ACT510 Product Brief, 18-Feb-14 ActiveQRTM Quasi-Resonant PWM Controller exceeds the latest ES2.0 efficiency standard with good margin. FEATURES • Quasi-Resonant Operation ACT510 integrates comprehensive protection. In case of over temperature, over voltage, winding short, current sense resistor short, open loop and overload conditions, it would enter into auto restart mode including Cycle-by-Cycle current limiting. • Adjustable up to 150kHz Switching Frequency • Accurate OCP/OLP Protection • Integrated Patented Frequency Foldback ACT510 is to achieve no overshoot and very short rise time even with a big capacitive load (4000µF) with the built-in fast and soft start process. Technique • Integrated Patented Line and Primary Inductance Compensation The Quasi-Resonant (QR) operation mode can improve efficiency, reduce EMI and further reduce the components in input filter. • Built-in Soft-Start Circuit • Line Under-Voltage, Thermal, Output Overvoltage, Output Short Protections • • • • ACT510 is ideal for applications up to 60 Watts. Current Sense Resistor Short Protection Figure 1: Transformer Winding Short Protection Simplified Application Circuit 100mW Standby Power Complies with Global Energy Efficiency and CEC Average Efficiency Standards • Tiny SOT23-6 Packages APPLICATIONS • AC/DC Adaptors/Chargers for Cell Phones, Cordless Phone, PDAs, E-books • Adaptors for Portable Media Player, DSCs, Set-top boxes, DVD players, records • Linear Adapter Replacements GENERAL DESCRIPTION The ACT510 is a high performance peak current mode PWM controller. ACT510 applies ActiveQRTM and frequency foldback technique to reduce EMI and improve efficiency. ACT510’s maximum switching frequency is set at 150kHz. Very low standby power, good dynamic response and accurate voltage regulation is achieved with an opto-coupler and the secondary side control circuit. The idle mode operation enables low standby power of 100mW with small output voltage ripple. By applying frequency foldback and ActiveQRTM technology, ACT510 increases the average system efficiency compared to conventional solutions and Innovative PowerTM ActiveQRTM is a trademark of Active-Semi. -1- www.active-semi.com Copyright © 2014 Active-Semi, Inc. ACT510 Product Brief, 18-Feb-14 ORDERING INFORMATION PART NUMBER TEMPERATURE RANGE PACKAGE PINS PACKING METHOD ACT510US-T -40°C to 85°C SOT23-6 6 TUBE & REEL TOP MARK FSET PIN CONFIGURATION SOT23-6 ACT510US PIN DESCRIPTIONS PIN NAME DESCRIPTION 1 CS 2 GND Ground. 3 GATE Gate Drive. Gate driver for the external MOSFET transistor. 4 VDD Power Supply. This pin provides bias power for the IC during startup and steady state operation. 5 VDET Valley Detector Pin. Connect this pin to a resistor divider network from the auxiliary winding to detect zero-crossing points for valley turn on operation. 6 FB Current Sense Pin. Connect an external resistor (RCS) between this pin and ground to set peak current limit for the primary switch. Feedback Pin. Connect this pin to optocouplers’s collector for output regulation. Innovative PowerTM ActiveQRTM is a trademark of Active-Semi. -2- www.active-semi.com Copyright © 2014 Active-Semi, Inc. ACT510 Product Brief, 18-Feb-14 Figure 4: Universal VAC Input, 5V/2A Output Charger Innovative PowerTM ActiveQRTM is a trademark of Active-Semi. -3- www.active-semi.com Copyright © 2014 Active-Semi, Inc. ACT510 Product Brief, 18-Feb-14 Table 1: ACT510 5V10W Bill of Materials ITEM REFERENCE 1 U1 2 C1 DESCRIPTION QTY MANUFACTURER IC, ACT510, SOT23-6 1 Active-Semi Capacitor, Electrolytic, 15µF/400V, 12x16mm 1 RUBYCON 3 C2 Capacitor, Electrolytic, 10µF/400V, 10x15mm 1 RUBYCON 4 C3 Capacitor, Ceramic, 1000pF/500V, 0805,SMD 1 POE 5 C4 Capacitor, Electrolytic, 6.8µF/35V, 5x11mm 1 POE 6 C5 Capacitor, Ceramic, 1000PF/100V, 0805,SMD 1 POE 7 C6 Capacitor, Electrolytic, 330µF/6.3V, 6.3x8mm 1 KSC 8 C7 Capacitor, Electrolytic, 820µF/6.3V, 6.5x15mm 1 KSC 9 C8 Capacitor, Ceramic, 0.1µF/25V, 0805, SMD 1 POE 10 C9 Capacitor, Ceramic, 1000pF/25V, 0805, SMD 1 POE 11 CY1 Safety Y1, Capacitor, 1000pF/400V, Dip 1 UXT 12 BD1 Bridge Rectifier, D1010S, 1000V/1.0A, SDIP 1 PANJIT 13 D2 Fast Recovery Rectifier, RS1G, 200V/1.0A, RMA 1 PANJIT 14 D3 Diode, Schottky, 45V/10A, S10U45S, SMD 1 Diodes 15 D4 Fast Recovery Rectifier, RS1M, 1000V/1.0A, RMA 1 PANJIT 16 D5 Diode,Ultra Fast, LL4148, SMD Open 1 Good-Ark 17 L1 Axial Inductor, 1.5mH, 5*7, Dip 1 SoKa 18 L2 Axial Inductor, 0.55*5T, 5*7, Dip 1 SoKa 19 LF2 CM Filter,R6K, 500µH, 0.55*2 6T 1 SoKa 20 Q1 21 PCB1 22 F1 23 R1,R2 Mosfet Transistor, 4N60, TO-262 1 Infineon PCB, L*W*T=53x29x1.6mm, Cem-1, Rev:A 1 Jintong Fuse, 1A/250V 1 TY-OHM Chip Resistor, 1.0MΩ 1206, 5% 2 TY-OHM 24 R3 Carbon Resistor, 750KΩ, 0805, 5% 1 TY-OHM 25 R4 Chip Resistor, 100Ω, 0805, 5% 1 TY-OHM 26 R5, R9, R15 Chip Resistor, 22Ω, 0805, 5% 3 TY-OHM 27 R6 Chip Resistor, 46.4KΩ, 0805,1% 1 TY-OHM 28 R7 Chip Resistor, 9.1KΩ, 0805, 1% 1 TY-OHM 29 R8 Chip Resistor, 1.37Ω, 1206 , 5% 1 TY-OHM 30 R10, R11 Chip Resistor, 1KΩ, 0805, 5% 2 TY-OHM 31 R12 Chip Resistor, 3KΩ, 0805, 5% 1 TY-OHM 32 R13 Chip Resistor, 10.7KΩ, 0805, 1% 1 TY-OHM 33 R14 Chip Resistor, 10.5KΩ, 0805, 1% 1 TY-OHM 34 R16 Chip Resistor, 10Ω, 0805, 5% 1 TY-OHM 35 R17 Chip Resistor, 2.2KΩ, 0805, 5% 1 TY-OHM 36 T1 Transformer, Lp=0.54mH, EE16 1 37 U2 OPOT PC817C 1 Sharp 38 IC3 TL431 TO-92 1 ST Innovative PowerTM ActiveQRTM is a trademark of Active-Semi. -4- www.active-semi.com Copyright © 2014 Active-Semi, Inc.