驱动器

Improving Batwing Power Dissipation

AN295015 - Allegro MicroSystems’ stepper motor ICs are power ICs encapsulated in DIP (dual in-line), SOIC (small outline integrated circuit), and PLCC (plastic leaded chip carrier) packages. The silicon die is directly bonded to a heat-spreading lead frame (batwing).

Brochure: Driving EV Powertrains

With the industry’s largest portfolio of grade 0, 80V motor drivers, Allegro’s suite of fully integrated gate drivers effectively address the critical need for efficient, flexible, reliable solutions for your hybrid and electric vehicles (EV).

Bootstrap Supply and Circuit Guidelines

This application note describes the operation of the bootstrap circuit and guidelines in selecting a bootstrap capacitance value to ensure normal operation of the gate drives.

Estimating Maximum MOSFET Switching Frequency

AN296216 - This application note describes how to calculate the maximum power MOSFET switching frequency in BLDC motor gate drives.

A4919 Evaluation Board User Guide

This board provides the basic components required to use the A4919 to drive a motor. The motor can be controlled via an externally supplied PWM signal input on the logic input terminals.

A Scalable Approach to Power Tool Designs

Achieve all of your design goals for voltage and power levels with a single-platform architecture by combining Allegro drivers, sensors, and regulators.

A5931 Evaluation Board User Guide

This evaluation board is used to demonstrate the Allegro A5931GES three-phase sensorless fan driver IC.

A89301 Evaluation Board User Guide

The A89301 evaluation board is designed to aid system designers in evaluating the operation and performance of the A89301 motor controller IC.

A5932GES Evaluation Board User Guide

This evaluation board is used to demonstrate the Allegro A5932GES Three-Phase Sinusoidal Sensorless fan controller IC.

A5947GET Evaluation Board User Guide

This evaluation board is used to demonstrate the Allegro A5947GET three-phase sensorless fan driver IC.

A4915MET Evaluation Board User Guide

This evaluation board is used to demonstrate the Allegro A4915MET three-phase MOSFET driver IC.

Efficient and Reliable Solutions to Meet New Emission Standards in Two-Wheelers

June 05, 2023

P0255: This article discusses the challenges that two-wheeler designers face when switching to an EFI system, notably a 100 ms fast startup requirement.

Brochure: Automotive BLDC Gate Driver with Integrated FOC Algorithm

Designed for battery cooling fans and HVAC systems in EV and hybrid vehicles, the A89307 offers ultra-low noise and vibration by using a Field Oriented Control (FOC) algorithm to drive continuous sinusoidal current to the load, helping automakers reduce noise and improve battery life.

Sensorless and Always Without Reverse Rotation: Rapid and Accurate Startup for Blower Fan Motors

September 09, 2022

P0211 - This article describes how initial rotor position detection techniques can overcome torque generation challenges to provide anti-reverse, fast, sensorless startup.

Single Gate Driver Design Enables Wide Range of Battery Voltages for Various Motor Power Levels

April 10, 2023

P0239 - This article discusses the challenges of trying to accommodate wide-ranging battery voltages and motor powers in a single driver design.