RDK-252 Power Integrations, RDK-252 Datasheet - Page 9

• Manufacturer Part Number: RDK-252
• Description: KIT REF DESIGN DG CAPZERO
• Manufacturer: Power Integrations
• Series: CAPZero™r
• Type: Other Power Managementr

Specifications of RDK-252

• Main Purpose: Automatic X Capacitor Discharge
• Embedded: No
• Utilized Ic / Part: CAP014DG, CAP002DG, CAP012DG
• Primary Attributes: Low No-Load Input Power (
• Secondary Attributes: Surge Testing to EN6100-4-5 Class 4
• Input Voltage: 85 V to 264 V
• Board Size: 38.1 mm x 25.4 mm
• Product: Power Management Modules
• Dimensions: 38.1 mm x 25.4 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: CAP014DG
• Other names: 596-1313

14-Apr-10
7 No-load Input Power Performance
To correctly measuring the no-load input power of the CAPZero device itself the X
capacitor and MOV should be removed from the board. The presence of the X capacitor
causes reactive currents which flow in the input cables. This results in a real power loss
component which is them measured by the AC power meter. Therefore to eliminate this
error when measuring the power consumption of the CAPZero IC the capacitor should be
removed.
The MOV has a small leakage current which also generates a power loss measured by
the power meter so again should be removed to correctly measure the CAPZero
consumption.
To illustrate these effects power consumption was measured with and without the
capacitor and MOV fitted.
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100 V / 50 Hz
115 V / 60 Hz
132 V / 60 Hz
230 V / 50 Hz
240 V / 50 Hz
265 V / 50 Hz
85 V / 50 Hz
Input Line
MOV and X
Capacitor
Removed
(mW)
1.5
1.7
2.3
4.1
4.6
2
4
RDR-252 - CAPZero Reference Design Board
Removed
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(mW)
MOV
1.5
1.9
2.3
2.8
5.7
6.1
7.5
Components
Power Integrations
www.powerint.com
Present
(mW)
2.8
4.8
All
11
12
2
3
8