BD63730EFV-E2

Overview

The BD63730EFV-E2 is a high-performance, low-power bipolar stepper motor driver with a rated output current of 3.0A and a maximum power supply voltage of 36V. It supports CLK-IN and PARALLEL-IN drive modes, offering full-step, half-step, and quarter-step functionality via an internal DAC. The device features PWM constant current control, linearly variable fast/slow decay ratios, and single power supply input. Key protection circuits include thermal shutdown (TSD), over-current protection (OCP), and under-voltage lockout (UVLO).

Feature Summary

• Supports both CLK-IN and PARALLEL-IN drive interfaces for flexible system integration.
• Enables dynamic switching between full-step, half-step, and quarter-step excitation modes.
• Allows linear adjustment of the FAST/SLOW DECAY ratio for optimized motor control.
• Integrates built-in spike noise cancellation eliminating the need for external filters.

Applications

• Industrial automation equipment requiring precise stepper motor positioning.
• Office automation devices such as printers and scanners.
• General-purpose motion control systems utilizing bipolar stepper motors.

Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm package dimensions and pinout compatibility. Ensure the application environment remains within the specified operating temperature range of -25°C to 85°C. Confirm that the load voltage does not exceed the maximum rating of 36V. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a dual-interface stepper driver supporting both parallel and clock inputs is required. It is suitable for applications needing adjustable current decay modes to reduce motor noise and vibration. Consider the HTSSOP-B54 package for surface-mount designs where higher pin counts facilitate complex control logic integration without external interface chips.

Part Context

This part belongs to ROHM's series of high-reliability bipolar stepper motor drivers designed for standard voltage applications. It shares functional similarities with other models in the family but distinguishes itself through its support for multiple drive interfaces and specific step resolution capabilities. It is categorized under PMIC Motor Drivers and is intended for non-automotive general industrial use.

Replacement Considerations

Direct substitutes may include other ROHM bipolar stepper drivers with similar 3.0A ratings and 36V耐压 capabilities, such as the BD63731EFV-E2, provided the interface requirements (CLK vs. Parallel) and package types are compatible. Verify pin-to-pin compatibility and thermal performance before substitution.

FAQ

Does the BD63730EFV-E2 require an external noise filter?

No, the device includes a built-in spike noise cancel function, making external noise filters unnecessary.

What drive modes are supported by the internal DAC?

The internal DAC supports Full Step, Half Step, and Quarter Step modes.