LD7537 Datasheet | Leadtrend

Description The LD7537 is built-in with several functions, protection and EMI-improved solution in a tiny package. It takes less ponents counts or circuit space, especially ideal for those total solutions of low cost. The implemented functions include low startup current, green-mode pensation. power-saving operation, leading-edge blanking of the current sensing and internal slope It also features more protections like OLP (Over Load Protection) and OVP (Over Voltage Protection) to prevent circuit damage occurred under abnormal conditions. Furthermore, the Frequency Swapping function is to reduce the noise level and thus helps the power circuit designers to easily deal with the EMI filter design by spending minimum amount of ponent cost and developing time. Features z z z z z z z z z z z z High-Voltage CMOS Process with Excellent ESD protection Very Low Startup Current (<20μA) Current Mode Control Green Mode Control UVLO (Under Voltage Lockout) LEB (Leading-Edge Blanking) on CS Pin Internal Frequency Swapping Internal Slope pensation OVP (Over Voltage Protection) on Vcc Pin Brownout Protection OLP (Over Load Protection) 300m A Driving Capability Applications z z Switching AC/DC Adaptor and Battery Charger Open Frame Switching Power Supply Typical Application AC input EMI Filter DC Output VCC BNO OUT LD7537 P GND CS photocoupler Leadtrend Technology Corporation LD7537-DS-01a December 2011 .leadtrend..tw Free Datasheet http://.n Datasheet. Pin Configuration DIP-8 (TOP VIEW) P BNO GND NC SOT-26 (TOP VIEW) OUT VCC CS 6 TOP MARK YYWWPP 1 2 3 4 5 37 YWP pp 1 2 4 3 P BNO Ordering Information Part number LD7537GL LD7537GN SOT-26 DIP-8 YY, Y : WW, W : PP : P37 : Year code (D: 2004, E: 2005…..) Week code Production code LD7537 Package Green Package Green Package Top Mark YWP/37 LD7537GN Shipping 3000 /tape & reel 3600 /tube /Carton The LD7537GL is ROHS pliant. Protection...