The FAD3151MXA and FAD3171MXA are single channel floating

automotive gate drivers suitable for driving high−speed power

MOSFETs up to 110 V. Designed in a SOI technology, the drivers are

ideal for applications that require noise immunity against severe

negative transients and ground offset up to −80 V.

The FAD3151MXA/71 drivers have an integrated desaturation

detection to protect the power switches during short−circuit and

over−current conditions. The drivers are also equipped with a soft

shutdown feature, which initiates a soft shutdown of driver outputs

upon desat detection, thus preventing possible overvoltage across

power MOSFETs during a heavy−load condition.

The FAD3151MXA/71 drivers are equipped with bidirectional fault

reporting pin that can generate a fault output during desat and

under−voltage lockout (UVLO) condition. The bidirectional nature of

the fault−reporting pin allows the driver to respond to external fault

commands, thereby facilitating fault communication across the

system. In addition, the FAD3171MXA has an integrated charge pump

to support 100 duty cycle operation of high side MOSFETs.

In summary, the FAD3151MXA/71 are versatile drivers with

features like desat detection, soft shutdown, fault reporting capability,

UVLO protection, and charge pump.

Features

 Single Channel Gate Driver with 110 V floating Vs capability

 Negative Transient Capability up to −80 V

 2.5 A Output Source and Sink Current

 MOSFET Drain−Source Desaturation Detection with Soft Shutdown

 Integrated Charge Pump to support 100 Duty Cycle Operation

(FAD3171MXA only)

 Under−voltage Lock Out for both Input Logic and Output Stage

 Bi−directional Fault Reporting Pin

 High Speed Driver with Short Propagation Delay

 dVs/dt Immune to min 50 V/ns

 3.3 V and 5 V Input Logic Compatible

 Up to VDD Swing on Input Pins

 SOIC−8 package

 Automotive Qualified to AEC Q100

 These Devices are Pb−Free and are RoHS Compliant

Typical Applications

 Gate Driver for 80V and 100V MOSFETs

 48 V Belt Starter Generator

 48 V Auxiliary Motor Control (A/C compressor, e−turbo)

 48 V Battery Switches

 48 V DC−DC converter

 PTC Heater, Active Discharge Circuit etc.