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IMP528 - HIGH-VOLTAGE EL LAMP DRIVER

General Description

Positive voltage supply for the IMP528.

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

Switch-mode resistor pin.

Key Features

  • N N N N N N N N N 220V peak-to-peak typical AC output voltage Low Power: 420µA typical VDD current Wide operating voltage range - from 2.0V to 6.5V Large output load capability - drives lamps with more than 50nF capacitance Eliminates external protection resistor in series with EL lamp Adjustable output lamp frequency for control of lamp color, lamp life, and power consumption Adjustable converter frequency to minimize power consumption High-Voltage CMOS Process MicroSO package option Applicati.

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Datasheet Details

Part number IMP528
Manufacturer IMP Inc
File Size 134.15 KB
Description HIGH-VOLTAGE EL LAMP DRIVER
Datasheet download datasheet IMP528 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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IMP528 POWER MANAGEMENT High-Voltage EL Lamp Driver – 220 VPP Drive The IMP528 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 IMP528 drives EL lamps of up to 50nF capacitance to high brightness; EL lamps with capacitances greater than 50nF can be driven, but will be lower in light output. The typical regulated output voltage that is applied to the EL lamp is 220V peak-topeak. The circuit requires few external components; a single inductor, single diode, two capacitors and two resistors. Two of these resistors set the frequency for two internal oscillators.