Part # LM1819 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM1819 Air-Core Meter Driver


Part Details:

LM1819 February 1995 Air-Core LM1819 Air-Core Meter Driver General Description Features The LM1819 is a function generator driver for air-core Y Self-centering 20 mA outputs (moving-magnet) meter movements A Norton amplifier and Y 12V operation Meter an NPN transistor are included on chip for signal condition- Y Norton amplifier ing as required Driver outputs are self-centering and devel- Y Function generator op g4 5V swing at 20 mA Better than 2% linearity is guar-anteed over a full 305-degree operating range Applications Driver Y Air-core meter driver Y Tachometers Y Ruggedized instruments Typical Application TL H 5263 ­ 1 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 06382Tel 203-848-9271 C1995 National Semiconductor Corporation TL H 5263 RRD-B30M115 Printed in U S A Absolute Maximum RatingsIf Military Aerospace specified devices are required Operating Temperature b40 C to a85 C please contact the National Semiconductor Sales Storage Temperature b65 C to b150 C Office Distributors for availability and specifications Lead Temp (Soldering 10 seconds) 260 C Supply Voltage Va (pin 13) 20V BVCEO


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LM1819.pdf Datasheet