General Description
The 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.

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
▪ Built-in startup circuit: reduces power consumption in standby operation, and eliminates external components
▪ Bias-Assist function: improves startup operation, suppresses VCC pin voltage drop in operation, and allows use of smaller VCC capacitor
▪ Built-in Leading Edge Blanking function
▪ Protection Functions:
   ▫ Overcurrent Protection function (OCP); pulse-by-pulse, built-in compensation circuit to minimize OCP point variation on AC input voltage
   ▫ Overload Protection function (OLP); auto restart, built-in timer, reduces heat during overload condition, and few external components required
   ▫ External Latch Protection function (ELP): latched shutdown by external signal
   ▫ Overvoltage Protection function (OVP): latched shutdown
   ▫ Thermal Shutdown function (TSD); latched shutdown Not Recommended

APPLICATIONs
Switching power supplies for electronic devices such as:
• White goods
• Consumer electronics
• Office automation
• Industrial equipment
• Communications equipment