Four-ChannelBridge(BTL)Driver

Overview TheLA6579Hisa4-channelbridge(BTL)driverforCD-R. Functions •Bridge-connected(BTL)poweramplifierincorporatingfourchannels •IOmax1A •Levelshiftcircuitincorporated •MUTEcircuit(allcircuitsON/OFF) •Highoutputvoltage(dynamicrange)(6.5V:

1.8V,40nsLowPowerOpen-DrainOutputComparator

Features •PropagationDelayatVDD=5.5V: 40ns(typical)High-to-Low •LowQuiescentCurrent: 70μA(MaximumperComparator) •LowInputOffsetVoltage:±7mV(Maximum) •SupplyVoltageRange:1.8Vto5.5V •Rail-to-RailInput •Power-onReset(POR) •ExtendedTemperatureRange:-40°C

GeneralPurposeLCDDriverIC

DESCRIPTION PT6579isanLCDDriverICwhichcandriveupto200segments.Itcanbeusedforfrequencydisplayinmicroprocessor-controlledradioreceiverandinotherdisplayapplications.PT6579supportsboth1/3duty, and1/4dutydrive.Pinassignmentandapplicationcircuitareoptimiz

NegativeSignalSwing,Sub-ohm,DualSPDTSingleSupplySwitch

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GeneralPurposeLCDDriverIC

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