ELM412 Datasheet PDF (Piezo Element Driver)

ELM412 - Piezo Element Driver

Description

The ELM412 is an 8 pin oscillator circuit for driving piezo-electric elements.

With the exception of one external resistor, all of the circuitry required to drive a typical piezo ‘bender’ is contained within this chip.

Features

Low power CMOS design.
Wide supply range - 3.0 to 5.5 volt operation.
No external timing elements required.
Generates eight common piezo frequencies.
Bridged output for greater audio power.
Modified waveform for reduced harmonics Connection Diagram PDIP and SOIC (top view) VDD F2 F1 F0 1 2 3 4 8 7 6 5 VSS Out1 Out2 Enable.

Datasheet Details

Part number	ELM412
Manufacturer	ELM
File Size	40.69 KB
Description	Piezo Element Driver
Datasheet	ELM412 Datasheet
Additional preview pages of the ELM412 datasheet.

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Full PDF Text Transcription

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ELM412 Piezo Element Driver Description The ELM412 is an 8 pin oscillator circuit for driving piezo-electric elements. With the exception of one external resistor, all of the circuitry required to drive a typical piezo ‘bender’ is contained within this chip. This circuit allows the user to select one of eight possible operating frequencies by way of three logic level inputs. These eight frequencies represent some of the more common resonant frequencies used for piezo elements. If desired, the frequency can be continually varied by the controlling circuit. The output of the ELM412 uses a bridge configuration to obtain maximum audio drive for a given power supply level. A single input pin is all that is required to gate the output on and off.

Published: Dec 20, 2013 |