CS8191 CS8191 Precision Air-Core Tach/Speedo Driver with Short Circuit Protection Description The CS8191 is specifically designed for use with 4 quadrant air-core meter movements.
The IC includes an input comparator for sensing input frequency such as vehicle speed or engine RPM, a charge pump for frequency to voltage conversion, a bandgap reference for stable operation and a function generator with sine and cosine amplifiers that differentially drive the motor coils.
The CS8191 has a higher torque output and better output signal symmetry than other competitive parts (CS289, and LM1819).
It is protected against short circuit and overvoltage (60V) fault conditions.
Enhanced circuitry permits...

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