Power Factor Controllers
Minimize THD and Maximize PF and Efficiency. . .
IEC 1000-3-2 standards set regulations to limit the harmonics injected into the AC line by any equipment drawing
more than 75 W of input power for class D equipment (TV sets, PC monitors, desktop PCs) and 25 W for class C
equipment (lighting). A front-end Power Factor Controller is then required in these power supplies. Adding such a
stage can lead to difficulties in meeting other regulatory requirements (standby and active power) unless you make
judicious design choices.
Above challenges have been fully understood by ON Semiconductor which steadily releases innovative PFC controllers matching designers’
wishes of simple, compact and robust solutions. These new PFCs represent perfect solutions in various applications such as Flat TVs, ATX
Power supply & Servers, Telecom and Industrial SMPS where cost will, of course, always be a primary factor, but where you can also base
differentiation on performance.
Key Features & Benefits
~
Solutions for both Critical Conduction Mode and Continuous
Conduction Mode
i
Design flexibility and better applications coverage
~
Follower Boost Mode Capability
i
Flexibility & Compactness as well as Cost reduction
~
Fixed frequency & Synchronization capability
i
Smoother EMI & Flexibility
U1
KBU6K
C15
680nF
C12
4.7nF Type=Y1
MC
R2
470k
C9
100nF
C1
100nF
Type=X2
~
Low consumption during start-up and shutdown mode
i
Help Meet Low Stand-by Power Requirements
~
Several Integrated protections such as
•
Over Current and Voltage Limitations
•
In-rush Current Detection
•
Feed-back loop Failure Detection
i
Design flexibility and rugged design
L1
600 H
R5
680k
R4
4.7M
R8
680k
R9
560k
12V
C2*
100 F
C3
100nF
C4
22 F
M1
SPP20N60S5
D1
CS004060
1
2
3
NCP1653
8
7
6
5
R3
56k
C5
1nF
R1
4.5
R10
10k
390V
C13
4.7nF
Type
=Y1
C8
1nF
C6
1nF
L4
150 H
C7
100nF
4
R6
2.85k
C11
1 F
Type
=X2
L
N EARTH
90-265VAC
NCP1653
Demo Board
R7
0.1
*C2 Type = Snap-In 450V
NCP1653 – 300 W PFC Front-Stage
POWER
FACTOR
CONTROLLERS
L
I
G
H
T
I
N
G
Device
MC33260
MC33262
MC33368
NCP1601
NCP1606
NCP1603
NCP1651
NCP1652
NCP1653
NCP1650
Max
Output
Power
(W)
300
200
300
400
200
250
250
250
1000
5000
In-Rush Detect
Current Limit
Power Limit
HV Start-Up
Brown-Out
Topology
Boost
Boost
Boost
Boost
Boost
Combo Flyback
5
1-Stage Flyback
1-Stage Flyback
Boost
Boost
Mode
CRM
6
CRM
6
CRM
6
CRM
6
/DCM
2
CRM
6
CRM
6
/DCM
2
CCM
1
/DCM
2
CCM
1
/DCM
2
CCM
1
/DCM
2
CCM
1
/DCM
2
Operation Mode
Voltage
Current
Current
Fixed Freq Voltage
Voltage
Current
Average Current
Average Current
Average Current
Average Current
Shutdown
4
4
4
4
4
4
OVP
3
UVP
4
Package(s)
SOIC-8, PDIP-8
SOIC-8, PDIP-8
SOIC-16, PDIP-16
SOIC-8, PDIP-8
SOIC-8, PDIP-8
SOIC-16
SOIC-16
SOIC-16
SOIC-8, PDIP-8
SOIC-16
4
Yes
Is Your Input
Power Above
25 W?
No
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
1. Continuous Conduction Mode 2. Discontinuous Conduction Mode 3. Overvoltage Protection 4. Undervoltage Protection 5. NCP1603 – combination of NCP1601 & NCP1203 6. Critical Conduction Mode
Page 3
Power Conversion Solutions
ONSEMI [ ON SEMICONDUCTOR ]
