AMT49100

AMT49100 80 V Automotive Three-Phase MOSFET Driver FEATURES AND BENEFITS 3-phase bridge MOSFET driver Bootstrap gate drive for N-channel MOSFET bridge Cross-conduction protection with adjustable dead time Fixed-frequency buck converter Operation at any PWM duty cycle up to and including 100% Programmable gate drive strength 10 to 80 V supply voltage operating range Programmable 3.3 or 5 V CMOS compatible logic I/O Three programmable current sense amplifiers SPI-compatible serial interface Bridge control by direct logic inputs or serial interface Programmable control input logic sense Extensive programmable diagnostics Diagnostic verification Safety-assist features Automotive AEC-Q100 qualified A2-SIL™ product—device features for 2 - safety-critical systems* PACKAGE: 48-pin LQFP with exposed thermal pad (suffix JP) Not to scale *The AMT49100 was developed in accordance with ISO 26262:2011 as a hardware safety element out of context with ASIL D capability for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety application note and datasheet. DESCRIPTION The AMT49100 is an N-channel power MOSFET driver capable of controlling MOSFETs connected in a 3-phase bridge arrangement and is specifically designed for 48 V automotive power applications with high-power inductive loads, such as BLDC motors. A fixed-frequency buck converter provides a regulated gate drive an...