STR2W153D Datasheet | Sanken

STR2W152D and STR2W153D Current Mode Control PWM Regulator ICs For Switching Power Supplies Features and Benefits - Current mode PWM control - Built-in Random Switching function: reduces EMI noise, simplifies EMI filters, and cuts cost by external part reduction - Built-in Slope pensation function: avoids subharmonic oscillation - Built-in Leading Edge Blanking (LEB) function - Auto Standby function: ▫ Input power, PIN < 25 m W at no load ▫ Normal load operation: PWM switching ▫ Light load operation: Standby mode (Burst oscillation) - Soft Start function: reduces stress on internal power MOSFET and output rectifier diode Continued on the next page… Package: TO-220F-6L Description The STR2W152D and STR2W153D are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC in one package. Including a startup circuit and a standby function in the controller, the products achieve low power consumption, low standby power, and high cost-effectiveness in power supply systems, while reducing external ponents. The products are provided in fully molded TO-220 package types. Pin 2 is deleted for greater isolation. Applications Switching power supplies for electronic devices such as: - Home appliances - Digital appliances - Office automation (OA) equipment - Industrial apparatus - munication facilities Not to scale D1 VAC C1 Typical Application CRD Clamp Snubber Circuit D4...