AMT49502

AMT49502 80 V Automotive Half-Bridge MOSFET Driver FEATURES AND BENEFITS Half-bridge MOSFET driver Bootstrap gate drive for N-channel MOSFET bridge Independent control of high-side and low-side gate drives with cross-conduction capability Charge pump regulator for low supply voltage operation 5.5 to 80 V supply voltage operating range Integrated logic I/O supply SPI-compatible serial interface Bridge control by direct logic inputs or serial interface Programmable gate drive Current sense amplifier Programmable diagnostics A2SIL™ product—device features for 2 safety-critical systems - AEC-Q100 Grade 0 qualified PACKAGE: 24-lead TSSOP with exposed pad (suffix LP) Not to scale DESCRIPTION The AMT49502 is an N-channel power MOSFET driver capable of controlling MOSFETs connected in a half-bridge arrangement and is specifically designed for automotive applications with high-power inductive loads, such as brush DC motors, BLDC motors, VR/SR motors, solenoids, and actuators. A unique charge pump regulator provides full gate drive over the full supply voltage range from 5.5 to 80 V for most applications. A bootstrap capacitor is used to provide the above-battery supply voltage required for N-channel MOSFETs. Each MOSFET can be independently controlled by logic-level inputs or through the SPI-compatible serial interface. Fully independent control allows both external FETs to be turned on at the same time. Integrated diagnostics provide in...