A4928

A4928 Automotive Half-Bridge MOSFET Driver FEATURES AND BENEFITS Half-bridge MOSFET driver Bootstrap gate drive for N-channel MOSFET bridge Cross-conduction protection with adjustable dead time Charge pump regulator for low supply voltage operation 5.5 to 50 V supply voltage operating range 5 V CMOS Logic I/O SPI-compatible serial interface Bridge control by direct logic inputs or serial interface Programmable gate drive Current sense amplifier Programmable diagnostics Automotive AEC-Q100 qualified A2SIL™ product—device features for 2 - safety-critical systems APPLICATIONS Anti-lock braking systems (ABS) HVAC (blower fan) DC pumps (fuel, oil, water) Solenoids and actuators Similar industrial applications PACKAGE: 24-lead TSSOP with exposed pad (suffix LP) Not to scale DESCRIPTION The A4928 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 solenoids and actuators. The A4928 is intended for automotive systems that must meet ASIL requirements. In common with other Allegro A2SIL™ products, this device incorporates features to complement proper system design, allowing users to achieve the required ASIL level. A unique charge pump regulator provides full gate drive for battery voltages down to 5.5 V for most applications. A bootstrap capacitor is used to provi...