LD7535 Datasheet | Leadtrend Technology

Description The LD7535/LD7535A are low cost, low startup current, current mode PWM controllers with green-mode powersaving operation. The integrated functions include the Features 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 Non-audible-noise Green Mode Control UVLO (Under Voltage Lockout) LEB (Leading-Edge Blanking) on CS Pin Programmable Switching Frequency Internal Slope pensation OVP (Over Voltage Protection) on Vcc Pin OLP (Over Load Protection) 300m A Driving Capability leading-edge blanking of the current sensing, internal slope pensation and the tiny package of SOT-26. They provide the users a superior AC/DC power application of higher efficiency, low external ponent counts, and lower cost solution. Furthermore, LD7535/LD7535A features more protections like OLP (Over Load Protection) and OVP (Over Voltage Protection) to eliminate the external protection circuits. And to satisfy different designs, 2 versions of OVP levels are implemented as --z z Applications z z z LD7535 --- 28.0V ± 1.5V. LD7535A --- 21.0V ± 1.5V. Switching AC/DC Adaptor and Battery Charger Open Frame Switching Power Supply 384X Replacement Typical Application LD7535&LD7535A-DS-01c December 2007 Leadtrend Technology Corporation ..net .leadtrend..tw LD7535/LD7535A Pin Configuration (LD7535) DIP-8 (TOP VIEW) P GND SOT-26 (TOP VIEW) 6 TOP MARK YYWW## 1 2 3 4 5 Y WP 35 2 4 3 Y The PB free package is identified in embossed font while green package in regular font. YY, Y : Year code (D: 2004, E: 2005…..) WW, W: Week code P : LD75.. (Product family code) ## : Production code VCC NC CS Pin Configuration (LD7535A) DIP-8 (TOP VIEW) P GND SOT-26 (TOP VIEW) 6 TOP MARK YYWW## 1 2 3 4 5 4 Y WP 35A 2 3 Y The PB free package is identified in embossed font while green package in regular font. YY, Y : Year code (D: 2004, E: 2005…..) WW, W:...