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© 2021 ROHM Co., Ltd.
No. 63UG134E Rev.001
February.2021
User’s Guide
Automotive Power and Motor Drive
Evaluation Kit for Stepping Motor Driver
BD63800MUF-EVK-001
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 Head-up Display, LED Headlight, Heat pump and Intake Air Control
Valve. This EVK enables the performance evaluation of this IC in research and development laboratories.
● Description
BD63800MUF-EVK-001 is an evaluation board for the
Automotive Stepping Motor Driver IC. Also, SPI master board,
USB cable and a GUI can be provided by ROHM for easy SPI
register configuration.
The key component of the evaluation board is the ROHM
BD63800MUF-C which have the following specifications and
features:
●
BD63800MUF-C Key Specifications:
➢
Supply voltage range…………………….…6.0 to 28 V
➢
Output Current Rating (peak) …..………………1.35 A
➢
Output Current Rating (DC) …..………….........1.20 A
➢
Output On Resistance (up and down) .............0.75 Ω
➢
VCC quiescent supply current (max) …………..10 µA
BD63800MUF-C operates with single power supply which can
simplify the set design.
●
BD63800MUF-C Features:
➢
CLK-IN and SPI-IN Drive mode
➢
Supported Modes:
Full step, 1/2, 1/4, 1/8, 1/16 and 1/32 step
➢
Current Decay Mode Switch Function
- Mix Decay: Linear Adjustment of
Slow Decay / Fast Decay Ratio
- Auto Decay: Automatic Switch of
Slow Decay / Fast Decay
Further features and protections are referred to the datasheet.
Figure 1: BD63800MUF-EVK-001
●
EVK Features
➢
Plug & Play Stepping Motor Evaluation Kit
➢
Providing SPI master control board
BD63800MUF-EVK-001 is also enabled evaluation
with your SPI master.
➢
Graphical User Interface application software
Easy to set/read register.
[Operating System: Windows10]
➢
External Switches for pin setting.
Open or High settings
➢
Test pins for easy signal monitoring
