High-current power inductor with low DC resistance for automotive applications

High-current power inductor with low DC resistance for automotive applications

New Products |
By Christoph Hammerschmidt

TDK Corp. has introduced a new power inductor for use in power supplies in automotive electronic systems. The VLS5030EX-D type is part of the VLS-EX-D series of wound ferrite power inductors for automotive power supplies. These compact components offer good DC override characteristics at temperatures up to 150℃. These components are suitable for headlights, airbags, electric power steering (EPS), advanced driver assistance systems (ADAS), engine control units (ECUs) and various other applications.

The number of ECUs for the electrification of various vehicle control functions as well as for infotainment, autonomous driving and other applications has increased. The compact power inductors support automotive PoC (Power over Coax) implementations with excellent DC overlay characteristics for data transmission and power supply. They thus meet the requirements of driver assistance systems (ADAS), for example, which use LVDS (Low Voltage Differential Signaling) transmissions. In addition, as the ICs become more complex, a higher current is required. The VLS-EX-D series helps to meet these requirements.

The new VLS-EX-D series enables a higher rated current compared to the standard VLS-EX-H series. These improvements are achieved by using TDK’s innovative metallic magnet material for the magnetic shielding function. For the VLS5030EX-D inductor, the Isat is 3.3 A at 4.7 μH, which is an increase of about 6% over standard components of the same size (5.3 x 5.0 x 3.0 ㎣ (L x W x H)). In addition, thanks to the welding method used to connect the wire winding to the external terminals, high reliability is achieved during reflow processes and when used in high-temperature environments. The product meets the requirements of AEC-Q200 Rev D for automotive applications.

Mass production of these new inductors has already begun. TDK plans to further expand the VLS-EX-D series product portfolio to meet the needs for a wide range of automotive applications with a focus on ADAS and to meet customer requirements.

More information here.

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