LM1819N National Semiconductor, LM1819N Datasheet
LM1819N
Specifications of LM1819N
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LM1819N Summary of contents
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... P O Box 983 Uncasville CT 06382 Tel 203-848-9271 C 1995 National Semiconductor Corporation TL H 5263 Features Self-centering 20 mA outputs Y 12V operation Y Norton amplifier Y Function generator Y Applications Air-core meter driver Y Tachometers Y Ruggedized instruments Y Order Number LM1819M or LM1819N February 1995 TL H 5263 – 1 RRD-B30M115 Printed ...
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... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage V a (pin 13) Power Dissipation (note 1) Electrical Characteristics V Symbol Parameter I Supply Current S V Regulator Voltage REG Regulator Output Resistance ...
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Application Hints (Continued) (a) FIGURE 3 Magnet and pointer position are controlled by the H field generated by the two drive coils In an air-core meter the axle assembly is supported by two nylon bushings The torque exerted on the ...
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Application Hints (Continued) TACHOMETER APPLICATION A measure of the operating level of any motor or engine is the rotational velocity of its output shaft In the case of an automotive engine the crankshaft speed is measured using the units ‘‘revolutions ...
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Equivalent Schematic 5 ...
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Typical Applications FIGURE 5 Typical Pulse-Squaring Circuit for FIGURE 6 Waveforms Encountered in Automotive Tachometer Circuit Voltage Driven Meter with Norton Amplifier Buffer Deflection 54 (V 7)R R (degrees 305 deflection is obtained ...
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Typical Applications (Continued) Deflection 54 (degrees 305 deflection is obtained for inputs 75V Full scale deflection is adjusted by trimming the input voltage Deflection 54R I (degrees) e ...
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Typical Applications (Continued) Level Shifted Voltage Driven Meter Deflection 54V (degrees Inputs 65V deflect the meter through a range 305 Full scale deflection is adjusted by trimming the input voltage 8 ...
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Physical Dimensions inches (millimeters) 14-Lead (0 150 Wide) Molded Small Outline Package JEDEC Order Number LM1819M NS Package Number M14A 9 ...
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... National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Molded Dual-In-Line Package (N) Order Number LM1819N NS Package Number N14A 2 A critical component is any component of a life ...