LD7523A Datasheet | Leadtrend

Description The LD7523A is a low startup current, current mode PWM controller with green-mode power-saving operation. The SOP-8/DIP-8 package integrates functions such as the leading- edge blanking of the current sensing, internal slope pensation, line pensation, and several protection features including cycle-by-cycle current limit, OVP, OTP, OLP, and brownout protection. It provides the users a high efficiency, low external ponent counts solution for AC/DC power applications. Furthermore, to satisfy various protection requirements, both latch-mode protection and auto-recoverable protection can be easily achieved by configuring LD7523A on different operation modes. The special green-mode control is not only to achieve the low power consumption but also to offer a non-audible-noise operation when the LD7523A is operating under light load or no load condition. Typical Application Features z High-Voltage CMOS Process with Excellent ESD protection z Very Low Startup Current (< 35μA) 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 Internal Slope pensation z Programmable Line pensation z OVP (Over Voltage Protection) z OLP (Over Load Protection) z OTP (Over Temperature Protection) through a NTC z Brownout Protection z Flexibility on Latch/Auto-Recoverable Protection Mode z 500m A Driving Capability Applications z Switching AC/DC Adaptor and Battery Charger z Open Frame Switching Power Supply z LCD Monitor/TV Power Leadtrend Technology Corporation LD7523A-DS-01 December 2008 .leadtrend..tw Pin Configuration SOP-8 & DIP-8(TOP VIEW) OVP VCC OUT GND 8 765 TOP MARK YYWWPP 1 234 YY : Year code (D: 2004, E: 2005…..) WW : Week code ## : Production code BNO P (-)LATCH Ordering Information Part number Package LD7523A GS SOP-8 Green Package LD7523A GN DIP-8 Green Package TOP MARK LD7523AGS LD7523AGN Shipping 2500 /tape & reel 3600/tube /carton The LD7523A is ROHS...