ACT510 ACTIVE-SEMI | Alldatasheet
Document overview
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Technical content
Innovative PowerTM - 1 - www.active-semi.com Copyright © 2012 Active-Semi, Inc. ActiveQRTM is a trademark of Active-Semi. Product Brief, 05-Dec-12 ActiveQRTM Quasi-Resonant PWM Controller
FEATURES
- Quasi-Resonant Operation
- Adjustable up to 150kHz Switching Frequency
- Accurate OCP/OLP Protection
- Integrated Patented Frequency Foldback Technique
- Integrated Patented Line and Primary Inductance Compensation
- Built-in Soft-Start Circuit
- Line Under-Voltage, Thermal, Output Over- voltage, Output Short Protections
- Current Sense Resistor Short Protection
- Transformer Short Winding Protection
- 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 burst mode operation enables low standby power of 100mW with small output voltage ripple. By applying frequency foldback and ActiveQR TM technology, ACT510 increases the average system efficiency compared to conventional solutions and exceeds the latest ES2.0 efficiency standard with good margin. ACT510 integrates comprehensive protection. In case of over temperature, over voltage, short winding, short current sense resistor, open loop an d overload conditions, it would enter into auto restart mode including Cycle-by-Cycle current limiting. ACT510 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. The Quasi-Resonant (QR) operation mode can effectively improve efficiency, reduce the EMI noise and further reduce the components in input filter. ACT510 is idea for application up to 60 Watt. Figure 1: Simplified Application Circuit ACT510
Product Brief, 05-Dec-12 Innovative PowerTM - 2 - www.active-semi.com Copyright © 2012 Active-Semi, Inc. ActiveQRTM is a trademark of Active-Semi. PIN CONFIGURATION PIN DESCRIPTIONS PART NUMBER TEMPERATURE RANGE PACKAGE PINS PACKING METHOD TOP MARK ACT510US-T -40°C to 85°C SOT23-6 6 TUBE & REEL FSET SOT23-6 ACT510US
ORDERING INFORMATION
1 CS Current Sense Pin. Connect an external resistor (RCS) between this pin and ground to set peak current limit for the primary switch. 2 GND Ground. 3 GATE Gate Drive. Gate driver fo r the external MOSFET transistor. 4 VDD Power Supply. This pin provides bias power fo r 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 Feedback Pin. Connect this pin to opt ocouplers’s collector for output regulation.
Product Brief, 05-Dec-12 Innovative PowerTM - 3 - www.active-semi.com Copyright © 2012 Active-Semi, Inc. ActiveQRTM is a trademark of Active-Semi. Figure 4: Universal VAC Input, 5V/2A Output Charger
Product Brief, 05-Dec-12 Innovative PowerTM - 4 - www.active-semi.com Copyright © 2012 Active-Semi, Inc. ActiveQRTM is a trademark of Active-Semi. ITEM REFERENCE DESCRIPTION QTY MANUFACTURER
1 U1 IC, ACT510, SOT23-6 1 Active-Semi
2 C1 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 Mosfet Transistor, 4N60, TO-262 1 Infineon
21 PCB1 PCB, L*W*T=53x29x1. 6mm, Cem-1, Rev:A 1 Jintong
22 F1 Fuse, 1A/250V 1 TY-OHM
23 R1,R2 Chip Resistor, 1.0M Ω 1206, 5% 2 TY-OHM
24 R3 Carbon Resistor, 750K Ω, 0805, 5% 1 TY-OHM
25 R4 Chip Resistor, 100 Ω, 0805, 5% 1 TY-OHM
26 R5, R9, R15 Chip Resistor, 22 Ω, 0805, 5% 3 TY-OHM
27 R6 Chip Resistor, 46.4K Ω, 0805,1% 1 TY-OHM 28 R7 Chip Resistor, 9.1K Ω, 0805, 1% 1 TY-OHM 29 R8 Chip Resistor, 1.37 Ω, 1206 , 5% 1 TY-OHM
30 R10, R11 Chip Resistor, 1K Ω, 0805, 5% 2 TY-OHM
31 R12 Chip Resistor, 3K Ω, 0805, 5% 1 TY-OHM
32 R13 Chip Resistor, 10.7K Ω, 0805, 1% 1 TY-OHM 33 R14 Chip Resistor, 10.5K Ω, 0805, 1% 1 TY-OHM
34 R16 Chip Resistor, 10 Ω, 0805, 5% 1 TY-OHM
35 R17 Chip Resistor, 2.2K Ω, 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
Table 1: ACT510 5V10W Bill of Materials