NJM37717D2

Overview

The NJM37717D2 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 56V. The device delivers an output current of 1A and features a parallel interface with half-bridge (2) output configuration. Packaged in a 16-DIP format, it supports step resolutions of 1 and 1/2. The component functions as a fully integrated driver with control and power stages, suitable for general applications within a junction temperature range of -20°C to 125°C.

Feature Summary

• Fully integrated design combining logic input stage, current sensor, monostable multivibrator, and high-power H-bridge output stage with built-in protection diodes.
• LS-TTL compatible logic input stage facilitates direct interfacing with standard digital logic circuits.
• Supports bipolar stepper motors with selectable step resolutions of full step (1) and half step (1/2).
• Includes internal protection mechanisms such as thermal shutdown and current limiting to ensure operational reliability.

Applications

• General purpose bipolar stepper motor control systems
• Industrial automation equipment requiring precise motion control
• Office automation devices utilizing small stepper motors

Procurement Notes

Verify the specific manufacturer part number NJM37717D2 against official Nisshinbo Micro Devices Inc. documentation to confirm current availability status. Ensure that the required operating voltage and load specifications align with the 4.75V-5.25V supply and 10V-56V load ranges. Confirm package compatibility with the 16-DIP footprint before integration into the design.

Selection Notes

Select this component when a fully integrated bipolar stepper driver is required with a 1A output capability. It is appropriate for designs needing LS-TTL compatible inputs and support for both full and half-step resolution modes. Consider the 16-DIP package for through-hole mounting requirements and verify that the load voltage does not exceed 56V.

Part Context

The NJM37717D2 belongs to the NJM3771 series of stepper motor drivers produced by Nisshinbo Micro Devices Inc. This series is designed to provide complete drive solutions for bipolar stepper motors, integrating necessary control logic and power stages into a single package to simplify circuit design and reduce component count.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing designs by comparing pin configurations, electrical parameters, and package dimensions with alternative components from the same manufacturer or other suppliers.