Engineers in the automotive sector face technical challenges in providing inverter designs that offer increased efficiency, higher drive current, and higher noise immunity, particularly in hybrid electric vehicles (HEVs) and electric vehicles (EVs). To help designers meet these technical challenges, Fairchild Semiconductor (NYSE: FCS), a world-leading supplier of high-performance power and mobile products, has developed the FAN7171 high-current upside gate driver IC and the FAN7190 high-current upside and downside gate driver IC.

The FAN7171 and FAN7190, products of the automotive HVIC (high voltage IC) gate driver family, are ideal for electric and hybrid electric DC-DC power supplies and power inverters, diesel and gasoline injectors and valves, as well as MOSFET and IGBT driver applications.

The FAN7171 and FAN7190 HVIC devices provide an integrated inverter solution that offers enhanced efficiency, increased drive current, and higher robustness in demanding automotive applications.

FAN7171 is a monolithic upper gate driver IC capable of driving high-speed MOSFETs and IGBTs operating at a maximum of 500V or more, and FAN7190 is capable of driving MOSFETs and IGBTs operating at a maximum of 600V or more.

Improved driving performance enables support for higher power systems while increasing power efficiency. Both devices provide a buffer output stage with all NMOS transistors, designed for high pulse current driving performance and minimal cross-conduction characteristics. It provides enhanced noise immunity for a cathode voltage swing (VS) of up to -9.8V under 15V VBS conditions, increasing durability while improving design reliability in very strict noise environments.

FAN7171 and FAN7190 are certified to the AEC Q100 Automotive Class 1 standard and are highly integrated devices that provide increased functionality, allowing for faster design cycles by reducing the number of parts and board space while lowering the bill of material (BOM) costs.

Fairchild’s high-voltage processes and common-mode noise rejection techniques ensure stable operation for the upper driver in dv/dt noise environments. Advanced level shift circuitry provides upper gate driver operation down to a minimum VS = -9.8V (typical) for VBS = 15V. Under Voltage Lockout (UVLO) circuitry prevents failure when VBS falls below a specified threshold voltage.

Both devices are available in an 8-lead small outline package and are RoHS compliant.

Through Fairchild’s expertise in power semiconductor device and module packaging, integrated with comprehensive testing, simulation, and high-quality manufacturing, you can provide reliability for your products even in extremely demanding automotive environments, including engine bay applications. Through its global in-house design, manufacturing, assembly, and testing facilities, Fairchild Semiconductor can meet the quality, reliability, and availability requirements of automotive manufacturers, unlike other suppliers that utilize foundries and various third-party manufacturers.

Fairchild Semiconductor: Solutions for Your Success™

Price: Based on a supply of 1,000 units

FAN7171: $1.28

FAN7190: $1.50

Samples provided upon request

Delivery: 8–12 weeks after order placement