High-Voltage EL Lamp Driver

The IMP803 is an Electroluminescent (EL) lamp driver with the four EL lamp driving functions on-chip. These are the switch-mode power supply, its high-frequency oscillator, the high-voltage H-bridge lamp driver and its low-frequency oscillator.

Key Features

◆Low Power: 420µA typical VDDcurrent

◆Wide operating voltage range - from 2.0V to 6.5V

◆180V peak-to-peak typical AC output voltage

◆Large output load capability - drive lamps with more than 30nF capacitance

◆Adjustable output lamp frequency for control of lamp color, lamp life, and power consumption

◆Adjustable converter frequency to minimize power consumption

◆Device can be Enabled/Disabled

◆Low quiescent current – 20nA (disabled)

◆High-Voltage CMOS Process

◆MicroSO package option

Applications

◆GPS units/Pagers/Cellular phones

◆PDAs/Handheld computers

◆Safety illumination

◆Portable instrumentation

◆Battery-operated displays

◆LCD modules

◆Toys