A constant current output sink or source eliminates a current limiting series resistor for a light emitting diode (LED) and maintains a constant light intensity from the LED for all operating and manufacturing variables of a digital device since the current through the LED is maintained at a constant value. The constant current output sink or source may be programmable for selection of a constant current value from a plurality of constant current values available.
申请公布号
WO2010068836(A1)
申请公布日期
2010.06.17
申请号
WO2009US67625
申请日期
2009.12.11
申请人
MICROCHIP TECHNOLOGY INCORPORATED;BROWN, WARD, R.;YACH, RANDY