TEA3718SP

Overview

The TEA3718SP is a bipolar stepper motor driver from STMicroelectronics, housed in a 20-pin SOIC surface-mount package. It operates within a supply voltage range of 10 V to 50 V and supports output currents up to 1.5 A. The device features LS-TTL compatible logic inputs, built-in protection diodes, and thermal overload protection. Designed for unstabilized motor supplies, it enables half-step and full-step modes with current control ranging from 5 mA to 1500 mA.

Feature Summary

• Supports half-step and full-step operation modes for precise stepper motor control
• Includes built-in protection diodes and thermal overload protection mechanisms
• Features LS-TTL compatible logic inputs for microprocessor integration

Applications

• LS-TTL or microprocessor-controlled stepper motor systems
• Bipolar drive applications requiring maximum motor performance
• Systems utilizing unstabilized motor supply voltages

Procurement Notes

Verify the specific suffix 'SP' against official STMicroelectronics documentation to confirm the exact package type and pinout configuration. Ensure compatibility with required operating temperatures and voltage ranges before integration into design schematics.

Selection Notes

Select this component for applications requiring bipolar stepper motor driving with integrated protection. Consider the SOIC package for surface-mount assembly needs and verify that the 10 V to 50 V input range aligns with the system's power supply architecture.

Part Context

The TEA3718 series consists of circuits including LS-TTL compatible logic inputs, current sensors, monostables, and output stages. Two ICs typically form a complete control unit for stepper motors, offering wide voltage and current control ranges with built-in safety features.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.