AMT49105
Three-Phase MOSFET Driver System IC 2 -FEATURES AND BENEFITS DESCRIPTION • • • • • • • • • • • • • • • • • The AMT49105 is an N-channel power MOSFET driver
capable of controlling MOSFETs connected in a three-phase
bridge arrangement and is specifically designed for automotive
applications with high-power inductive loads such as BLDC
motors. Full control over all six power MOSFETs in the threephase bridge is provided, allowing motors to be driven with
block commutation or sinusoidal excitation. 3-phase bridge MOSFET driver
Bootstrap gate drive for N-channel MOSFET bridge
Cross-conduction protection with adjustable dead time
Charge pump for low supply voltage operation
Programmable gate drive voltage and strength
5.5 to 50 V supply voltage operating range
Integrated logic supply
Current sense amplifier with programmable gain and offset
SPI-compatible serial interface
Bridge control by direct logic inputs or serial interface
Integrated bemf state comparators
LIN/PWM physical interface with Wake
Programmable logic supply regulator with current limit
MCU Window watchdog and reset
Ignition switch interface
Diagnostics, status, voltage, and temperature feedback
Developed in accordance with ISO 26262:2011 APPLICATIONS The AMT49105 is designed to provide the gate drive, supply, and …
