RDK-115 Power Integrations, RDK-115 Datasheet - Page 26

• Manufacturer Part Number: RDK-115
• Description: KIT REFERENCE DESIGN W/TN376PN
• Manufacturer: Power Integrations
• Series: TinySwitch®-PKr

Specifications of RDK-115

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 4, Isolated
• Power - Output: 7.5W
• Voltage - Output: 3.3V, 5V, 12V, -12V
• Current - Output: 500mA, 500mA, 250mA, 30mA
• Voltage - Input: 85 ~ 265VAC
• Regulator Topology: Flyback
• Frequency - Switching: 132kHz
• Board Type: Fully Populated
• Utilized Ic / Part: TNY376
• Product: Accessories & Kits
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 596-1145

11.3 Drain Voltage and Current Start-up Profile
Figure 20 – 85 VAC Input and Maximum Load.
11.4 Load Transient Response
In the figures shown below, signal averaging was used to better enable viewing the load
transient response. Since the output switching and line frequency occur essentially at
random with respect to the load transient, contributions to the output ripple from these
sources will average out, leaving the contribution only from the load step response.
Figure 22 – Transient Response, 115 VAC, +12 V
Upper: I
Lower: V
0.25 A-0.64 A-0.25 A Load Step. All
other outputs are at full load.
Bottom Trace: 5 V Output at 50 mV / div.
Next Trace: 3.3 V Output at 50 mV / div.
Next Trace: +12 V Output at 0.5 V / div.
Top Trace: -12 V Output at 0.5 V / div.
1 ms / div
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DRAIN
DRAIN
.
, 0.5 A / div.
, 100 V & 1 ms / div.
Figure 21 – 265 VAC Input and Maximum Load.
Figure 23 – Transient Response, 230 VAC, +12 V
Upper: I
Lower: V
0.25 A-0.64 A-0.25 A Load Step. All
other outputs are at full load.
Bottom Trace: 5V Output at 50 mV / div.
Next Trace: 3.3V Output at 50 mV / div.
Next Trace: +12 V Output at 0.5 V / div.
Top Trace: -12 V Output at 0.5 V / div.
1 ms / div.
DRAIN
DRAIN
, 0.5 A / div.
, 200 V & 1 ms / div.
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