NJM3771D2

Overview

The NJM3771D2 is a fully integrated bipolar stepper motor driver manufactured by Nisshinbo Micro Devices Inc. It operates with a supply voltage of 4.75V to 5.25V and supports load voltages from 10V to 40V. The device delivers an output current of 650mA and features four half-bridge outputs. It utilizes a parallel interface and offers step resolutions of 1 and 1/2. Packaged in a 22-DIP (0.400

Feature Summary

• Fully integrated control and power stage for bipolar stepper motors.
• Supports full-step and half-step resolution modes via parallel interface.
• Includes built-in protection mechanisms against overcurrent and thermal overload.

Applications

• General purpose stepper motor control systems.
• Office automation equipment requiring precise motion control.
• Industrial automation components utilizing bipolar stepper actuators.

Procurement Notes

Verify component authenticity through authorized channels as the part is obsolete. Confirm package integrity upon receipt, as the 22-DIP housing may be susceptible to pin damage during handling. Ensure compatibility with existing system voltage levels before integration into new designs.

Selection Notes

Select this component for applications requiring a standalone bipolar stepper driver with moderate current capabilities. It is suitable for designs needing integrated logic and power stages without external transistors. Consider the DIP package for prototyping or through-hole manufacturing requirements.

Part Context

This device belongs to the NJM3771 series of stepper motor drivers. It serves as a complete solution for driving bipolar stepper motors, combining logic inputs with high-current output stages. The series is designed for general-purpose motion control applications requiring reliable performance.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify if newer series from the manufacturer offer compatible pinouts and electrical specifications for direct replacement.