Single Air−Core Gauge Driver

   The CS4192 is a monolithic BiCMOS integrated circuit used to translate a digital 10−bit word from a microprocessor/microcontroller to complementary DC outputs. The DC outputs drive an air−core meter commonly 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 ±1.2° accuracy over the full 360° range of the gauge. The interface from the microcontroller is by a Serial Peripheral Interface (SPI) compatible serial connection using up to a 2.0 MHz shift clock rate.

FEATUREs
• Serial Input Bus
• 2.0 MHz Operating Frequency
• Tangential Drive Algorithm
• 70 mA Drive Circuits
• 0.5° Accuracy (Typ)
• Power−On−Reset
• Protection Features
   ✦ Output Short Circuit
   ✦ Overtemperature
• Internally Fused Leads in SOIC−16 WB Package
• Pb−Free Packages are Available*