NJM3777E3

Overview

The NJM3777E3 is a dual bipolar stepper motor driver manufactured by Nisshinbo Micro Devices Inc. It operates within a supply voltage range of 4.75V to 5.25V and supports load voltages from 10V to 40V. The device delivers an output current of 800mA with a working power supply current between 85mA and 99mA. It features a 24-EMP surface-mount package and functions across a temperature range of -20°C to +125°C (TJ).

Feature Summary

• Integrates full control logic and power stages for bipolar stepper motors.
• Supports parallel interface operation with selectable step resolutions.
• Includes built-in protection diodes within the high-power H-bridge output stage.

Applications

• General purpose stepper motor control systems.
• Automation equipment requiring integrated drive solutions.
• Motion control applications utilizing bipolar stepper motors.

Procurement Notes

This component is officially listed as inactive or discontinued by the manufacturer. Availability is restricted, and distributors may not stock this item in standard regions. Verify end-of-life status and obsolescence notifications before design commitment. Sourcing requires confirmation of remaining inventory levels through authorized channels.

Selection Notes

Select this part for applications requiring a fully integrated bipolar stepper driver with parallel interface capabilities. Ensure the system load voltage remains within the specified 10V to 40V range. Consider the 24-EMP package size for PCB layout constraints. Verify thermal management requirements given the operating temperature limits.

Part Context

The NJM3777E3 belongs to the NJM3777 series of stepper motor controllers and drivers. It is designed to provide complete control and drive functionality for bipolar stepper motors. The device simplifies system design by integrating logic inputs, current sensing, and power output stages into a single package.

Replacement Considerations

NJM3777E3-TE2