STR-W6253D

STR-W6251D, STR-W6252D, and STR-W6253D PWM Off-Line Switching Regulator ICs Features and Benefits ▪ TO-220 fully-molded package with 6 pins ▪ Current mode PWM control ▪ PWM and frequency modulation functions: reduces EMI noise, simplifies EMI filters, and cuts cost by external part reduction ▪ Built-in Slope Compensation circuit: avoids subharmonic oscillation ▪ Automatic Standby Mode function (Input Power < 40 mW at no load) ▫ Normal operation: PWM mode ▫ Light load operation: Standby mode (burst oscillation) ▪ Built-in Audible Noise Suppression function during Standby mode Continued on the next page… Package: TO-220F-6L Not to scale Description STR-W6200D series 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 product achieves low power consumption, low standby power, and high cost-effectiveness in power supply systems, while reducing external components. Applications: Switching power supplies for electronic devices such as: White goods Consumer electronics Office automation Industrial equipment Communication equipment Typical Application VAC Clamp Snubber Circuit T1 D3 L2 VOUT C10 R9 P R3 PC1 R6 C1 D4 S R4 R7 C5 C6 R 5 C7 U1 STR-W6200D D1 R2 C2 D U2 R8 GND D/ST S/OCP VCC GND FB FM/ELP STR-W6200D-DS 1 34567 CV ROCP Damper Snubber C4 PC1 C3 External Latch Circuit (Optional) C8 SANKEN ELECTRI...