STR-W6200D Series Power IC for PWM Type Switching Power Supply with Low Noise and Low Standby Power ■ General Descriptions The STR-W6200D 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 condition. The product achieves high cost-performance power supply systems with few external components. ■ Features Current-Mode Type PWM Control PWM with Jittering Function TO-220F-6 The function reduces the EMI noise and enables simplified (low-cost) EMI filters. The jittering period is adjustable by an external capacitor. Auto-Standby Function The burst-oscillation enables the low standby power. Input Power PIN < 100mW at no load Built-in Startup Circuit, enabling low power consumption Overcurrent Protection (OCP) with Built-in Input Compensation Circuit The function has less AC input voltage dependency. Overload Protection (OLP) with Built-in Delay Timer ( the delay time is adjustable by an external capacitor) External Latch Protection (ELP) The function enables the latch shutdown by external signal. 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 Switching Power Supplies for Home Appliances (White Goods), Digital Consumer Equipment, OA Equipment, Industry Machines, Communication Devices, Others ■ Product Lineup Product No. fOSC (kHz) MOSFET VDSS (MIN) (V) RDS(ON)(MAX) (Ω) STR-W6251D 67 650 3.95 STR-W6252D 67 650 2.8 STR-W6253D 67 650 1.9 2010/08 ■ Typical Application Circuit VAC VOUT PC1 1 4 D/ST GND Vcc PC2 PC2 Cont． FM/ELP External Latch Signal 7 FB 6 3 S/OCP 5 GND PC1 STR-W6200D ■ Typical Electrical Characteristics STR-W6251D Power Supply Characteristics Input: 85 - 264VAC, POUT: 10W (5V/2A) Input Power PIN－ Output Power POUT 入力電力Pin-出力電力Po Efficiency η効率η-出力電流Io － Output Current IOUT 0.8 0.8 70 70 60 60 50 50 40 40 30 30 20 20 10 10 00 0.0 0 AC120V 120VAC AC230V 230VAC 0.7 0.7 0.6 0.6 入 力 電 力 P in [W ] 効 率 η [% ] Efficiency 80 80 Input Power PIN (W) η(%) 100 100 90 90 0.5 0.5 AC120V 120VAC 230VAC AC230V 0.4 0.4 0.3 0.3 0.2 0.2 0.1 0.1 0.5 0.5 1.0 1.0 1.5 1.5 出力電流Io[A] 2.0 2.0 Output Current IOUT (A) 2.5 2.5 0.00 0.00 0.1 0.1 0.2 0.2 0.3 0.3 0.4 0.4 0.5 0.5 Output出力電力Po Power[W]POUT (W) Warning 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. 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. The user must take responsibility for considering and determining which objects the products in this document are used with. 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. The contents in this document must not be transcribed or copied without Sanken’s written consent. SANKEN ELECTRIC CO.,LTD. 2010/08