40V Max Stepping Motor Driver for Automotive BD63800MUF-C Application Note

2021-11-16
The ROHM BD63800MUF-C is an AEC-Q100 automotive qualified bipolar low-consumption stepping motor driver that is driven by PWM current. It is suitable for Automotive applications such as LED Headlight, Heat pump, Intake Air Control Valve and Head-up Display. This document describes how to design the external circuit and PCB layout in order to operate the stepping motor safety and efficiency. Moreover, it guides standard start up sequence how to set parameter for stall detection and decay mode simply with some attentions.
●Features:
■ CLK-IN and SPI-IN Drive mode
■ Supported stepping Modes: Full step, 1/2, 1/4, 1/8, 1/16 and 1/32 step
■ Current Decay Mode Switch Function: Fast, Slow, Mix, Auto
▲ Mix Decay: Linear Adjustment of Slow Decay and Fast Decay Ratio with external pin.
▲ Auto Decay: Automatic Switch of Slow Decay and Fast Decay.
▲Further features and protections are referred to the datasheet.

ROHM

BD63800MUF-C

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Part#

Stepping Motor Driverqualified bipolar low-consumption stepping motor driver

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Automotive ]Automotive Power ]Motor Drive ]LED leadlight ]Heat pump ]Intake Air control ]Head-up display ]

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Application note & Design Guide

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Please see the document for details

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English Chinese Chinese and English Japanese

February.2020

Rev.001

63AN162E

2.3 MB

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