SP4491UEB Datasheet

IC型號：
SP4491UEB
PDF描述：
Two Panel Electroluminscent Lamp Driver
文件大小：
157.41KB
PDF頁數(shù)：
13頁
芯片廠家：
SIPEX

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SP4491

Two Panel Electroluminscent Lamp Driver

Single IC Drives 2 EL Lamps

For Backlighting:

鈥?/div>

Cell Phone Keypad & LCD

鈥?/div>

Multi-Color EL Lamps

鈥?/div>

Multi-Segment EL Lamps

Control Over Lamp-A & Lamp-B For

Independent Or Concurrent Operation

+2.2V to +6.0V Battery Operation

Single Coil Used To Generate High

Voltage AC Outputs

Low Power Standby Mode Draws 100nA

Typical Current

A Single Resistor Controls the Internal

Oscillator

DC-AC Inverter Produces Up To 220V

Space-Saving 10MSOP Package

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. The SP4491 operates from a +2.2V to +6.0V battery source. The

device features a low power standby mode which draws less than 1碌A. 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 V

and V

SS.

APPLICATIONS

Cellular Phones

PDA's

Handheld GPS Units

Security Systems

POS Terminals

ELEN1

OSC

ELEN2

SP4491

EL1

EL2

ELcommon

CAP

COIL

Rev. 12/19/00

SP4491 Two Panel Electroluminescent Lamp Driver

型號

版本

描述

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