RDK-142 Power Integrations, RDK-142 Datasheet - Page 32

• 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

Figure 22 – 12 V Output in Response to 5 V
Note: 5 V Output maintained at full load.
(Waveshape is combination of line ripple and
transient response - see Figure 26)
11.5 Output Over-voltage Protection
The figures below show the performance of the output overvoltage protection circuit when
the control loop was opened.
Figure 24 – 5 V Output in Response to Open Loop
Note: 12 V Output maintained at no load.
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Transient, 90 VAC, 75-100-75%
Load Step.
Output Voltage 50 mV/div.
Output Current 1 A / div, 10 ms / div.
R5 = 5.1 kΩ to Configure Hysteretic
Shutdown.
Output Voltage 2 V/div, 1 s / div.
Figure 23 – 12 V Output in Response to 5 V
Note: 5 V Output maintained at full load.
Figure 25 – 5 V Output in Response to Open Loop
Note: 12 V Output maintained at no load.
Transient, 265 VAC, 75-100-75%
Load Step.
Output Voltage 50 mV/div.
Output Current 1 A / div, 10 ms / div.
R5 = 20 Ω to Configure Latching
Shutdown.
Output Voltage 2 V/div, 1 s / div.
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