BD63717MUV-E2

Overview

The BD63717MUV-E2 is a bipolar stepping motor driver manufactured by ROHM Semiconductor, designed for high-performance applications requiring robust voltage withstand capabilities. It operates within a power supply voltage range of 19 V to 26.4 V, with a maximum rated voltage of 36 V. The device delivers a DC output current of 1.5 A and supports peak currents up to 2 A. It features a low ON resistance DMOS output structure, typically 0.9 Ω. The component utilizes a CLK-IN drive mode and integrates PWM constant current control without the need for external detection resistors. It is housed in a VQFN-24AV4040 package (4.0x4.0 mm) and functions within an operating temperature range of -25 °C to +85 °C.

Feature Summary

• Supports multiple step resolutions including full, half, quarter, 1/8, and 1/16 steps via built-in DAC
• Enables single power supply input to simplify system design
• Offers selectable slow decay or auto decay methods for current control

Applications

• Bipolar stepper motor control systems
• General purpose motion control devices
• Actuator drivers requiring high reliability

Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest documentation to confirm compliance with RoHS directives and environmental standards. Ensure the ordering quantity aligns with the factory pack quantity of 2500 units if purchasing in bulk tape-and-reel format. Confirm that the application environment remains within the specified -25 °C to +85 °C operating temperature range to maintain performance integrity.

Selection Notes

Select this component when a compact solution for bipolar stepper motors is required, specifically where external current sense resistors are undesirable to minimize board space. The CLK-IN interface simplifies logic integration compared to complex parallel interfaces. Consider the 36 V withstand voltage capability for systems experiencing transient voltage spikes, ensuring the selected driver matches the motor's electrical requirements within the 19 V to 26.4 V operational window.

Part Context

This part belongs to ROHM's series of stepping motor drivers characterized by high reliability and low power consumption. The BD63717MUV-E2 variant specifically denotes the lead-free and halogen-free version compliant with environmental regulations. It is categorized under Motor / Motion / Ignition Controllers & Drivers, serving as a specialized PMIC solution for precise motion control tasks in industrial and consumer electronics.

Replacement Considerations

Consult official substitution lists for direct pin-compatible alternatives such as the BD63717MUV. Verify that any substitute maintains the same VQFN-24 package dimensions and thermal characteristics. Ensure the replacement supports the required 1.5 A continuous current and 36 V max voltage rating to avoid derating issues in existing designs.