AMT49107

AMT49107 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 Charge pump for low supply voltage operation Operation at any PWM duty cycle up to and including 100% 4.5 to 50 V supply voltage operating range Supply for external isolator SPI-compatible serial interface Bridge control by direct logic inputs or serial interface Q&A and ENABLE watchdog 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 QFN with exposed thermal pad (suffix EV) Not to scale *The AMT49107 was developed in accordance with ISO 26262 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 AMT49107 is an N-channel power MOSFET driver capable of controlling MOSFETs connected in a 3-phase bridge arrangement and is specifically designed for automotive applications with high-power inductive loads, such as BLDC motors. A unique charge pump regulator provides the supply for the MOSFET gate drive for battery voltages down to 5.5 V and allows the AMT49107 to operate with a reduced gate drive down to 4.5 V. Gat...