TC78S121FNG,EL

Overview

The TC78S121FNG,EL is a bipolar stepper motor driver IC manufactured by Toshiba Semiconductor and Storage. It utilizes power MOSFET technology to deliver an output current of 2A. The device operates with a supply voltage range of 4.5V to 5.5V and supports load voltages from 8V to 38V. It features eight half-bridge outputs and accepts parallel interfaces. Packaged in a 48-QFN (7x7mm) format with a bare pad, it functions as a fully integrated controller and driver for bipolar stepper motors and brushed DC motors within a junction temperature range of -20°C to 150°C.

Feature Summary

• Integrates control logic and power stages into a single fully integrated solution
• Employs power MOSFET technology for efficient motor driving
• Supports multiple stepping resolutions including full, half, and quarter steps

Applications

• Bipolar stepper motor control systems
• Brushed DC motor applications
• General purpose motion control devices

Procurement Notes

Verify the specific package variant, as the base part number may correspond to different packages such as 48-HTSSOP or 48-QFN. Confirm the suffix 'EL' indicates the reel packaging type. Ensure the application environment stays within the specified 4.5V to 5.5V supply voltage limits. Check for moisture sensitivity level requirements during storage and handling. Validate that the thermal dissipation capabilities of the 48-QFN package meet the system's heat management needs.

Selection Notes

Select this component when a compact, fully integrated stepper motor driver is required. The 48-QFN package offers a small footprint suitable for space-constrained designs. The parallel interface simplifies connection to microcontrollers. Consider the 2A output capability and 38V load voltage support for moderate power applications. Ensure the operating temperature range aligns with the intended deployment environment.

Part Context

This component belongs to Toshiba's line of motor drivers designed for general-purpose applications. It integrates both the driver and controller functions, reducing the need for external components. The use of power MOSFETs provides robust performance for driving stepper and DC motors. The product is categorized under PMIC motor drivers and controllers.

Replacement Considerations

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