ACT411 - Active-Semi

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.