RDK-193 Power Integrations, RDK-193 Datasheet - Page 11
![KIT REF DESIGN FOR LNK403EG](/photos/28/39/283978/rdk-193_sml.jpg)
RDK-193
Manufacturer Part Number
RDK-193
Description
KIT REF DESIGN FOR LNK403EG
Manufacturer
Power Integrations
Type
Power Factor Correctionr
Specifications of RDK-193
Current - Output / Channel
330mA
Outputs And Type
1, Non-Isolated
Voltage - Output
21V
Features
Dimmable with Standard TRIAC Dimmer, Power Factor Correction
Voltage - Input
90 ~ 265VAC
Utilized Ic / Part
LNK403EG
Input Voltage
90 V to 265 V
Output Voltage
21 V
Product
Power Management Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
LNK403EG
Other names
596-1307
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
RDK-193
Manufacturer:
Power Integrations
Quantity:
135
Layout Considerations
Primary Side Connections
Use a single point (Kelvin) connection at the negative terminal of
the input filter capacitor for the SOURCE pin and bias returns.
This improves surge capabilities by returning surge currents
from the bias winding directly to the input filter capacitor. The
BYPASS pin capacitor should be located as close to the
BYPASS pin and connected as close to the SOURCE pin as
possible. The SOURCE pin trace should not be shared with the
main power MOSFET switching currents. All FEEDBACK pin
Figure 11. RD-193 7 W Layout Example, Top Layer.
www.powerint.com
N
L
RV1
F1
Input EMI Filter
Copper Area for
L1
Heat Sinking
L2
R3
C2
R2
R16
R14
Bulk Capacitor
C9
L3
R24
C14
VR3
components that connect to the SOURCE pin should follow the
same rules as the BYPASS pin capacitor. It is critical that the
main power MOSFET switching currents return to the bulk
capacitor with the shortest path as possible. Long high current
paths create excessive conducted and radiated noise.
Secondary Side Connections
The output rectifier and output filter capacitor should be as
close as possible. The transformer’s output return pin should
have a short trace to the return side of the output filter capacitor.
C3
VR1
C8
Clamp
D8
R10
D1
FL1
U1
C6
C12
BYPASS Pin
LNK403EG
Capacitor
T1
C7
2
LNK403-409EG/413-419EG
1
C5
Transformer
6
V
3
4
C4
5
V
Capacitors
Output
Filter
PI-5987-060110
Rev. B 11/10
11