Does EPC have application information on the use of eGaN FETs in backlight applications?
The main question here would be the choice of topology to be employed. The EPC9001C and EPC9078 development boards can be used to create LED backlighting solutions with very high contrast ratio, but are designed for buck / half-bridge type topologies. For anyone experienced in the art it is possible to operate this ‘backwards’ as a synchronous boost – noting that the input PWM will now be complimentary to what is required. Care should be taken in doing so as the output bus voltage can easily be boosted above the rated maximum voltage.
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