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IMP803 - HIGH-VOLTAGE EL LAMP DRIVER

General Description

Positive voltage supply for the IMP803.

Inductor L may be connected here or to a separate unregulated supply.

Switch-mode resistor pin.

Key Features

  • N Low Power: 420µA typical VDD current N Wide operating voltage range - from 2.0V to 6.5V N 180V peak-to-peak typical AC output voltage N Large output load capability - drive lamps with more than 30nF capacitance N Adjustable output lamp frequency for control of lamp color, lamp life, and power consumption N Adjustable converter frequency to minimize power consumption N Device can be Enabled/Disabled N Low quiescent current.
  • 20nA (disabled) N High-Voltage CMOS Process N MicroSO package.

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Datasheet Details

Part number IMP803
Manufacturer IMP Inc
File Size 162.18 KB
Description HIGH-VOLTAGE EL LAMP DRIVER
Datasheet download datasheet IMP803 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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IMP803 POWER MANAGEMENT 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. The IMP803 drives EL lamps of up to 30nF capacitance to high brightness; EL lamps with capacitances greater than 30nF can be driven, but will be lower in light output. The typical regulated output voltage that is applied to the EL lamp is 180V peak-topeak. The circuit requires few external components, a single inductor, single diode, two capacitors and three resistors. Two of these resistors set the frequency for two internal oscillators. The IMP803 operates over a 2.0V to 6.