RDK-83 Power Integrations, RDK-83 Datasheet - Page 9
![KIT DESIGN REF LINKSWITCH LP](/photos/9/14/91433/power_integrations-rdk-83_sml.jpg)
RDK-83
Manufacturer Part Number
RDK-83
Description
KIT DESIGN REF LINKSWITCH LP
Manufacturer
Power Integrations
Series
LinkSwitch®-LPr
Specifications of RDK-83
Main Purpose
AC/DC, Primary Side
Outputs And Type
1, Isolated
Power - Output
1.6W
Voltage - Output
7.7V
Current - Output
210mA
Voltage - Input
85 ~ 265VAC
Regulator Topology
Flyback
Frequency - Switching
66kHz
Board Type
Bare (Unpopulated) and Fully Populated
Utilized Ic / Part
LNK562, LNK563, LNK564
Lead Free Status / RoHS Status
Not applicable / Not applicable
Other names
596-1128
29-Sept-06
RDR-83 7.7 V, 210 mA Adapter with 10 kV surge withstand
4.4 Output Rectification
The transformer secondary winding is rectified by D4 and filtered by C4. A small preload
resistor (R8) limits the no-load output voltage. Decreasing the value of the preload
resistor will further reduce the no-load output voltage, at the expense of increasing the
no-load input power consumption. In this design, a fast diode (rather than an ultra-fast)
was used for D4 to lower cost and EMI emissions.
Power Integrations
Tel: +1 408 414 9200 Fax: +1 408 414 9201
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