STR-A60xxM Datasheet | Allegro MicroSystems

.Data Sheet.co.kr STR-A60xx M Current Mode Control PWM Regulator IC For Switching Power Supplies Features and Benefits - Small DIP8 package with 8 to 24 W power output 230 VAC - Current Mode PWM control with 67 k Hz switching frequency - Built-in Random Switching function, reducing EMI noise, and simplifying EMI filters, and therefore reducing cost - Built-in Slope pensation function, avoiding subharmonic oscillation - Built-in Auto Standby function (Input Power, PIN < 25 m W 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, reducing power consumption in standby operation, and eliminating external ponents. - Bias-Assist function, improving startup operation, suppressing VCC voltage drop in operation, and allowing use of smaller VCC capacitor Continued on the next page… Description The STR-A60xx M series are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC. Including a startup circuit and a standby function in the controller, the product achieves low power consumption, low standby power, and high cost-effectiveness power supply systems with few external ponents. The STR-A60xx M internal MOSFET has a V DSS of 650 V(min) or 800 V(min), and an RDS(on) of 1.9 to 19.2 Ω with a frequency of 67 k Hz. Power output is rated at 8 to 24 W at 230 VAC input and 5 to 20 W at wide input range (85 to 265 VAC). The device is provided in an industry-standard DIP-8 package, with pin 6 removed for increased isolation. Applications: For switching power supplies used in: - Battery chargers for cell phones, digital cameras, video cameras, shavers, emergency lights - Stand-by power for LCD TVs, desktop PCs, LB Printers, audio equipment - Small switched-mode power supplies for inkjet printers, DVD/CD players, set-top boxes - Auxiliary power supplies for A/C, refrigerators, washers, dish...