(PDF) LM1819M Datasheet - Air-Core Meter Driver

Número de pieza	LM1819M
Descripción	Air-Core Meter Driver
Fabricantes	National Semiconductor
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No Preview Available ! www.DataSheet4U.com LM1819 Air-Core Meter Driver General Description The LM1819 is a function generator driver for air-core (moving-magnet) meter movements A Norton amplifier and an NPN transistor are included on chip for signal condition- ing as required Driver outputs are self-centering and devel- op g4 5V swing at 20 mA Better than 2% linearity is guar- anteed over a full 305-degree operating range Features Y Self-centering 20 mA outputs Y 12V operation Y Norton amplifier Y Function generator Applications Y Air-core meter driver Y Tachometers Y Ruggedized instruments Typical Application February 1995 FIGURE 1 Automotive Tachometer Application Circuit shown operates with 4 cylinder engine and deflects meter pointer (270 ) at 6000 RPM Order Number LM1819M or LM1819N See NS Package Number M14A or N14A TRW Type X463UW Polycarbonate Capacitor RN60D Low TC Resistor (g100 ppm) Components Required for Automotive Load Dump Protection Available from FARIA Co P O Box 983 Uncasville CT 06382 Tel 203-848-9271 TL H 5263 – 1 C1995 National Semiconductor Corporation TL H 5263 RRD-B30M115 Printed in U S A 1 page Equivalent Schematic 5 5 Page

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PDF LM1819M Data sheet ( Hoja de datos )