STRW6000S Datasheet | Sanken

STR-W6000S Series PWM Off-Line Switching Regulator ICs Features and Benefits - Current mode PWM control - Brown-In and Brown-Out function: auto-restart, prevents excess input current and heat rise at low input voltage - Auto Standby function: improves efficiency by Burst mode operation in light load ▫ Normal load operation: PWM mode ▫ Light load operation: Burst mode - No load power consumption < 30 m W - Operating frequency, f OSC(AVG)(typ) = 67 k Hz - Random Switching function: reduces EMI noise, and simplifies EMI filters - Slope pensation function: avoids subharmonic oscillation - Leading Edge Blanking function Continued on the next page… Package: TO-220F-6L Not to scale Description The STR-W6051S, STR-W6052S, and STR-W6053S are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC in one package. To achieve low power consumption, these products include a startup circuit and a standby function in the controller. The switching modes are automatically changed according to load conditions: in normal operation, PWM mode, and in light load conditions, burst mode. The rich set of protection Features helps to realize low ponent counts, and high performanceto-cost power supply. Applications: Switching power supplies for electronic devices such as: - Home appliances - Digital appliances - Office automation (OA) equipment - Industrial apparatus - munication facilities Typical Application Circuit BR1 C1 C(CR) damper snubber CRD clamp snubber T1...