MCZ33789BAE is an airbag system basis chip (SBC) with a power supply and PSI5 sensor interface. It is a SafeAssure SMARTMOS solution and is a mixed signal IC for airbag safety applications. The 33789 provides a cost-effective and flexible system IC solution across the range of airbag partitions used in cars and other vehicles. It connects to the 12V vehicle battery and supplies the multiple voltages of a typical airbag system. The 33789 can detect switched input states, and communicate with both local and remote crash sensors. It has a dedicated safing state machine that complements the airbag’s MCU hardware/software safing approach. Also included are a diagnostic-self-protection capability and a programmable analog interface accessible by the system MCU. The application includes airbag safety.