Микросхема STRA6079M DIP7, А6079М ШИМ контроллер

Микросхема STR-A6079M DIP7, мар-ка A6079M, ШИМ контроллер.

■General Descriptions

The STR-A6000 series products are power ICs for switching power supplies, incorporating a power MOSFET and a current-mode type PWM controller IC. The low standby power is accomplished by the automatic switching between the PWM operation in normal operation and the burst-oscillation under light load conditions. The product achieves high cost-performance power supply systems with few external components.

■ Features

• Current-Mode Type PWM Control
• Built-in Random Switching Function The function reduces the EMI noise and enables a simplified (low-cost) EMI filter, by the slight- random-change of PMW frequency fOSC.
• Auto-Standby Function: The burst-oscillation enables the low standby power. Input Power PIN < 25mW at no load
• Built-in Startup Circuit, enabling low power consumption
• Brown-In / Brown-Out Function. The function enables the oscillation start/stop by externally rated input voltage and makes protections at low input voltage.
• Overcurrent Protection (OCP) with Built-in Input Compensation Circuit:

The protection has less AC input voltage dependency.

• Overload Protection (OLP) with Built-in Delay Timer
• High Speed Latch Release Function

The function releases the latch immediately at AC supply OFF, after the latch protection operation.

• Bias-Assist Function, reducing Operating VCC voltage drop

The function improves the startup operation and makes a low VCC capacitor applicable.

• Leading Edge Blanking Function
• Slope Compensation Function
• Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET
• Various Protections

Overcurrent Protection (OCP) - Pulse-by-Pulse

Overload Protection (OLP) - Auto-Restart

Overvoltage Protection (OVP) - Latch Shutdown

Thermal Shutdown Protection (TSD) - Latch Shutdown

■ Applications

• Battery Chargers; Mobile Phones, Digital Cameras, Camcorders, Electric Shavers, Emergency/Inducement Lights etc.
• Standby Power Supplies; LCD-TVs, PDP-TVs, Desk-Top PCs, LBPs, Audio Equipment, etc.
• Small SMPSs; Ink Jet Printers, BD/DVD Players, CD Players, Set-Top-Boxes, etc.
• Auxiliary Power Supplies for Controllers; Air Conditioners, Refrigerators, Washing Machines, Dish Washers, etc