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. Includ- ing 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
Electrical characteristics
Intermittent Operation stability test: The switching regulator shall ON-OFF for 20,000 time at an interval of 10 sec at maximum load, after that electrical characteristics shall be satisfied.
Low temperature operation: The switching regulator is left at the operating guarantee minimum temperature for 2 hours without applying electricity. After that power shall be turned on, and then the electrical characteristics shall be satisfied.
Low temperature Storage test Leave at low temperature: The switching regulator is left at minimum storage temperature for 96 hours or more. Then the switching regulator is left at a room temperature and humidity for 1hour or more, after that electrical characteristics shall be satisfied.
Schematic
Connector voltages
Bottom and top view
