Littelfuse Unveils AEC-Q100 Gate Driver with Integrated Negative Bias for EVs

Littelfuse Unveils AEC-Q100 Gate Driver with Integrated Negative Bias for EVs

Littelfuse, a diversified industrial technology manufacturing company empowering a sustainable, connected, and safer world, announced the release of the IX4352NEAU automotive-qualified low-side gate driver designed to meet the growing demands of SiC MOSFET and IGBT control in electric vehicle (EV) powertrain and DC-DC converter applications.

The IX4352NEAU is the first AEC-Q100-qualified low-side gate driver to offer an integrated and adjustable negative gate drive bias, eliminating the need for an external negative voltage rail or the costly DC-DC converters typically required to suppress parasitic turn-on of high-speed power devices. This unique capability simplifies gate driver design, improves switching performance, and reduces total system cost.

“By integrating the IX4352NEAU in their latest designs, our customers can develop safer, more compact, and more efficient power systems,” said June Zhang, Product Manager, Integrated Circuits Division at Littelfuse. “This helps accelerate their time to market, while reducing total system cost in the growing markets of automotive DC-DC converters and automotive drivetrains.”

Key Features and Benefits

  • Adjustable negative gate drive bias (down to −10 V): Improves dv/dt immunity, suppresses parasitic turn-on, and ensures faster turn-off of SiC MOSFETs and IGBTs.
  • 9 A peak source and sink drive capability (separate pins): Enables tailored turn-on and turn-off timing to optimize efficiency and reduce switching losses.
  • Integrated protections: DESAT detection, active soft shutdown, UVLO, TSD, and fault output: Enhances system reliability and protects valuable power switches during fault conditions.
  • Integrated high-brightness LEDs in multiple colors and bi-color options
  • 3.3 V TTL/CMOS-compatible inputs: Tolerant up to 7 V, allowing easy interfacing with most control logic.
  • AEC-Q100 qualified and thermally robust: Ensures consistent performance across a wide temperature range, with improved thermal threshold accuracy and charge pump operation maintained during thermal shutdown.

Markets & Application

Click here to know more about IX4352NEAU.