High Voltage EL Lamp Driver IC

The Supertex HV823 is a High-Voltage driver designed for driv- ing EL lamps of up to 50nF. EL lamps greater than 50nF CAN be driven for applications not requiring high brightness. The input supply voltage range is from 2.0V to 9.5V. 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 90V. The chip CAN be enabled by connecting the resis tors on the RSW-Osc pin and the REL-Osc pin to the VDD pin, and disabled when connected to GND. The HV823 has two internal Oscillators a switching MOSFET and a High-Voltage EL lamp driver. The frequency of the switch- ing converter MOSFET is set by an external resistor connected between the RSW-Osc pin and the VDD supply pin. The EL lamp driver frequency is set by an external resistor connected between the REL-Osc pin and the VDD pin. An external inductor is connected between the LX pin and the VDD pin. A 0.01F to 0.1F capacitor is connected between the CS pin and the GND. The EL lamp is connected between the VA and VB pins. By Supertex, Inc.
Part Manufacturer Description Datasheet Samples
HV823LG-G Microchip Technology Inc EL DISPLAY DRIVER, PDSO8
HV823 's PackagesHV823 's pdf datasheet
HV823LG-G
HV823LG




HV823 Pinout, Pinouts
HV823 pinout,Pin out
This is one package pinout of HV823,If you need more pinouts please download HV823's pdf datasheet.

HV823 Application circuits
HV823 circuits
This is one application circuit of HV823,If you need more circuits,please download HV823's pdf datasheet.


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