STR3A155 Datasheet | Sanken

STR3A151, STR3A152, STR3A153, STR3A154, STR3A155 PWM Off-Line Switching Regulator ICs 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 < 10 m W at no load with low power consumption shunt regulator ▫ Normal load operation: PWM switching ▫ Light load operation: Standby mode (Burst oscillation) Continued on the next page… Package: DIP8 Not to scale Description STR3A100 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 ponents. The products are provided in an industry standard DIP8 package. Applications Switching power supplies for electronic devices such as: - Stand-by power supply for LCD/PDP television, desktop PC, multi-function printer, audio equipment, and so forth - Small switched-mode power supply (SMPS) for printer, BD/DVD player, set-top box, and so forth - Auxiliary power supply for air conditioner, refrigerator, washer, dishwasher, and so forth D1 C1 Typical Application CRD Snubber Circuit C9 T1 D4 C5 R3 D3 S...