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FET delivers low-cost wireless charging

The EPC2037 enhancement-mode gallium nitride power transistors (eGaN FETs) are packaged in a 0.9 x 0.9 mm package. The 100VDS, 1A device has a maximum RDS(on) of 550mΩ with 5V applied to the gate. The GaN transistor has high switching frequency, low RDS(on), and what the company says is exceptionally low QG.  It is designed to be driven directly from a digital logic IC, eliminating the need for a separate and costly driver IC.

According to the company, the FET is smaller and with superior switching performance compared with a power MOSFET with similar on-resistance.

As well as wireless charging, the FET can be used in high frequency DC/DC conversion, LiDAR/pulsed power, and class-D audio amplifiers.

A development board, the EPC9051 is available to support in-circuit performance evaluation.


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