SMD Coupled Inductors for Power Applications with High Efficiency
High-performance EPCOS ERUC23 coupled inductor series (B82559S*)
TDK has expanded its family of flat wire inductors with the high-performance EPCOS ERUC23 coupled inductor series (B82559S*). In such components, two windings share a single magnetic core. The new series comprises six types covering a coupled inductance range from 1.4 μH to 4.1 μH and saturation currents from 50 A to 97 A. The AEC-Q200-qualified and RoHS-compliant components, which can be picked and placed automatically, have dimensions of just 26.8 x 13.8 mm2, with heights varying between 13.7 mm and 14.0 mm depending on the type. They are specified for a wide temperature range from -40 °C to +150°C, and depending on the type, the DC resistance of a single winding is 0.82 mΩ to 1.85 mΩ.
Coupled inductors are very versatile: They are suitable for dual-phase buck and boost converters as well as for buck/boost converters – particularly also for hybrid voltage converters that convert 48 V to 12 V. Since the two windings are coupled, the ripple current is reduced which improves efficiency. Using coupled inductors instead of two individual chokes saves significant space on the circuit board.
Main Features and Benefits
High saturation currents
Low DC resistance
Automatic pick and place, surface mounting
Reduced ripple with improved efficiency in a compact package
Main Application Areas
Dual-phase buck and boost converters as well as buck/boost converters
Hybrid converter for 48 V to 12 V (flying capacitor converters)
Link to the Datasheet
https://www.tdk-electronics.tdk.com/inf/30/db/ind_2008/b82559sxm023.pdf
Link to Rutronik 24
https://www.rutronik24.com/search-result/qs:B82559s/reset:0
