LD7575B
Description
The LD7575B is a current-mode PWM controller with excellent power-saving operation. It features a highvoltage current source to directly supply the startup current from bulk capacitor and further to provide a lossless startup circuit. The integrated functions such as the leading-edge blanking of the current sensing, internal slope pensation, and the small package provide the users a high efficiency, minimum external ponent counts, and low cost solution for AC/DC power applications.
Furthermore, the embedded over voltage protection, over load protection and the special green-mode control provide the solution for users to design a high performance power circuit easily. The LD7575B is offered in both SOP-8 and DIP-8 package.
Features z High-Voltage (500V) Startup Circuit z Current Mode Control z Non-Audible-Noise Green Mode Control z UVLO (Under Voltage Lockout) z LEB (Leading-Edge Blanking) on CS Pin z Programmable Switching Frequency z Internal Slope pensation z OVP (Over...
