Product overview
Description
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.
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All 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
All resources
Resource title | Version | Latest update |
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Product Specifications (1)
Resource title | Version | Latest update | ||
---|---|---|---|---|
2.1 | 19 Sep 2016 | 19 Sep 2016 |
Presentations (1)
Resource title | Version | Latest update | ||
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1.0 | 07 Aug 2020 | 07 Aug 2020 |
Brochures (4)
Resource title | Version | Latest update | ||
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10.24 | 10 Oct 2024 | 10 Oct 2024 | ||
1.0 | 13 Sep 2024 | 13 Sep 2024 | ||
12.24 | 17 Dec 2024 | 17 Dec 2024 | ||
12.2024 | 17 Dec 2024 | 17 Dec 2024 |
Magazine Articles (1)
Resource title | Version | Latest update | ||
---|---|---|---|---|
1.0 | 21 Feb 2024 | 21 Feb 2024 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - TEA3718
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
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Symbols

Footprints

3D models
Quality and Reliability
Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
---|---|---|---|---|---|---|---|
E-TEA3718DP | Active | PDIP 16 | Industrial | Ecopack3 | - | - | |
E-TEA3718SDP | Active | PDIP 16 | Industrial | Ecopack2 | - | - | |
E-TEA3718SFP | Active | SO-20 | Industrial | Ecopack2 | - | - | |
E-TEA3718SFPTR | Active | SO-20 | Industrial | Ecopack2 | - | - |
Marketing Status
Package
PDIP 16
Grade
Industrial
RoHS Compliance Grade
Ecopack3
Marketing Status
Package
PDIP 16
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SO-20
Grade
Industrial
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 | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
min | max | ||||||||||||||||||||||||||||||||||||||||||
E-TEA3718SDP | Active | 1.6716 / 1k | Available at 3 distributors Distributor availability of E-TEA3718SDP
Distributor reported inventory date: 4/12/2025 | | | | Buy from Distributor | | PDIP 16 | Tube | CHINA | EAR99 | NEC | 0 | 70 | ||||||||||||||||||||||||||||
E-TEA3718DP | Active | 1.8141 / 1k | Available at 4 distributors Distributor availability of E-TEA3718DP
Distributor reported inventory date: 4/12/2025 | | | | Buy from Distributor | | PDIP 16 | Tube | CHINA | EAR99 | NEC | 0 | 70 | ||||||||||||||||||||||||||||
E-TEA3718SFPTR | Active | 1.9831 / 1k | Available at 2 distributors Distributor availability of E-TEA3718SFPTR
Distributor reported inventory date: 4/12/2025 | | | | Buy from Distributor | | SO-20 | Tape and Reel | MALAYSIA | EAR99 | NEC | 0 | 70 | ||||||||||||||||||||||||||||
E-TEA3718SFP | Active | 1.9831 / 1k | Available at 1 distributors Distributor availability of E-TEA3718SFP
Distributor reported inventory date: 4/12/2025 | | | | Buy from Distributor | | SO-20 | Tube | MALAYSIA | EAR99 | NEC | 0 | 70 |
E-TEA3718SDP Active
Part Number:
E-TEA3718SDP
Operating Temperature (°C)
Min:
0
Max:
70
MOUSER
Stock
4955Min.Order
1DIGIKEY
Stock
1952Min.Order
1YOSUN
Stock
100Min.Order
1Distributor reported inventory date: 4/12/2025
Stock
Min.Order
E-TEA3718DP Active
Part Number:
E-TEA3718DP
Operating Temperature (°C)
Min:
0
Max:
70
Farnell Element14
Stock
765Min.Order
1MOUSER
Stock
1760Min.Order
1DIGIKEY
Stock
1000Min.Order
1Newark Element14
Stock
34Min.Order
0Distributor reported inventory date: 4/12/2025
Stock
Min.Order
E-TEA3718SFPTR Active
Part Number:
E-TEA3718SFPTR
Operating Temperature (°C)
Min:
0
Max:
70
MOUSER
Stock
436Min.Order
1DIGIKEY
Stock
2050Min.Order
1Distributor reported inventory date: 4/12/2025
Stock
Min.Order
E-TEA3718SFP Active
Part Number:
E-TEA3718SFP
Operating Temperature (°C)
Min:
0
Max:
70
MOUSER
Stock
1030Min.Order
1Distributor reported inventory date: 4/12/2025
Stock
Min.Order
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors