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 1.0MΩ and maximum capacitance is 0.1µF. The HV508 has three input supply voltages, HVIN, LVIN and VDD. The output’s amplitude will be either LVIN or HVIN. A logic high on the HVEN pin will make the output voltage HVIN, a logic low will make the output voltage LVIN.
The HV508 is a 45 V liquid crystal shutter driver in an SO‑8 surface‑mount package. It provides two opposite‑phase square‑wave outputs that drive a liquid‑crystal shutter, with selectable LV or HV output levels based on the HV input logic level. The device includes a 100 nF drive capability and a typical response time of 25 µs.
Electrical characteristics include quiescent currents of 10 pA for both HV and LV supplies, operating currents of 2.8 mA (HV) and 380 pA (LV) at 100 Hz, and turn‑on/off times ranging from 16 µs to 40 µs depending on the voltage state. Recommended operating conditions cover an ambient temperature range of –5 °C to +60 °C and supply voltages of 5 V to 45 V.
| Selectable output voltage | LV or HV |
|---|---|
| Drive capability | 100 nF |
| Response time | 25 µs |
| Continuous power dissipation | 700 mW |
| Soldering temperature | +300 °C |
| HV quiescent current | 10 pA |
| LV quiescent current | 10 pA |
The device has a typical response time of 25 µs.
The HV508 provides two outputs that generate square waves of opposite phase.