Low Noise, High Voltage EL Lamp Driver IC

The Supertex HV857L is a low noise, high voltage driver designed for driving Electroluminescent (EL) lamps of up to , ve square inches. It is the low noise version of the EL lamp driver HV857. 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 95V. The chip CAN be enabled/disabled by connecting the resistor on RSW-Osc to VDD/ground. The HV857L 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 RSW-Osc pin and the supply pin, VDD. The EL lamp driver frequency is set by an external resistor connected between the REL-Osc and VDD pins. An external inductor is connected between the LX and VDD pins, or VIN for split supply applications. A 0.003-0.1F capacitor is connected between CS and ground. The EL lamp is connected between the VA and VB pins. By Supertex, Inc.
HV857L 's PackagesHV857L 's pdf datasheet

HV857L Pinout, Pinouts
HV857L pinout,Pin out
This is one package pinout of HV857L,If you need more pinouts please download HV857L's pdf datasheet.

HV857L Application circuits
HV857L circuits
This is one application circuit of HV857L,If you need more circuits,please download HV857L's pdf datasheet.

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