SP4491 Datasheet Two Panel Electroluminscent Lamp Driver

Manufacturer: Sipex

Overview: ® SP4491 Two Panel Electroluminscent Lamp Driver s Single IC Drives 2 EL Lamps For Backlighting: • Cell Phone Keypad & LCD • Multi-Color EL Lamps • Multi-Segment EL Lamps s Control Over Lamp-A & Lamp-B For Independent Or Concurrent Operation s +2.2V to +6.

Datasheet Details

Part number	SP4491
Manufacturer	Sipex
File Size	155.65 KB
Description	Two Panel Electroluminscent Lamp Driver
Datasheet	SP4491_SipexCorporation.pdf

General Description

The SP4491 electroluminescent lamp driver provides designers of cell phones PDA's and other handheld, portable electronic devices with an integrated solution for driving two EL lamps independently or concurrently.

The SP4491 reduces system cost, component count and board space requirements over a discrete 2-EL driver approach.

The EL lamps operate in opposite phase so the SP4491 can be easily implemented in applications driving multi-color or multi-segment EL lamps.

Key Features

a low power standby mode which draws less than 1µA. The frequency of the internal oscillator is set using a single external resistor. A single external inductor is required to generate the high voltage AC outputs to drive the EL lamps. All input pins are ESD protected with internal diodes to VDD and VSS.

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