POWER AND LINEAR IC SOLUTIONS

Automotive Qualified, Dual Low-Side Driver IC

With high fuel prices and rising concerns about the environment, there is pressure to improve vehicle efficiency levels. International Rectifier recently introduced the AUIRS4427S dual low-side driver IC for low, mid and high-voltage automotive applications, including general-purpose motor drives, automotive DC/DC converters and hybrid powertrain drives.



The AUIRS4427S is a low voltage, high speed power MOSFET and IGBT driver qualified to AEC-Q100 standards. It can produce a stable output voltage (V_out) of between 6V and 20V.

The output drivers have a high pulse-current buffer stage that enables minimum driver cross-conduction and matched propagation delay in both channels.

Negative voltage spike (V_s) immunity protects against potentially damaging events occurring during high-current switching and short-circuit conditions.

Thanks to this immunity and its matched propagation delay, the AUIRS4427S presents an extremely rugged driver solution that enables fast switching speeds (typically 50ns) in powertrain applications.

The AUIRS4427S, which is 3.3V and 5V logic compatible with standard CMOS or LSTTL outputs, features gate voltage (V_out) up to 20V, CMOS Schmitt-triggered inputs, two independent gate drivers and outputs in phase with inputs.

The device is available in a compact SOIC-8 package.

Features

• Gate drive supply, range: 6V to 20V
• CMOS Schmitt-triggered inputs
• 3.3V and 5V logic compatible
• 2 x independent gate drivers
• Matched propagation delay for both channels
• Outputs in phase with inputs
• Lead-free, RoHS compliant
• Automotive qualified

Applications

• Automotive low-side drivers
• Automotive DC/DC converters
• Automotive powertrain applications

For further information, including the International Rectifier AUIRS4427S Datasheet and details of how to obtain Samples, please click here