NJM3773D2

Overview

The NJM3773D2 is a fully integrated bipolar stepper motor driver manufactured by Nisshinbo Micro Devices Inc. It combines control logic and power stages in a single package, designed for general-purpose applications. The device operates with a supply voltage range of 4.75V to 5.25V and supports load voltages from 10V to 40V. It features a parallel interface and delivers an output current of 750mA. The component utilizes a 22-DIP (0.400 inch) through-hole package and supports step resolutions of 1 and 1/2. It functions within a junction temperature range of -20°C to 125°C.

Feature Summary

• Integrates full control and power stages for bipolar stepper motors
• Supports 1 and 1/2 step resolution modes
• Features four half-bridge outputs with parallel interface

Applications

• General purpose stepper motor control systems

Procurement Notes

Verify component status carefully as the NJM3773D2 is officially listed as obsolete. Confirm availability through authorized channels or secondary markets if sourcing is required. Check datasheets for any product change notifications or end-of-life notices prior to integration into new designs.

Selection Notes

Select this component for applications requiring a fully integrated solution for bipolar stepper motors with moderate current demands. Ensure the design accommodates the specific 4.75V to 5.25V logic supply requirement. Verify that the 22-DIP package fits the PCB layout constraints and that the thermal characteristics support the operating environment.

Part Context

This part belongs to the NJM3773 series of stepper motor drivers. It is distinct from other variants like the NJM3772D2 which offers higher current capacity. The D2 suffix indicates the specific 22-DIP package configuration used for through-hole mounting.

Replacement Considerations

No public confirmed substitute part numbers are available.