{"product_id":"l9949-engine-power-supply-ic-for-automotive-ignition-direct-drive","title":"L9949 – Engine Power Supply IC for Automotive Ignition \u0026 Direct Drive","description":"\u003cp\u003eThe L9949 is a highly integrated engine power supply and driver IC, specifically designed for automotive ignition coil driver and small DC motor control applications.\u003c\/p\u003e\n\u003cp\u003eIt combines a logic interface, a high-side driver, and a low-side driver in one monolithic device, enabling compact and reliable ECU designs.\u003c\/p\u003e\n\u003cp\u003eThe high-side driver features a very low on-resistance, which reduces power dissipation and improves thermal performance in engine control modules.\u003c\/p\u003e\n\u003cp\u003eThe low-side driver can directly drive an ignition IGBT or a power MOSFET, making it suitable for both ignition timing and idle speed control actuators.\u003c\/p\u003e\n\u003cp\u003eThis IC supports operating voltages from 4.5V to 36V, with stand-by capability up to 40V, covering cranking and load-dump conditions common in 12V automotive systems.\u003c\/p\u003e\n\u003cp\u003eBuilt-in protection includes over-temperature shutdown, over-current limitation, and active clamp for the low-side output, enhancing system robustness.\u003c\/p\u003e\n\u003cp\u003eDiagnostic feedback via the serial peripheral interface (SPI) allows the microcontroller to monitor load conditions and detect short circuits or open loads.\u003c\/p\u003e\n\u003cp\u003eThe L9949 is AEC-Q100 qualified, ensuring it meets the stringent reliability and temperature requirements of under-hood automotive electronics.\u003c\/p\u003e\n\u003cp\u003eWhether used in single-cylinder engine control, small fuel pumps, or throttle actuators, this chip provides a space-saving and cost-effective solution for 12V vehicle platforms.\u003c\/p\u003e","brand":"Qlnova","offers":[{"title":"Default Title","offer_id":45323944919149,"sku":null,"price":3.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/5950\/8845\/files\/L9949-2.webp?v=1781150105","url":"https:\/\/qlnova.com\/products\/l9949-engine-power-supply-ic-for-automotive-ignition-direct-drive","provider":"Qlnova","version":"1.0","type":"link"}