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  • The circuits consist of an LS-TTL compatible logic input, a current sensor, a monostable and an output stage with built-in protection diodes. Two TEA3718 ICs and a few external components form a complete control and drive unit for LS-TTL or microprocessor-controlled stepper motor systems.

    Key Features

    • Current levels can be selected insteps or varied continuously
    • Designed for unstabilized motor supply voltage
    • Alarm output or pre-alarm output
    • Half-step and full-step mode
    • Built-in protection diodes
    • Bipolar drive of stepper motor for maximum motor performance
    • Wide voltage range 10 to 50 V
    • Thermal overload protection
    • Wide range of current control 5 to 1500 mA

Circuit Diagram

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E-TEA3718SDP
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1000 1.256 PDIP 16 Tube 0 70 EAR99
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Country of Origin:

MALAYSIA

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E-TEA3718DP
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1000 1.363 PDIP 16 Tube 0 70 EAR99
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MALAYSIA

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Farnell Element14 EUROPE 910 1 Order Now

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854

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E-TEA3718SFPTR
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1000 1.49 SO-20 Tape And Reel 0 70 EAR99
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MALAYSIA

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DIGIKEY WORLDWIDE 1938 1 Order Now
MOUSER WORLDWIDE 516 1 Order Now

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DIGIKEY

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1938

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516

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E-TEA3718SFP
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1000 1.49 SO-20 Tube 0 70 EAR99
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MALAYSIA

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DIGIKEY WORLDWIDE 208 1 Order Now

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208

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Distributor reported inventory date: 2019-09-19

E-TEA3718SDP

Marketing Status

Active

Quantity

1000

Unit Price (US$)

1.256*

Distributor availability ofE-TEA3718SDP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 380 1 Order Now
MOUSER WORLDWIDE 1323 1 Order Now

Distributor reported inventory date: 2019-09-19

Distributor Name

DIGIKEY

Stock

380

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1323

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-19

Unit Price (US$)

1.256

Package

PDIP 16

Packing Type

Tube

Operating Temperature (°C)

(min)

0

(max)

70

ECCN (US)

EAR99

Country of Origin

MALAYSIA

E-TEA3718DP

Marketing Status

Active

Quantity

1000

Unit Price (US$)

1.363*

Distributor availability ofE-TEA3718DP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 42 1 Order Now
RS COMPONENTS EUROPE 854 2 Order Now
AVNET AMERICA 1000 0 Order Now
FUTURE WORLDWIDE 650 1 Order Now
ARROW EUROPE 650 0 Order Now
MOUSER WORLDWIDE 179 1 Order Now
Farnell Element14 EUROPE 910 1 Order Now

Distributor reported inventory date: 2019-09-19

Distributor Name

DIGIKEY

Stock

42

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

854

Min.Order

2

Region

EUROPE Order Now

AVNET

Stock

1000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

650

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

650

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

179

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

910

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-19

Unit Price (US$)

1.363

Package

PDIP 16

Packing Type

Tube

Operating Temperature (°C)

(min)

0

(max)

70

ECCN (US)

EAR99

Country of Origin

MALAYSIA

E-TEA3718SFPTR

Marketing Status

Active

Quantity

1000

Unit Price (US$)

1.49*

Distributor availability ofE-TEA3718SFPTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1938 1 Order Now
MOUSER WORLDWIDE 516 1 Order Now

Distributor reported inventory date: 2019-09-19

Distributor Name

DIGIKEY

Stock

1938

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

516

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-19

Unit Price (US$)

1.49

Package

SO-20

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

0

(max)

70

ECCN (US)

EAR99

Country of Origin

MALAYSIA

E-TEA3718SFP

Marketing Status

Active

Quantity

1000

Unit Price (US$)

1.49*

Distributor availability ofE-TEA3718SFP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 208 1 Order Now

Distributor reported inventory date: 2019-09-19

Distributor Name

DIGIKEY

Stock

208

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-19

Unit Price (US$)

1.49

Package

SO-20

Packing Type

Tube

Operating Temperature (°C)

(min)

0

(max)

70

ECCN (US)

EAR99

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

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Technical Documentation

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      DS0156
      Stepper motor driver
      2.1
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      Stepper motor driver

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      L647x slew rate control: reduce power losses and operative junction temperature
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      329.64 KB
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      Planning for easy troubleshooting with your L647x, L648x, or PowerStep01 design
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      Planning for easy troubleshooting with your L647x, L648x, or PowerStep01 design

Presentations & Training Material

    • Description Version Size Action
      An introduction to electric motors 1.0
      2.23 MB
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      An introduction to electric motors

Publications and Collaterals

    • Description Version Size Action
      STSPIN motor drivers 11.2017
      1.6 MB
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      STSPIN motor drivers

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      Motor Control Reference Guide 15.10
      2.61 MB
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      STSPIN Motor Control: Design Considerations for Brushless Direct Current Motor Control 1.0
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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
E-TEA3718DP
Active
PDIP 16 Industrial Ecopack2
E-TEA3718SDP
Active
PDIP 16 Industrial Ecopack2 (**)
E-TEA3718SFP
Active
SO-20 Industrial Ecopack1 (*)
E-TEA3718SFPTR
Active
SO-20 Industrial Ecopack1 (*)

E-TEA3718DP

Package:

PDIP 16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PDIP 16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

E-TEA3718SDP

Package:

PDIP 16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PDIP 16

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

E-TEA3718SFP

Package:

SO-20

Material Declaration**:

PDF

Marketing Status

Active

Package

SO-20

Grade

Industrial

RoHS Compliance Grade

Ecopack1 (*)

E-TEA3718SFPTR

Package:

SO-20

Material Declaration**:

PDF

Marketing Status

Active

Package

SO-20

Grade

Industrial

RoHS Compliance Grade

Ecopack1 (*)

(**) 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.

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