Patent ID: 7332935

Claim:
A driver circuit comprising: an output terminal; a source input terminal configured to couple to a first switch and configured to receive a source control signal; a voltage control circuit configured to drive one of the terminals of the first switch to a source voltage; wherein, in response to receiving an asserted source control signal, the first switch is turned on and the voltage control circuit is operable to drive the output terminal of the driver circuit to the source voltage; a source current mirror coupled to the first switch and configured to regulate a source current provided to the output terminal of the driver circuit when the first switch is turned on; a sink input terminal configured to couple to a second switch and configured to receive a sink control signal, wherein, in response to receiving an asserted sink control signal, the second switch is turned on and the output terminal of the driver circuit is driven to a sink voltage; and a sink current mirror coupled to the second switch and configured to regulate a sink current provided to output terminal of the driver circuit when the second switch is turned on.