IC STR SWITCHING A6059H A6059 PWM CONTROLLER REGULATOR

Detail IC STR SWITCHING A6059H A6059 PWM CONTROLLER REGULATOR

■ 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

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