DAK-21A Power Integrations, DAK-21A Datasheet - Page 11

• Manufacturer Part Number: DAK-21A
• Description: KIT DESIGN ACCELERATOR DPA SW
• Manufacturer: Power Integrations
• Series: DPA-Switch®r

Specifications of DAK-21A

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Isolated
• Voltage - Output: 5V
• Current - Output: 6A
• Voltage - Input: 36 ~ 72V
• Regulator Topology: Buck
• Frequency - Switching: 400kHz
• Board Type: Fully Populated
• Utilized Ic / Part: DPA423, DPA424, DPA425, DPA426
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7.3 Transformer Build Diagram
7.4 Transformer Construction
½ Primary
Basic Insulation
Secondary Winding
Basic Insulation
½ Primary
Outer Wrap
Final Assembly
Page 11 of 32
Tape
Secondary
1
3
3
4
Start at Pin 4. Wind 8 turns of item [3] in 1 layer. Finish on Pin 3.
Use one layer of item [4] for basic insulation.
Start at Pins 5 and 6. Wind 4 quadrifilar turns of item [3]. Finish on Pins 7 and 8.
Use one layer of item [4] for basic insulation.
Start at Pin 3. Wind 7 turns of item [3] in 1 layer. Finish on Pin 1.
Wrap windings with 3 layers of tape item [4].
Assemble and secure core halves. Varnish impregnate item [5].
Figure 5
EP-21 Transformer Build Diagram.
Tel: [phone] Fax: [phone]
Power Integrations, Inc.
7, 8
5, 6
www.powerint.com
½ Primary
½ Primary