RDK-251 Power Integrations, RDK-251 Datasheet - Page 36

• 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

10.2 Equipment Used
Chamber:
AC Source: Chroma Programmable AC Source
Wattmeter:
Data Logger: Monogram
10.3 Thermal Result
Load: 5 LED in series (15 V / 350 mA). Ambient of 80°C simulates operation inside
sealed LED replacement enclosure. Supply correctly started up and operated at -30°C
Transformer Winding (T1)
Output Capacitor (C11)
Transformer Core (T1)
Input Inductor (L2)
Output Diode (D5)
Fet (damper) (Q2)
LNK457 (U1)
Bridge (BR1)
Ambient (ºC)
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
Item
Tenney Environmental Chamber
Model No: TJR-17 942
Model No: 6415
Yokogawa Power Meter
Model No: WT2000
SN:1290492
Table 3 – Thermal Data for Dimmable Unit.
50 Hz
90 V
101
101
105
113
110
80
99
96
96
Normal Operation (ºC)
115 V
60 Hz
112
110
105
109
114
126
103
120
80
230 V
50 Hz
104
104
101
107
112
122
101
118
80
265 V
60 Hz
100
106
111
120
101
118
80
97
99
Shorted
Output
265 V
60 Hz
80
92
93
88
88
87
95
81
89
50 Hz
90 V
Cold Start-up
-30
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(PASS)
265 V
60 Hz
-30