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The A4918KEVSR-1A-5-T is an N-channel power MOSFET driver that controls MOSFETs connected in a three-phase bridge setup, specifically designed for automotive applications using high-power inductive loads such as BLDC motors. A unique charge pump regulator provides the MOSFET gate driver for battery voltages as low as 7V and allows the A4918 to operate when the gate driver voltage drops to 4.5V. The gate drive voltage and strength can be programmed to help reduce EMC issues. The bootstrap capacitor is able to provide the battery supply voltage required by the N-channel MOSFET with an additional on-battery charge pump to ensure that the bootstrap capacitor remains charged while it remains on. The device provides full control of all six power MOSFETs in the three-phase bridge, allowing the motor to be driven by blocking phase change or sinusoidal excitation.

Integrated crossover control with optional programmable inductorless time protects the power MOSFETs from breakdown. Integrated diagnostics indicate multiple internal faults, system faults, and power bridging faults, and can be configured to protect the power MOSFETs in most short-circuit situations For safety-critical systems, integrated diagnostic operations can be verified under the control of the serial interface. The serial interface is used to change programmable settings and read back detailed diagnostic information.

Product Features

Three-Phase Bridge MOSFET Driver

Bootstrap gate drive for N-channel MOSFET bridges

Cross-conduction protection with adjustable inductorless time

Charge pump for low supply voltage operation

Programmable gate drive voltage and strength

4.5 to 50V supply voltage operating range

Integrated logic power supply

Three programmable current sense amplifiers

SPI-compatible serial interface

Bridge control via direct logic inputs or serial interface

Extensive programmable diagnostics

Diagnostic verification

Safety assistance functions

Certified to AEC-Q100 automotive electronics test standard

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

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• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.