TC78S121FTG,EL

Overview

The TC78S121FTG,EL is a bipolar stepper motor driver IC manufactured by Toshiba Semiconductor and Storage. It utilizes power MOSFET technology with a parallel interface for control signals. The device supports a supply voltage range of 4.5V to 5.5V and handles load voltages from 8V to 38V. It features an output current capacity of 2A per phase and includes eight half-bridge outputs. The component operates within a junction temperature range of -20°C to 150°C and is housed in a 48-QFN (7x7) package.

Feature Summary

• Integrates full control logic and power stage for bipolar stepper motors
• Supports parallel interface for simplified system integration
• Provides high thermal stability with extended junction temperature range

Applications

• Bipolar stepper motor control systems
• General purpose motion control applications
• Industrial automation equipment requiring integrated driver solutions

Procurement Notes

Verify the specific suffix EL against official Toshiba documentation to confirm packaging and material specifications. Ensure the selected variant matches the required interface and thermal performance for the target application environment. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm authenticity and current production status before finalizing procurement orders.

Selection Notes

Select this component when a fully integrated solution for bipolar stepper motors is required. The parallel interface suits designs where pin count flexibility allows direct connection to microcontrollers. Consider the 2A output capability and 38V load voltage limit to ensure compatibility with the motor's electrical requirements and operating conditions.

Part Context

This part belongs to the TC78S series of stepper motor drivers from Toshiba Semiconductor and Storage. These components are designed to simplify the design of motion control systems by combining gate drive, logic control, and power output stages into a single package. The series targets applications needing reliable, compact, and efficient motor driving capabilities.

Replacement Considerations

TC78S122FNG,EL serves as a functional alternative within the same product family, offering similar bipolar stepper motor driver capabilities with a different package configuration.