ACT365 ® Product Brief, 15-Apr-11 High Performance ActivePSRTM Primary Switching Regulator The ACT365 ActivePSRTM is optimized for high performance, cost-sensitive applications, and utilizes Active-Semi’s proprietary primary-side feedback architecture to provide accurate constant voltage, constant current (CV/CC) regulation without the need of an opto-coupler or reference device. Integrated line and primary inductance compensation circuitry provides accurate constant current operation despite wide variations in line voltage and primary inductance. Integrated output cord resistance compensation further enhances output accuracy. The ACT365 achieves excellent regulation and transient response, yet requires less than 150mW of standby power. FEATURES • Patented Primary Side Regulation Technology • No Opto-Coupler • Suitable Operation Frequency up to 85kHZ • Best-in-Class Constant Voltage Accuracy • Proprietary Fast Startup with Big Capacitive Load • Built-in Soft-Start Circuit • Integrated Line and Primary Inductance Compensation The ACT365 is optimized for compact size 6W to 12W adapter applications. It is available in SOP-8 package. • Integrated Programmable Output Cord Resistance Compensation • Line Under-Voltage, Output Over-Voltage, Figure 1: Output Short-Circuit and Over-Temperature Protection Simplified Application Circuit • Complies with all Global Energy Efficiency and CEC Average Efficiency Standards • Dedicate Adapter Application from 6W to 12W APPLICATIONS • RCC Adapter Replacements • Linear Adapter Replacements • Standby and Auxiliary Supplies GENERAL DESCRIPTION The ACT365 belongs to the high performance patented ActivePSRTM Family of Universal-input AC/DC off-line controllers for adapter applications. It is designed for flyback topology working in discontinuous conduction mode (DCM). The ACT365 meets all of the global energy efficiency regulations (CEC, European Blue Angel, and US Energy Star standards) while using very few external components. Table 1: Output Power Table PART NUMBER The ACT365 ensures safe operation with complete protection against all fault conditions. Built-in protection circuitry is provided for output shortcircuit, output over-voltage, line under-voltage, and over temperature conditions. Innovative PowerTM ActivePSRTM is a trademark of Active-Semi. ACT365SH-T (SOP-8) -1- 85-265VAC TYPICAL APPLICATION 5V/2.1A Po MAX 12W www.active-semi.com Copyright © 2011 Active-Semi, Inc. ACT365 ® Product Brief, 15-Apr-11 ORDERING INFORMATION PART NUMBER TEMPERATURE RANGE PACKAGE PINS PACKING METHOD TOP MARK ACT365SH-T -40°C to 85°C SOP-8 8 TAPE & REEL ACT365SH PIN CONFIGURATION SOP-8 ACT365SH PIN DESCRIPTIONS PIN NAME 1 SW 2,4,7 G 8 BD 6 VDD 5 FB Feedback Pin. Connect this pin to a resistor divider network from the auxiliary winding. 3 CS Current Sense Pin. Connect an external resistor (RCS) between this pin and ground to set peak current limit for the primary switch. The peak current limit is set by (0.396V × 0.9) / RCS. For more detailed information, see Application Information. Innovative PowerTM DESCRIPTION Switch Drive. Switch node for the external NPN transistor. Connect this pin to the external power NPN’s emitter. This pin also supplies current to VDD during startup. Ground. Base Drive. Base driver for the external NPN transistor. Power Supply. This pin provides bias power for the IC during startup and steady state operation. -2- www.active-semi.com Copyright © 2011 Active-Semi, Inc. ACT365 ® Product Brief, 15-Apr-11 Figure 3: Universal VAC Input, 5V/2.1A Output Adapter Table 2: ACT365 Bill of Materials ITEM REFERENCE DESCRIPTION QTY MANUFACTURER 1 2 3 C1, C2 C3 C4 2 1 1 KSC POE KSC 4 C5 1 KSC 5 C6 1 KSC 6 7 8 C9 CY1 BD1 1 1 1 POE UXT PANJIT 9 D5 1 PANJIT 10 D6 1 PANJIT 11 12 13 14 D8 L1 L2 Q1 1 1 1 1 Diodes Amode Tech Amode Tech Huawei 15 F1 1 walter 16 17 18 19 20 21 21 22 23 24 25 26 27 28 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R13 T1 USB Capacitor, Electrolytic, 10µF/400V, 10×16mm Capacitor, Ceramic,1000pF/500V,1206,SMD Capacitor, Ceramic, 10µF/35V,1206,SMD Capacitor, Electrolytic, 1000µF/6.3V, 8 ×16mm Capacitor, Electrolytic, 820µF/6.3V, 6.3 × 16mm Capacitor, Ceramic,1000pF/50V,0805,SMD Safety Y1,Capacitor,1000pF/400V,Dip Bridge Rectifier,D1010S,1000V/1.0A,SDIP Fast Recovery Rectifier, RS1M,1000V/1.0A, RMA Fast Recovery Rectifier,RS1D,200V/1.0A,SMA Diode, Schottky, 40V/10A, PDS1040L, SMD Choke Coil, 330uH, 0410, DIP Axial Inductor, 680uH, ¢6x8mm, DIP Transistor, NPN, 700V,D13005,TO-126 Fuse:1A 250V 3.6*10mm With Pigtail, ceramic tube Chip Resistor, 22Ω, 0805, 5% Chip Resistor, 300k,1206, 5% Chip Resistor, 390Ω,1206, 5% Chip Resistor, 15Ω, 0805, 5% Chip Resistor, 66.5k,0805, 1% Chip Resistor,15.2k,0805, 1% Chip Resistor, 10MΩ, 1206, 5% Chip Resistor, 2.2KΩ, 0805, 5% Chip Resistor, 0.52Ω,1206, 1% Chip Resistor, 330k,0805, 5% Chip Resistor, 1.1k, 0805, 5% Chip Resistor, 10Ω, 0805, 5% Transformer, LP = 1.0mH±7%, EPC17 Double-layer USB Rev:A 1 1 1 1 1 1 2 2 1 1 1 1 1 1 TY-OHM TY-OHM TY-OHM TY-OHM TY-OHM TY-OHM TY-OHM TY-OHM TY-OHM TY-OHM TY-OHM TY-OHM 29 U1 1 Active-Semi Innovative PowerTM IC, ACT365SH-T, SOP-8 -3- www.active-semi.com Copyright © 2011 Active-Semi, Inc.