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IMP527 - SINGLE CELL BATTERY POWERED ELECTROLUMINESCENT LAMP DRIVER/INVERTER

General Description

Positive voltage supply for the IMP527.

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

Switch-mode resistor pin.

Key Features

  • N Wide operating voltage range - from 0.9V to 2.5V N Simple design requires few passive components N 180V peak-to-peak typical AC output voltage N Adjustable output frequency controls lamp color and power consumption N Adjustable converter frequency minimizes circuit power consumption N Disable mode extends battery life N Disable current 1µA typical N Compact MicroSO package option.

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Datasheet Details

Part number IMP527
Manufacturer IMP Inc
File Size 149.98 KB
Description SINGLE CELL BATTERY POWERED ELECTROLUMINESCENT LAMP DRIVER/INVERTER
Datasheet download datasheet IMP527 Datasheet

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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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IMP52 7 POWER MANAGEMENT Single Cell Battery Powered Electroluminescent Lamp Driver/Inverter The IMP527 is an Electroluminescent (EL) lamp driver designed for systems that must operate down to 1 volt and below. The input supply voltage range is 0.9V to 2.5V. Typical output lamp drive voltage is 180V. All four EL lamp-driving functions are on-chip. These are the switchmode power supply, its high-frequency oscillator, the high-voltage H-bridge lamp driver and its low-frequency oscillator. EL lamps of up to 6nF capacitance can be driven to high brightness. The circuit requires few external components; one inductor, one diode, one capacitor and two resistors. The resistors set the frequency for the two oscillators. A disable mode puts the chip into a low current-drain state.