{"product_id":"48031-automotive-airbag-system-basis-chip-boost-regulator-4-squib-drivers-spi-psi-5","title":"48031 Automotive Airbag System Basis Chip - Boost Regulator, 4 Squib Drivers, SPI, PSI-5","description":"\u003cp\u003e48031 is a highly integrated system basis chip (SBC) engineered specifically for automotive airbag control units and battery cutoff systems.\u003c\/p\u003e\n\u003cp\u003eThis IC combines all essential power management and communication functions required in a modern airbag ECU.\u003cbr\u003eIt features a high-frequency boost regulator that manages the energy reserve voltage, with a user-selectable output of 23V or 33V, ensuring reliable deployment power is available during emergency conditions.\u003c\/p\u003e\n\u003cp\u003eThe device integrates user-configurable linear power supplies to support the microcontroller, onboard sensors, and communication transceivers.\u003cbr\u003eFor deployment control, it includes a 4-channel squib\/pyroswitch driver with high-side and low-side switches, supporting programmable firing profiles up to 1.75A with various timing configurations.\u003c\/p\u003e\n\u003cp\u003eDiagnostics are a core strength of this chip.\u003cbr\u003eIt offers system voltage supervision, an integrated ADC for analog measurements, and comprehensive diagnostics for the firing loops including leakage detection and loop resistance measurement.\u003cbr\u003eThe built-in safing logic and watchdog timer significantly contribute to a robust safety concept.\u003c\/p\u003e\n\u003cp\u003eCommunication with the main MCU is handled via a 32-bit SPI interface.\u003cbr\u003eThe chip also supports a PSI-5 remote sensor interface for peripheral satellite sensors, reducing wiring harness complexity.\u003cbr\u003eOperating over an extended temperature range, this AEC-Q100 qualified component ensures dependable performance in harsh automotive environments.\u003c\/p\u003e","brand":"Qlnova","offers":[{"title":"Default Title","offer_id":45366233727085,"sku":null,"price":9.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/5950\/8845\/files\/48031-1.webp?v=1782183987","url":"https:\/\/qlnova.com\/products\/48031-automotive-airbag-system-basis-chip-boost-regulator-4-squib-drivers-spi-psi-5","provider":"Qlnova","version":"1.0","type":"link"}