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MIC4827 - Low Input Voltage/ 180VPP Output Voltage/ EL Driver

General Description

Micrel’s MIC4827 is a high output voltage, DC to AC converter, designed for driving EL (Electroluminescent) lamps.

The device operates from an input voltage range of 1.8V to 5.5V, making it suitable for 1-cell Li Ion and 2- or 3-cell alkaline/NiCad/NiMH battery applications.

Key Features

  • separate oscillators for the boost- and H-bridge stages. External resistors independently set the operating frequency of each stage. This flexibility allows the EL lamp circuit to be optimized for maximum efficiency and brightness. The MIC4827 uses a single inductor and a minimum number of external components, making it ideal for portable, spacesensitive.

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Datasheet Details

Part number MIC4827
Manufacturer Micrel Semiconductor
File Size 142.60 KB
Description Low Input Voltage/ 180VPP Output Voltage/ EL Driver
Datasheet download datasheet MIC4827 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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MIC4827 Micrel MIC4827 Low Input Voltage, 180VPP Output Voltage, EL Driver Final Information General Description Micrel’s MIC4827 is a high output voltage, DC to AC converter, designed for driving EL (Electroluminescent) lamps. The device operates from an input voltage range of 1.8V to 5.5V, making it suitable for 1-cell Li Ion and 2- or 3-cell alkaline/NiCad/NiMH battery applications. The MIC4827 converts a low voltage DC input to a 180VPP AC output signal that drives the EL lamp. The MIC4827 is comprised of two stages: a boost stage, and an H-bridge, lamp driver, stage. The boost stage steps the input voltage up to +90V.