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.

Features
■ Direct Sensor Input
■ High Output Torque
■ Wide Output Voltage Range
■ High Impedance Inputs
■ Accurate down to 10V VCC
■ Fault Protection
    Overvoltage
    Short Circuit
■ Low Voltage Operation