RDK-142 Power Integrations, RDK-142 Datasheet - Page 31

• Manufacturer Part Number: RDK-142
• Description: KIT REF DESIGN TOP HX FOR TOP258
• Manufacturer: Power Integrations
• Series: TOPSwitch®-HXr

Specifications of RDK-142

• Mfg Application Notes: TOPSwitch-HX Family Appl Note
• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 2, Non-Isolated
• Power - Output: 35W
• Voltage - Output: 5V, 12V
• Current - Output: 2.2A, 2A
• Voltage - Input: 90 ~ 265VAC
• Regulator Topology: Flyback
• Frequency - Switching: 30kHz
• Board Type: Fully Populated
• Utilized Ic / Part: TOP258
• Product: Accessories & Kits
• Silicon Manufacturer: Power Integrations
• Kit Application Type: Displays
• Application Sub Type: LCD Monitor
• Kit Contents: Samples, Fully Functional Reference Board And Complete Documentation
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 596-1193

11.4 Load Transient Response (75% to 100% Load Step)
In the figures shown below, signal averaging was used to better enable viewing of the
load transient response. The oscilloscope was triggered using the load current step as a
trigger source. 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 20 – 5 V Transient Response, 90 VAC,
Note
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12 V Output maintained at full load.
75-100-75% Load Step.
Output Voltage 20 mV/div.
Output Current 1 A / div, 10 ms / div.
Figure 21 – 5 V Transient Response, 265 VAC,
Note
:
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12 V Output maintained at full load.
75-100-75% Load Step.
Output Voltage 20 mV/div.
Output Current 1 A / div, 10 ms / div.
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