LD7750GS PDF datasheet can download.
This product has High Voltage Green-Mode PWM Controller functions.
This is one of the semiconductor types. This part name is LD7750GS.
Manufacturers of the product is Leadtrend.
Image and pinout :
Some of the text files within the PDF file
LD7750 2/23/2010 High Voltage Green-Mode PWM Controller with Over Temperature Protection Rev. 00b General
Features The LD7750 integrates several functions of protections, and EMI-improved solution in a SOP-8, SOP-7, or DIP-8 package to minimize the component counts and the circuit space. The device provides functions of low startup current, green-mode power-saving operation, leading-edge blanking of the current sensing and internal slope compensation. Also, the LD7750 features more protections like OLP (Over Load Protection), OVP (Over Voltage Protection), and OTP (Over Temperature Protection) to prevent the circuit being damaged under the abnormal conditions. The LD7750 features built-in auto-recovery function for OVP on Vcc pin and OLP. Furthermore, the LD7750 features frequency swapping to depress radiation noise, providing an excellent solution for EMI filter design. z High-Voltage (500V) Startup Circuit z Current Mode Control z Non-Audible-Noise Green Mode Contro [ … ]
Please refer to the file for details.