The 33800 is a combination output switch and driver IC that may be used in numerous powertrain applications. The IC contains two programmable constant current drivers (CCD), an octal, low-side, serial switch (OSS) and six, external MOSFET gate pre-drivers (GD). The IC has overvoltage, undervoltage and thermal protection. All drivers and switches, including the external MOSFETs, have overcurrent protection, off-state open load detection, on-state shorted load detection and fault annunciation via the serial peripheral interface (SPI). Additional features include: Low power sleep mode, Heated Exhaust Gas Oxygen (HEGO) sensor diagnostics, output control via serial and/or parallel inputs, PWM capability, and programmable current output with dithering. These features, along with cost effective packaging, make the 33800 ideal for Powertrain Engine Control applications.