first. Cypress is committed to providing customers with the best support and development resources on the planet enabling them to disrupt markets by creating new product categories in record time. To learn more, go to www.cypress.com. MB39C605 Phase Dimmable PSR LED Driver IC for LED Lighting Description MB39C605 is a Primary Side Regulation (PSR) LED driver IC for LED lighting. Using the information of the primary peak current and the transformer-energy-zero time, it is able to deliver a well regulated current to the secondary side without using an opto-coupler in an isolated flyback topology. Operating in critical conduction mode, a smaller transformer is required. In addition, MB39C605 has a built-in phase dimmable circuit and can constitute the lighting system for phase dimming. It is most suitable for the general lighting applications, for example replacement of commercial and residential incandescent lamps. Features PSR topology in an isolated flyback circuit High efficiency (>80% : without dimmer) and low EMI by detecting transformer zero energy TRAIC Dimmable LED lighting Highly reliable protection functions Under voltage lock out (UVLO) Over voltage protection (OVP) Over current protection (OCP) Short circuit protection (SCP) Over temperature protection (OTP) Switching frequency setting : 30 kHz to 133 kHz Input voltage range VDD : 9V to 20V Input voltage for LED lighting applications : AC110VRMS, AC230VRMS Output power range for LED lighting applications : 5 W to 10 W Small Package : SOP-8 (3.9 mm 5.05 mm 1.75 mm Max ) Applications Phase dimmable (Leading/Trailing) LED lighting LED lighting Note: This product supports the web-based design simulation tool, Easy DesignSim. It can easily select external components and can display useful information. Please access from