MB39C604 Datasheet, PDF (1/36 Pages) Cypress Semiconductor – PSR topology in an isolated flyback circuit

MB39C604
PSR LED Driver IC for
LED Lighting
MB39C604 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, MB39C604 has a
built-in dimmable circuit and can constitute the lighting system for PWM 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 power factor (>0.9 : Not dimming) in Single Conversion
High efficiency (>85% : Not dimming) and low EMI by detecting transformer zero energy
PWM 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 : AC110V_RMS, AC230V_RMS
Output power range for LED lighting applications : 5W to 50W
Small Package : SOP-8 (3.9 mm × 5.05 mm × 1.75 mm[Max])
Applications
LED lighting
PWM dimmable LED lighting
Online Design Simulation
Easy DesignSim
This product supports the web-based design simulation tool.
It can easily select external components and can display useful information.
Please access from the following URL.
cypress.transim.com/login.aspx
Cypress Semiconductor Corporation
Document Number: 002-08441 Rev.*A
• 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Revised February 22, 2016