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  • The L9935 is a two-phase stepper motor driver circuit suited to drive bipolar stepper motors.

    The device can be controlled by a serial interface (SPI). All protections required to design a well protected system (short-circuit, over temperature, cross conduction etc.) are integrated.

    Key Features

    • 2 x 1.1 A full bridge outputs
    • Integrated chopping current regulation
    • Minimized power dissipation during flyback
    • Output stages with controlled output voltage slopes to reduce electromagnetic radiation
    • Short-circuit protection of all outputs
    • Error-flag for over load, open load and over temperature pre alarm
    • Delayed channel switch on to reduce peak currents
    • Max. operating supply voltage 24 V
    • Standby consumption typically 40 μA
    • Serial interface (SPI)

Circuit Diagram

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Technical Documentation

    • Description Version Size Action
      DS1138
      Two-phase stepper motor driver
      10.0
      372.42 KB
      PDF
      DS1138

      Two-phase stepper motor driver

    • Description Version Size Action
      AN2378
      Software filter algorithm for open-load detection on the L9935 device
      3.2
      222.35 KB
      PDF
      AN2378

      Software filter algorithm for open-load detection on the L9935 device

Publications and Collaterals

    • Description Version Size Action
      Smart power solutions for car body applications 4.0
      3.38 MB
      PDF

      Smart power solutions for car body applications

    • Description Version Size Action
      ST’s solutions for automotive seating systems 1.0
      1.3 MB
      PDF

      ST’s solutions for automotive seating systems

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
E-L9935
Active
PowerSO-20 Automotive Ecopack2
E-L9935013TR
Active
PowerSO-20 Automotive Ecopack2

E-L9935

Package:

PowerSO-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO-20

Grade

Automotive

RoHS Compliance Grade

Ecopack2

E-L9935013TR

Package:

PowerSO-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO-20

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
E-L9935013TR Available at 6 distributors

Distributor availability ofE-L9935013TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 8238 1 Order Now
AVNET AMERICA 1200 0 Order Now
ARROW EUROPE 16200 0 Order Now
ARROW AMERICA 568 1 Order Now
MOUSER WORLDWIDE 848 1 Order Now
Farnell Element14 EUROPE 1066 1 Order Now

Distributor reported inventory date: 2020-08-09

Distributor Name

DIGIKEY

Stock

8238

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1200

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

16200

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

568

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

848

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1066

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-09

Buy now
Active
EAR99 NEC Tape And Reel PowerSO-20 - - MALAYSIA 2.6 / 1k
E-L9935 Available at 2 distributors

Distributor availability ofE-L9935

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 306 1 Order Now
MOUSER WORLDWIDE 282 1 Order Now

Distributor reported inventory date: 2020-08-09

Distributor Name

DIGIKEY

Stock

306

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

282

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-09

Buy now
Active
EAR99 NEC Tube PowerSO-20 - - MALAYSIA 2.6 / 1k

E-L9935013TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.6 / 1k

Distributor availability ofE-L9935013TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 8238 1 Order Now
AVNET AMERICA 1200 0 Order Now
ARROW EUROPE 16200 0 Order Now
ARROW AMERICA 568 1 Order Now
MOUSER WORLDWIDE 848 1 Order Now
Farnell Element14 EUROPE 1066 1 Order Now

Distributor reported inventory date: 2020-08-09

Distributor Name

DIGIKEY

Stock

8238

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1200

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

16200

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

568

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

848

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1066

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-09

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSO-20

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

2.6 / 1k

Country of Origin

MALAYSIA

E-L9935

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.6 / 1k

Distributor availability ofE-L9935

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 306 1 Order Now
MOUSER WORLDWIDE 282 1 Order Now

Distributor reported inventory date: 2020-08-09

Distributor Name

DIGIKEY

Stock

306

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

282

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-09

ECCN (EU)

NEC

Packing Type

Tube

Package

PowerSO-20

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

2.6 / 1k

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors