High Voltage EL Lamp Driver For Low Noise Applications

The Supertex HV859 is a high voltage driver designed for driving Electroluminescent (EL) lamps of up to 5 square inches. The input supply voltage range is from 1.8V to 5.0V. The device uses a single inductor and a minimum number of passive components. The nominal regulated output voltage that is applied to the EL lamp is 105V. The chip CAN be enabled/disabled by connecting the resistor on R to V / SW-Osc DD ground. The HV859 has two internal Oscillators a switching MOSFET and a high voltage EL lamp driver. The frequency for the switching MOSFET is set by an external resistor connected between the R pin and the supply pin V . The EL lamp SW-Osc DD driver frequency is set by an external resistor connected between R pin and the V pin. An external inductor is EL-Osc DD connected between the L and V pins or V for split supply X DD IN applications. A 0.003-0.1F capacitor is connected between C and ground. The EL lamp is connected between V and S A V . By Supertex, Inc.
HV859 's PackagesHV859 's pdf datasheet

HV859 Pinout, Pinouts
HV859 pinout,Pin out
This is one package pinout of HV859,If you need more pinouts please download HV859's pdf datasheet.

HV859 Application circuits
HV859 circuits
This is one application circuit of HV859,If you need more circuits,please download HV859's pdf datasheet.

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