RDK-251 Power Integrations, RDK-251 Datasheet - Page 15

• Manufacturer Part Number: RDK-251
• Description: KIT REF DESIGN FOR LNK457D
• Manufacturer: Power Integrations
• Series: LinkSwitch®-PLr

Specifications of RDK-251

• Current - Output / Channel: 350mA
• Outputs And Type: 1, Isolated
• Voltage - Output: 12 ~ 18 V
• Features: Dimmable
• Voltage - Input: 90 ~ 265VAC
• Utilized Ic / Part: LNK457D
• Output Voltage: 12 V
• Input / Supply Voltage (max): 265 VAC
• Input / Supply Voltage (min): 90 VAC
• Duty Cycle (max): 39.9 %
• Mounting Style: Through Hole
• Output Current: 350 mA
• Output Power: 5 W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 596-1345

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ACDC_LinkSwitch-PL-
Flb_042910; Rev.1.0;
Copyright Power
Integrations 2010
ILIM_MAX
KDP
LinkSwitch-PL EXTERNAL COMPONENT CALCULATIONS
RSENSE
Standard RSENSE
PSENSE
ENTER TRANSFORMER CORE/CONSTRUCTION VARIABLES
Core Type
Core Part Number
Bobbin Part Number
AE
LE
AL
BW
L
NS
TRANSFORMER PRIMARY DESIGN PARAMETERS
LP
LP Tolerance
NP
ALG
BM
BAC
BP_TARGET
BP
INPUT
EE16
2650
INFO
PC40EE16-Z
OUTPUT
118CPH
BE-16-
0.910
0.829
0.102
EE16
19.20
35.00
0.660
1140
1574
2650
2647
1.51
0.83
130
787
8.6
20
10
39
3
Tel: [phone] Fax: [phone]
nH/T^2
nH/T^2
Gauss
Gauss
Gauss
Gauss
Ohms
Ohms
mm^2
Turns
Turns
UNIT
mm
mm
mH
W
%
A
ACDC_LinkSwitch-PL_Flb_042910;
LinkSwitch-PL Flyback Transformer
Design Spreadsheet
Device peak current
Ratio between off-time of switch and
reset time of core
Output current sense resistor
Closest 1% value for RSENSE
Power dissipated by RSENSE
Core Type
Core Part Number (if Available)
Bobbin Part Number (if available)
Core Effective Cross Sectional Area
Core Effective Path Length
Ungapped Core Effective Inductance
Bobbin Physical Winding Width
Number of primary winding layers
Number of Secondary Turns
Primary Inductance
Tolerance of Primary Inductance
Primary Winding Number of Turns
Gapped Core Effective Inductance
Maximum (BM < 3000 G)
AC Flux Density for Core Loss Curves
(0.5 X Peak to Peak)
Target Peak Flux density.
Recommended value of BP_TARGET <
3700 G.
Peak Flux Density (BP < 3700 G )
Power Integrations
www.powerint.com