HV508

The Supertex HV508 is a 45V liquid crystal shutter driver in an SO- 8 surface mount package. It consist of two outputs that provide square waves of opposite phase. The liquid crystal shutter is connected between the two outputs. Its equivalent load can be approximated as a resistor in parallel with a capacitor. Minimum resistance is 1.0M and maximum capacitance is 0.1F.

The HV508 has three input supply voltages, HV_IN, LV_IN, and VDD. The output's amplitude will be either LVIN or HV_IN. A logic high on the HV_EN input will set the output to operate from the HV_IN supply. A logic low on the HV_EN input will set the output to operate from the LV_IN supply. The output frequency is set by the logic input frequency applied on the POL input.