L99SM81VYTR

$3.83

Description：STEPPER MOTOR DRIVER
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:fd2e282c34a5 Category: Motor Drivers, Controllers Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：STEPPER MOTOR DRIVER
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Motor Type - Stepper：Bipolar
Motor Type - AC, DC：-
Function：Driver
Output Configuration：Half Bridge (2)
Interface：PWM, SPI
Technology：Power MOSFET
Step Resolution：1, 1/2, 1/4, 1/8, 1/16
Applications：-
Current - Output：1.35A
Voltage - Supply：6V ~ 28V
Voltage - Load：5V
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：36-PowerFSOP (0.295", 7.50mm Width)
Supplier Device Package：PowerSSO-36
Grade：Automotive
Qualification：AEC-Q100

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L99SM81VYTR

Overview

The L99SM81VYTR is a programmable bipolar stepper motor driver designed for automotive applications, manufactured by STMicroelectronics. It features a PowerSSO-36 surface-mount package and integrates two half-bridge outputs capable of delivering 1.35A per channel. The device operates on a supply voltage range of 6V to 28V with a 5V load voltage rating. It supports PWM and SPI interfaces for control and offers micro-stepping resolutions of 1, 1/2, 1/4, 1/8, and 1/16. Certified to AEC-Q100 standards, it functions within a junction temperature range of -40°C to 150°C.

Feature Summary

Integrated dual half-bridge power MOSFET architecture for bipolar stepper motor driving
Programmable micro-stepping capability supporting multiple resolution steps
Automotive-grade reliability certified under AEC-Q100 standards
Digital control interface utilizing SPI and PWM protocols

Applications

Automotive seat adjustment systems
Vehicle window and sunroof actuators
Steering column positioners
HVAC air flap control mechanisms

Procurement Notes

Verify the specific suffix 'VYTR' corresponds to the PowerSSO-36 packaging configuration when sourcing. Confirm that the component meets AEC-Q100 qualification requirements for your target automotive environment. Ensure compatibility with the required SPI communication protocol and voltage levels during integration planning.

Selection Notes

Select this component for designs requiring robust bipolar stepper control in harsh automotive environments. The integrated MOSFETs eliminate the need for external drivers, reducing board space. Consider the 1.35A output current limit and the 6V-28V operating range to ensure alignment with the motor specifications and vehicle electrical system constraints.

Part Context

This part belongs to the L99SM81V series of programmable stepper motor drivers from STMicroelectronics. The family is engineered specifically for automotive use cases demanding high reliability and precise motion control. The L99SM81VQ6TR variant exists as an alternative package option within the same functional family.