RDK-251 Power Integrations, RDK-251 Datasheet - Page 7

• 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

2 Power Supply Specification
The table below represents the minimum acceptable performance of the design. Actual
performance is listed in the results section.
Page 7 of 60
Input
Voltage
Frequency
Output
Output Voltage
Output Current
Output Power
Efficiency
Dimmable
configuration
Non-dimmable
configuration
Environmental
Conducted EMI
%ATHD 230 V
Safety
Line Surge
Ring Wave (100 kHz)
Dimensions
Board Level Ambient
Temperature
Differential Mode
(L1-L2)
Differential Mode
(L1-L2)
Description
Symbol
V
V
V
I
I
V
P
T
IN(NOM)
OUT(N)
OUT(E)
f
IN(EXT)
IN(ND)
LINE
AMB
OUT
OUT

Min
322
315
-20
90
47
12
0
Meets CISPR22B / EN55015
115/230
50/60
Typ
350
350
15
73
78
5
Non-isolated
< 18
2500
Max
265
300
378
385
500
18
80
63
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Units
VAC
VAC
VAC
mA
mA
Hz
o
W
%
V
V
V
C
Nominal line voltages
Normal operating range
Voltage range over which no damage to
the supply shall occur
Thermal results were verified with 15 V
LED string
(+/-8%) at V
equilibrium
(+/-10%) Extended 90-265 VAC Input, -
20
Mounted into A19 metal finned enclosure
and measured on ground plane (to
simulate end application)
1.2/50 s surge, IEC 1000-4-5, Series
0.83” (20.86 mm) x 2.52” (63.9 mm)
o
C to 80
Free convection, sea level
Power Integrations
Measured at P
www.powerint.com
Differential Mode: 2 
Series Impedance:
200 A short-circuit
o
IN(NOM)
Differential Mode
C
Comment
Impedance:
after reaching thermal
OUT
25
o
C