ACT411 Product Brief, 10-Mar-14 ActivePSRTM Quasi-Resonant PWM Controller and overload conditions, it would enter auto restart mode including cycle-by-cycle current limiting. FEATURES • Patented Primary Side Regulation ACT411 is to achieve no overshoot and very short rise time even with big capacitive load (4000µF) with the built-in fast and soft start process, . Technology • Quasi-Resonant Operation • Adjustable up to 120kHz Switching The Quasi-Resonant (QR) operation mode can effectively improve efficiency, reduce the EMI noise and further reduce the components in input filter. Frequency • • • • +/-5% Output Voltage Regulation Accurate OCP/OLP Protection ACT411 is idea for application up to 36 Watt. Integrated Output Cord Compensation Figure 1: Integrated Line and Primary Inductance Compensation Simplified Application Circuit • Built-in Soft-Start Circuit • Line Under-Voltage, Thermal, Output Overvoltage, Output Short Protections • • • • Current Sense Resistor Short Protection Transformer Short Winding Protection Less than 100mW Standby Power Complies with Global Energy Efficiency and CEC Average Efficiency Standards • Tiny SOT23-6 Packages APPLICATIONS • AC/DC Adaptors/Chargers for ADSL, PDAs, E-books • Adaptors for Portable Media Player, DSCs, and Other GENERAL DESCRIPTION The ACT411 is a high performance peak current mode PWM controller which applies ActivePSRTM and ActiveQRTM technology. ACT411 achieves accurate voltage regulation without the need of an opto-coupler or reference device. The ACT411 is designed to achieve less than 100mW Standby Power. By applying frequency fold back and ActiveQRTM technology, ACT411 exceeds the latest ES2.0 efficiency standard. ACT411 integrates comprehensive protection. In case of over temperature, over voltage, short winding, short current sense resistor, open loop Innovative PowerTM ActivePSRTM is a trademark of Active-Semi. -1- www.active-semi.com Copyright © 2014 Active-Semi, Inc. ACT411 Product Brief, 10-Mar-14 ORDERING INFORMATION PART NUMBER ACT411US-T TEMPERATURE PACKAGE RANGE -40°C to 85°C PINS PACKING METHOD 6 TUBE & REEL SOT23-6 OPTION (DC TOP MARK CORD %) FRYT 3 PIN CONFIGURATION SOT23-6 ACT411US PIN DESCRIPTIONS PIN NAME DESCRIPTION 1 CS 2 GND Ground. 3 GATE Gate Drive. Gate driver for the external MOSFET transistor. 4 VDD 5 FB 6 COMP Current Sense Pin. Connect an external resistor (RCS) between this pin and ground to set peak current limit for the primary switch. Power Supply. This pin provides bias power for the IC during startup and steady state operation. Feedback Pin. Connect this pin to a resistor divider network from the auxiliary winding. Compensation Pin. Innovative PowerTM ActivePSRTM is a trademark of Active-Semi. -2- www.active-semi.com Copyright © 2014 Active-Semi, Inc. ACT411 Product Brief, 10-Mar-14 Figure 2: ACT411, Universal VAC Input, 12V/1A Output Charger ACT411 Bill of Materials Table 2: ITEM REFERENCE 1 U1 QTY MANUFACTURER IC, ACT411,SOT23-6 2 3 DESCRIPTION 1 Active-Semi. C1,C2 Capacitor, Electrolytic, 10µF/400V, 10x15mm 2 KSC C3 Capacitor, Ceramic, 1000pF/500V, 0805,SMD 1 POE 4 C4 Capacitor, Electrolytic,10µF/35V,5x11mm 1 KSC 5 C5,C6 Capacitor, Electrolytic, 470µF/16V, 8x11.5mm 2 KSC 6 C8 Capacitor, Ceramic, 0.1µF/25V, 0805,SMD 1 POE 7 C9 Capacitor, Ceramic, 1000pF/100V, 0805,SMD 1 POE 8 CY1 Safety Y1,Capacitor,1000pF/400V,Dip 1 UXT 9 D1-D4 Diode,Rectifier,1000V/1A,1N4007, DO-41 4 Good-Ark 10 D5 Fast Recovery Rectifier, RS1M,1000V/1.0A, RMA 1 PANJIT 11 D6 Fast Recovery Rectifier,RS1D,200V/1.0A,SMA 1 PANJIT 12 D7 Diode, 1N4148 SMD 1 PANJIT 13 D8 Diode, schottky, 100V/5A, SB5100, DO-47 1 Good-Ark 14 L1 Axial Inductor, 1.5mH, 5*7,Dip 1 SoKa 15 L2 Axial Inductor, 0.55*5T, 5*7,Dip 1 SoKa 16 Q1 Mosfet Transistor, 4N60,TO-220 1 Infineon 17 PCB1 PCB, L*W*T=52.2x30x1.6mm,Cem-1,Rev:A 1 Jintong 18 FR1 Fuse,1A/250V 1 TY-OHM 19 R2 Carbon Resistor, 200KΩ, 1206, 5% 1 TY-OHM 20 R3 Chip Resistor, 100Ω, 0805, 5% 1 TY-OHM 21 R1 Chip Resistor, 51Ω, 0805, 5% 1 TY-OHM 22 R4,R13 Chip Resistor, 22Ω, 0805, 5% 2 TY-OHM TY-OHM 23 R5 Chip Resistor, 53.6KΩ, 0805,1% 1 24 R6 Chip Resistor, 10.2KΩ, 0805, 1% 1 TY-OHM 25 R7,R8 Chip Resistor, 1MΩ, 0805 , 5% 2 TY-OHM TY-OHM 26 R9 Chip Resistor, 1.24Ω, 1206,1% 1 27 R10,R15 Chip Resistor, 200Ω, 0805 , 5% 2 TY-OHM 28 R11 Chip Resistor, 7KΩ, 0805, 5% 1 TY-OHM 29 R12 Chip Resistor, 3KΩ, 0805 , 5% 1 TY-OHM 30 T1 Transformer, Lp=0.4mH, EE16 1 Innovative PowerTM ActivePSRTM is a trademark of Active-Semi. -3- www.active-semi.com Copyright © 2014 Active-Semi, Inc.