5.5 Output Inductor Specifications

The current doubler rectification stage uses two custom uncoupled inductors in this reference design. Each one with nominal value of 3.2 uH. Flat wire is used to support high current and better winding window utilization.

Figure 5-17. WE-HCFT Flat Wire THT High Current Inductor
Figure 5-18. WE-HCFT 3.2uH 84A
Table 5-3. Output Inductor Electrical Properties
PropertiesTest ConditionsValue

Manufacturer

—

Würth Elektronik

MFR part number

—

7443763231032

Inductance Nominal

100 kHz/0.1V

3.2 uH

Rated Current

dT = 50K

84A

Saturation Current @ 30%

—

148A

DC Resistance

@ 20⁰C

0.42 mΩ

Figure 5-19. Saturation Current vs Temperature Rise Current Curve