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L99SM81VQ6TR The STMicroelectronics L99SM81VQ6TR is a bipolar stepper motor driver designed for automotive applications. It operates at 5V and provides 1.35A current.
Mfr Part #:

L99SM81VQ6TR

Available from 4 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics L99SM81VQ6TR is a bipolar stepper motor driver designed for automotive applications. It operates at 5V and provides 1.35A current.
✓ Total Stock: 11,173 pcs
$ Price Range: $2.25

L99SM81VQ6TR Available from 4 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
6,000 pcs
On Request
6000 pcs On Request 1 On Request On Request On Request On Request On Request
Risen Electronics ✓
Non-Authorised Inventory information
3,000 pcs
On Request
3000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Xingangxin ✓
Non-Authorised Inventory information
1,173 pcs
On Request
1173 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
1,000 pcs
On Request
1000 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

L99SM81VQ6TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Automotive Grade
Current
Function
Interface
Motor Type
Mounting Type
Operating Temperature
Output Configuration
SVHC Present
Step Resolution
Supplier Device Package
Supplier Package
Technology
Voltage
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L99SM81VQ6TR Description

Short technical summary and product information.

The STMicroelectronics L99SM81VQ6TR is a high-performance stepper motor driver IC designed for demanding automotive applications. This device features a robust Power MOSFET technology and supports bipolar motor types with various step resolutions including 1, 1/2, 1/4, 1/8, and 1/16.

 

With an operating voltage of 5V and a current rating of 1.35A, the L99SM81VQ6TR is suitable for driving stepper motors in various automotive systems. It offers flexible control through PWM and SPI interfaces, enabling precise motor control.

 

The driver is housed in a 40-TFQFN Exposed Pad package, designed for surface mounting, ensuring efficient heat dissipation and reliable performance. The operating temperature range is from -40°C to 150°C (TJ), making it suitable for harsh automotive environments. Its output configuration includes Half Bridge (2) for versatile motor driving capabilities.

L99SM81VQ6TR Quick Information

Product Type: Stepper Motor Driver
Canonical Name: STMicroelectronics L99SM81VQ6TR Stepper Motor Driver
Subcategory: Stepper Motor Driver

L99SM81VQ6TR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

L99SM81VQ6TR Estimated Pricing

Qty Low High
1+ $2.25 $2.25

Estimated market price range - modelled values for guidance only, not live distributor offers.

L99SM81VQ6TR Features

  • Bipolar stepper motor driver IC.
  • Automotive applications supported.
  • 1.35A current and 5V voltage.
  • PWM and SPI interface control.
  • Surface mount 40-TFQFN package.

L99SM81VQ6TR Applications

  • Automotive bipolar stepper motor control.
  • Industrial motion control systems.
  • Robotics and automation equipment.
  • Precision positioning applications.
  • Engine management systems.

L99SM81VQ6TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the L99SM81VQ6TR?

5V.

What package does the L99SM81VQ6TR come in?

40-TFQFN Exposed Pad, also referred to as 40-QFN (6x6).

What is the operating temperature range?

-40°C to 150°C (TJ).

What interface options does it support?

PWM and SPI.

What step resolutions are available?

1, 1/2, 1/4, 1/8, and 1/16.

What type of motor does it drive?

Bipolar stepper motors.

Is it suitable for automotive applications?

Yes, the specifications list automotive as the application.

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