NJM37717E2

Overview

The NJM37717E2 is a bipolar stepper motor driver manufactured by Nisshinbo Micro Devices Inc. It integrates logic input, current sensing, monostable multivibrator, and an H-bridge output stage with built-in protection diodes. The device supports 1 or 1/2 step resolution via parallel interface. Supply voltage ranges from 4.75V to 5.25V, while load voltage spans 10V to 56V. Output current reaches up to 1A (datasheet notes 1200mA). Operating temperature is -20°C to 125°C TJ. Package is 24-EMP (Surface Mount).

Feature Summary

• Full integration of control and power stages for stepper motor systems.
• LS-TTL compatible logic input stage for direct interfacing.
• Built-in protection diodes within the high-power H-bridge output.

Applications

• General purpose stepper motor drive units.
• Systems requiring full integrated control and power levels.

Procurement Notes

Verify the specific suffix E2 against official datasheets to confirm package type and pinout compatibility. Confirm RoHS status and moisture sensitivity level requirements for your assembly process. Ensure supply voltage constraints align with system design before procurement.

Selection Notes

Select this component when a fully integrated bipolar stepper driver is required with LS-TTL inputs. Verify that the 24-EMP surface mount package fits the PCB layout. Check if the 1A output current meets the motor requirements compared to the 1200mA capability noted in documentation.

Part Context

This part belongs to the NJM37717 family, which includes variants like NJM37717D2 (16-DIP) and NJM37717E3. It serves as a high-voltage version pin-compatible with the older NJM3717 model. The series provides complete control and drive solutions using minimal external components.

Replacement Considerations

NJM37717E3 is a documented variant within the same family. Verify package differences between EMP and other suffixes before substitution.