RDK-251 Power Integrations, RDK-251 Datasheet - Page 57

• 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

15 Output Current Production Distribution
Figure 82 shows the production distribution of output current for 267 RD251 boards. The
data was gathered using a NH Research 5600 series power supply test system,
commonly used in the power supply industry for production testing of power supplies.
The data is also summarized in table 6.
Measurements were made at room temperature, V
VAC and 230 VAC. This distribution includes variations not only from the LinkSwitch-PL
devices but also all the components of the driver.
From the data it can be seen that the output current could be centered slightly
(-1.9% at 115 VAC) to achieve the 350 mA nominal output current by adjusting the output
current sense resistor value. Therefore to correctly demonstrate the achievable tolerance
of the design, C
Page 57 of 60
P
values were calculated versus C
50
40
30
20
10
80
70
60
50
40
30
20
10
Figure 82 – Output current distribution plot for RD251
0
0
345
348
351
230V, 50Hz, 16V Load: Iout
115V, 60Hz, 16V Load: Iout
230V, 50Hz, 16V Load: Iout
115V, 60Hz, 16V Load: Iout
354
357
in mA
in mA
360
363
Tel: [phone] Fax: [phone]
366
O
PK
369
of 16 V and input voltages of 115
. C
372
P
provides process capability
Mean
StDev
N
Mean
StDev
N
362.0
5.608
356.5
4.122
267
267
Power Integrations
www.powerint.com