HV826

HV826 High Voltage EL Lamp Driver IC Features ► 1.8V to 3.5V operating supply voltage ► DC to AC conversion ► Output voltage regulation ► Adjustable output lamp frequency ► Adjustable converter frequency ► Enable/disable function Applications ► Pagers ► Portable Transceiver ► Cellular phones ► Remote control units ► Calculators General Description The Supertex HV826 is a high voltage driver designed for driving EL lamps. The input supply voltage range is from 1.8V to 3.5V. 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 ±80V. The chip can be enabled/disabled by connecting the resistor on the RSW-Osc pin to VDD/GND. The HV826 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 VDD supply pin. The EL lamp driver frequenc...