Features: ` 2.7V to 6V Input Voltage` -8.0V to -23.6V Adjustable Output Voltage` 40mA Output Current with +5V Input15mA Output Current with +3V Input` Easy Interface to P` Pushbutton Control of Output VoltageDescriptionThe MAX749 LCD bias supply produces a variable egative output voltage when powe...
MAX749: Features: ` 2.7V to 6V Input Voltage` -8.0V to -23.6V Adjustable Output Voltage` 40mA Output Current with +5V Input15mA Output Current with +3V Input` Easy Interface to P` Pushbutton Control of Outp...
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The MAX749 LCD bias supply produces a variable egative output voltage when powered by a +3V to +5V upply. The MAX749 evaluation kit (EV kit) has a -8.0V o -23.6V adjustable output voltage. This is the typical ange for driving the backplane of a liquid crystal display LCD).
Two pushbutton switches, located on the EV kit's printed ircuit board, control the output voltage. One switch onnects to the CTRL pin and the other to the ADJ pin.
Logic signals of MAX749 from an external controller may be connected o the board for optional output voltage control.