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The A4918KEVSR-1A-3-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 Properties

Motor Type - Stepper: Multi-Phase  

Motor Type - AC, DC: Brushless DC (BLDC)  

Function: Driver - Fully Integrated, Control and Power Stage  

Output Configuration: Half Bridge (3)  

Interface: I²C, SPI  

Technology: NMOS  

Application: Automotive  

Voltage - Supply: 4.5V ~ 50V  

Voltage - Load: 4.5V ~ 50V  

Operating Temperature: -40°C ~ 125°C  

Mounting Type: Surface Mount, Wettable Sides  

Package/Housing: 48-VFQFN Exposed Pad

• 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.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

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