LM1819

LM1819 Air-Core Meter Driver February 1995 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 conditioning as required Driver outputs are self-centering and develop g 4 5V swing at 20 mA Better than 2% linearity is guaranteed over a full 305-degree operating range Features Y Y Y Y Self-centering 20 mA outputs 12V operation Norton amplifier Function generator Applications Y Y Y Air-core meter driver Tachometers Ruggedized instruments Typical Application www.DataSheet.net/ 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 ( g 100 ppm) Components Required for Automotive Load Dump Protection Available from FARIA Co P O Box 983 Uncasville CT 06382 Tel 203-848-9271 C1995 National Semiconductor Corporation TL H 5263 RRD-B30M115 Printed in U S A Datasheet pdf - http://www.DataSheet4U.co.kr/ 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) 20V 1300 mW Operating Temperature Storage Temperature Lead Temp (So...