Date: 08/04/2012

Automotive gate driver ICs from Fairchild for driving Inverter MOSFETs

Fairchild Semiconductor has developed the FAN7171 high-current, high-side gate driver IC and the FAN7190 high-current, high- and low-side gate driver IC for inverters in hybrid electric vehicles (HEV) and electric vehicles (EV), diesel and gasoline injectors and valves as well as MOSFET and IGBT high-side driver applications.

The FAN7171 is a monolithic high-side gate driver IC that can drive high speed MOSFETs and IGBTs that operate up to +500V, while the FAN7190 can drive MOSFETS and IGBTs that operate up to +600V.

Both devices have a buffered output stage with all NMOS transistors designed for high pulse current driving capability and minimum cross-conduction. Better noise immunity, with a negative voltage swing (VS) down to -9.8V at 15V VBS, allows for improved design reliability and increased durability in challenging noise environments.

FAN7171 and FAN7190 are qualified to AEC Q100 Automotive Class 1 standards. An advanced level shift circuit offers high-side gate driver operation down to VS = -9.8V (typical) for VBS = 15V. An Under Voltage Lockout (UVLO) circuit prevents malfunction when VBS is lower than the specified threshold voltage.

Both devices are packaged in an 8-lead small outline package (SOP) and are RoHS-compliant.

Price: in 1,000 quantity pieces

FAN7171: US $1.28

FAN7190: US $1.50

Availability: Samples available now

Delivery: 8-12 weeks ARO