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SP4501 - EL Plus Piezo Driver

General Description

The SP4501 provides designers with both an electroluminescent lamp driver for backlighting and a piezotransducer driver to generate audio alert tones.

Key Features

  • a low power standby mode which draws less than 1µA (typical). The frequency of the internal oscillator is set with a single external resistor. The piezotranducer driver can be driven with the internally generated clock signal or an external clock signal provided by the designer. A single inductor is required to generate the high voltage AC used to drive the EL lamp and the piezotransducer. All input pins are ESD protected with diodes to VDD and VSS. ELEN 1 PZEN 2 ROSC 3 SP4501 14 VDD 13 EL2 12.

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Datasheet Details

Part number SP4501
Manufacturer Sipex
File Size 137.14 KB
Description EL Plus Piezo Driver
Datasheet download datasheet SP4501 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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® SP4501 EL Plus Piezo Driver s Integrated EL Plus Piezo Driver For Portable Electronic Devices s Reduces System Cost, Size & Component Count s +2.2V to +6.0V Battery Operation s A Single External Coil Drives Both the EL Lamp and Piezotransducer Circuitry s Piezotransducer Can Be Driven By an External Clock or Internal Clock s A Single Resistor Controls the Internal Oscillator s DC-to-AC Inverter Produces Up To 200VP-P to Drive EL Lamps s DC-to-AC Inverter Produces Waveform to Drive Piezotransducer s Low Current Standby Mode Draws Less than 1µA APPLICATIONS s PDA's s Pagers s GPS s Hand Held Medical Devices DESCRIPTION The SP4501 provides designers with both an electroluminescent lamp driver for backlighting and a piezotransducer driver to generate audio alert tones.