A4918KEVSR-1A-3-T

$2.06

Description：AUTOMOTIVE 3 PHASE GATE DRIVER W
Series：-
Mfr：Allegro MicroSystems
Package：Tape & Reel (TR)

SKU:3900da691c1c Category: Motor Drivers, Controllers Brand: Allegro MicroSystems

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Product introduction

Product Detailed Parameters

Description：AUTOMOTIVE 3 PHASE GATE DRIVER W
Series：-
Mfr：Allegro MicroSystems
Package：Tape & Reel (TR)
Motor Type - Stepper：Multiphase
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
Step Resolution：-
Applications：-
Current - Output：-
Voltage - Supply：4.5V ~ 50V
Voltage - Load：4.5V ~ 50V
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount, Wettable Flank
Package / Case：48-VFQFN Exposed Pad
Supplier Device Package：48-QFN (7x7)
Grade：Automotive
Qualification：AEC-Q100

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A4918KEVSR-1A-3-T

Overview

The A4918KEVSR-1A-3-T is an automotive-grade three-phase gate driver and BLDC controller from Allegro MicroSystems. It integrates a half-bridge output stage with I2C and SPI interfaces for digital control. The device supports low supply voltage operation, functioning within a 4.5V to 50V range. Designed for ASILD safety integrity levels, it features a 48-QFN (7x7) package. Key technical attributes include an operating temperature range of -40°C to 125°C and integrated protection mechanisms suitable for harsh automotive environments.

Feature Summary

Integrated ASILD-compliant BLDC controller with three-phase half-bridge outputs
Digital interface support via I2C and SPI protocols for precise motor control
Low supply voltage operation capability for flexible power system integration

Applications

Automotive brushless DC motor drives
Ignition system controllers
Motion control applications in vehicles

Procurement Notes

Verify the specific suffix '1A-3' against official Allegro documentation to confirm pinout and functional compatibility. Ensure the component meets required automotive quality standards and safety integrity levels for the target application. Cross-reference the datasheet for exact electrical characteristics and thermal performance data before finalizing procurement decisions.

Selection Notes

Select this component when an integrated solution combining gate driving and closed-loop control is required. The dual interface options allow flexibility in system architecture. Consider the wide supply voltage range and extended temperature rating for robustness in demanding automotive conditions. Evaluate the package size constraints against available PCB real estate.

Part Context

This part belongs to the A4918 series of automotive motor drivers. It represents a specialized integration of power switching and control logic. The series is designed to simplify the design of complex motor drive systems by reducing external component count. It targets high-reliability applications where safety and performance are critical.