CS4172 Datasheet | Cherry Semiconductor Corporation

Single Air-Core Gauge Driver Description The CS4172 is a monolithic BiCMOS integrated circuit used to translate a digital 10-bit word from a microprocessor/microcontroller to plementary DC outputs. The DC outputs drive an air-core meter monly used in vehicle instrument panels. The 10 bits of data are used to linearly control the quadrature coils of the meter directly with a 0.35¡ resolution and ±1.0¡ accuracy over the full 360¡ range of the gauge. The interface from the microcontroller is by a Serial Peripheral Interface (SPI) patible serial connection using up to a 2MHz shift clock rate. The digital code, which is directly proportional to the desired gauge pointer...