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Power IC for PWM Type Switching Power Supply with Low Noise and Low Standby Power ■■ ■■ General Descriptions The STR-A6000 series products are power ICs for swi tching 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 /circle6 Current-Mode Type PWM Control /circle6 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 f OSC . /circle6 Auto-Standby Function: The burst-oscillation enables the low standby power. Input Power P IN < 25mW at no load /circle6 Built-in Startup Circuit, enabling low power consumption /circle6 Brown-In / Brown-Out Function The function enables the oscillation start/stop by externally rated input voltage and makes protections at low input voltage. /circle6 Overcurrent Protection (OCP) with Built-in Input Compensation Circuit: The protection has less AC input voltage dependency. /circle6 Overload Protection (OLP) with Built-in Delay Timer /circle6 High Speed Latch Release Function The function releases the latch immediately at AC supply OFF, after the latch protection operation. /circle6 Bias-Assist Function, reducing Operating VCC voltage drop The function improves the startup operation and makes a low V CC capacitor applicable. /circle6 Leading Edge Blanking Function /circle6 Slope Compensation Function /circle6 Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET /circle6 Various Protections ■ Applications /circle6 Battery Chargers; Mobile Phones, Digital Cameras, Camcorders, Electric Shavers, Emergency/Inducement Lights etc. /circle6 Standby Power Supplies; LCD-TVs, PDP-TVs, Desk-Top PCs, LBPs, Audio Equipment, etc. /circle6 Small SMPSs; Ink Jet Printers, BD/DVD Players, CD Players, Set-Top-Boxes, etc. /circle6 Auxiliary Power Supplies for Controllers; Air Conditioners, Refrigerators, Washing Machines, Dish Washers, etc ■ Product Lineup Product No fosc (kHz) MOSFET V DSS MIN (V) R DS(ON) MAX (Ω) POUT (Note 1) 230VAC/Universal STR-A6051M 3.95 16W / 12W STR-A6052M 2.8 20W / 16W STR-A6053M 1.9 24W / 20W STR-A6059H 650 6.0 10W / 8W STR-A6062H 2.8 15W / 13W STR-A6069H 100 700 6.0 10W / 8W STR-A6079M 67 800 19.2 8W / 5W Note 1: The maximum output power is derived from thermal specifications. The actual output power may be available around 120 –140% of the above values, respectively, but may be limited by ON duty setting on transformer design or lower output voltage.
SANKEN ELECTRIC CO.,LTD. Warning /circle6 The contents in this document are subject to changes, for improvement and other purposes, without notice. Make sure that this is the latest version of the document before use. /circle6 The operation and circuit examples in this document are provided for reference purposes only. Sanken assumes no liability for violation of industrial property, intellectual property, or other rights of Sanken or third parties, that stem from these examples. /circle6 The user must take responsibility for considering and determining which objects the products in this document are used with. /circle6 Although Sanken will continue to improve the quality and reliability of its products, semiconductor products, by their nature, have certain fault and failure rates. The user must take responsibility for designing and checking to secure the device and system so that a part failure may not lead to human injury, fire, damages, or other losses. /circle6 The contents in this document must not be transcribed or copied without Sanken’s written consent. 100VAC 220VAC ■ Typical Application Circuit Typical Electrical Characteristics STR-A6079M Efficiency & Input Power at Standby SS SSTT TTRR RR-- --AA AA66 6600 0000 0000 00 DD DD// //SS SSTT TT DD DD// //SS SSTT TT VV VVcc cccc cc 88 88 7 7 77 55 55 BB BBRR RRSS SS// //OO OOCC CCPP PP 11 11 2 2 22 3 3 33 4 4 44 GG GGNN NNDD DD OO OOLL LLPP PP FF FFBB BB// // VV VVOO OOUU UUTT TT GG GGNN NNDD DD VV VVAA AACC CC 0 2 4 6 Without Brown-IN/Brown-OUT Detection Resistor 100 150 200 250 0 50 100 150 Standby Power (P OUT : 5W Power Supply) Output Power POUT (mW) At No Loa At No Loa At No Loa At No Loadd dd 19 19 19 19.6mW .6mW .6mW .6mW 100V 100V 100V 100VAC AC AC AC 20.0mW 20.0mW 20.0mW 20.0mW 22 2222 220V 0V 0V 0VAC AC AC AC 100VAC 220VAC Efficiency η－－ －－ Output Power P OUT Output Power P OUT (W) Efficiency η(%) Input Power PIN (mW)