NJM3772D2

Overview

The NJM3772D2 is a 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 1A per phase and features four half-bridge outputs. It utilizes a parallel interface for control signals and integrates full drive, control, and power stages within a single chip. The component is available in a 22-DIP package with a pitch of 0.400 inches (10.16mm). It functions at junction temperatures ranging from -20°C to 125°C.

Feature Summary

• Integrates complete drive, control logic, and power output stages into a single monolithic circuit
• Supports bipolar stepper motors with selectable full-step and half-step resolution modes
• Provides four independent half-bridge output configurations for multi-phase driving

Applications

• General purpose bipolar stepper motor control systems
• Industrial automation equipment requiring integrated motor driving
• Precision positioning mechanisms utilizing standard bipolar stepper actuators

Procurement Notes

This component is officially listed as inactive or end-of-life status. Verification of availability requires checking distributor stock levels or secondary market sources. Ensure that any replacement sourcing accounts for the discontinuation notice dated December 20, 2018. Confirm RoHS compliance and MSL level 1 status if required for specific manufacturing processes.

Selection Notes

Select this part when a fully integrated solution for bipolar stepper motors is required without external power transistors. The 1A output current rating suits moderate load applications. The 22-DIP package facilitates through-hole mounting for prototyping or legacy board designs. Verify that the system load voltage does not exceed the 40V maximum limit.

Part Context

The NJM3772D2 belongs to the NJM3772 family of bipolar stepper motor drivers. It shares functional similarities with related models such as the NJM3771D2, which offers lower current capacity, and the NJM37717D2, which supports higher load voltages. These components share common interface protocols and integration styles within the manufacturer's motor control portfolio.

Replacement Considerations

No public confirmed substitute part numbers are documented in the provided source material.