LD7932M

LD7932M 04/10/2013 Green Mode Off-line Power Switch with Brown-Out Protections REV. 00 General Description The LD7932M is integrated with a 600V power MOSFET and a current mode PWM controller in a DIP-7 package. It takes less components counts or circuit space, especially ideal for those total solutions of low cost. The implemented functions include low startup current, green-mode compensation. 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 from being damaged 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 component cost and developing time. Features  Built-in 600V Power MOSFET            High-Voltage CMOS Process with Excellent ESD Protection Very Low Startup Current (<17A) Current Mode Control Green Mode Control UVLO (Under Voltage Lockout) LEB (Leading-Edge Blanking) on CS Pin Internal Frequency Swapping Internal Slope Compensation OVP (Over Voltage Protection) on Vcc Pin Brownout Protection OLP (Over Load Protection) Applications   Switching AC/DC Adaptor Open Frame Switching Power Supply Typical Application AC input EMI Filter DC Output VCC BNO LD7932M S photocoupler Drain COMP GND 1 Leadtrend Technology Corporation LD7932M...