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Automotive Power and Motor Drive
Evaluation Kit for Stepping Motor Driver
BD63800MUF-EVK-002
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-002 is an evaluation board for the
Automotive Stepping Motor Driver IC. Also, 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.
© 2021 ROHM Co., Ltd.
Figure 1: BD63800MUF-EVK-002
● EVK Features
Plug & Play Stepping Motor Evaluation Kit
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
1/24
User's Guide
No. 63UG134E Rev.003
October.2023
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Summary of Contents for Rohm BD63800MUF-EVK-002
- Page 1 Evaluation Kit for Stepping Motor Driver BD63800MUF-EVK-002 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.
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Page 2: Table Of Contents
Stall Detect Counter Setting ...................... 21 4.2.18 BEMF Gain Setting ........................21 4.2.19 Control Register Map ........................ 22 4.2.20 DIAG Selection(DIAG1) ......................22 4.2.21 DIAG Selection(DIAG2) ......................23 4.2.22 Status Register ........................23 © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 2/24 October.2023... -
Page 3: Introduction
User’s Guide Introduction This evaluation kit (EVK) manual describes the usage of ROHM’s BD63800MUF-EVK-002. The purpose of the EVK is to allow the test and evaluation of the stepping motor driver IC BD63800MUF-C in professional research and development environments. This document provides guidelines to quickly setup the hardware and software for fast and easy stepping motor driver IC performance evaluation. -
Page 4: Safety Instructions
Do not operate the evaluation kit outside its specified ratings. Take care to monitor the PCB and IC temperatures in particular when operating with high power loads and do not exceed the absolute maximum ratings of all components. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 4/24 October.2023... -
Page 5: Hardware Description
BD63800MUF-EVK-002 User’s Guide Hardware Description 3.1 Schematic Figure 3: Evaluation Board Schematic © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 5/24 October.2023... -
Page 6: Pcb Layout And Component Placement
The focus is more on enabling easy test by adding test points to each signal. All pictures are viewed as seen from TOP side. Figure 4: TOP side PCB with Pads and Silkscreen Figure 5: Bottom side with Pads and Silkscreen © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 6/24... - Page 7 BD63800MUF-EVK-002 User’s Guide Figure 6: Top layer Figure 7: 2 layer © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 7/24 October.2023...
- Page 8 BD63800MUF-EVK-002 User’s Guide Figure 8: 3 layer Figure 9: Bottom layer © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 8/24 October.2023...
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Page 9: Bill Of Materials
IC EEPROM 64KBIT I2C 8SOIC IC BUF NON-INVERT 5.5V 74LVC4T3144PW-Q10J 14TSSOPLINEAR 3.3V 500MA 8SOIC TPS77533D IC REG LINEAR 3.3V 500MA 8SOIC ECS-240-20-23A-EN-TR CRYSTAL 24.0000MHZ 20PF SMD Table 1: Evaluation Board Bill of Materials © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 9/24 October.2023... -
Page 10: Operating Instructions
6 to 28V USB Cable A-Male to C-Male Vcc GND OUT2A OUT2B OUT1B OUT1A Load BD63800MUF-EVK-002 Bipolar DC Step Motor Clock Signal Generator 0V(Low) – 5V(High) Output Figure 10: BD63800MUF-EVK-002 Setup © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 10/24 October.2023... - Page 11 Please operate the EVK at room temperature only. The maximum load current should be limited by thermal performance of the components. Please take care to measure the temperature of the EVK components when applying your desired settings and load. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 11/24 October.2023...
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Page 12: Software
Interface) software is enabled to set command and read status register easily. Followings are the setting parameter examples on the software. For detail of the software manual, receiving software, please contact to your ROHM sales office or use the general ROHM customer support system. -
Page 13: Bd63800Muf-C Gui Overview 1
14. Stall Detect Counter Setting 15. BEMF Gain Setting 8. Don’t use Green : Connected, Yellow : Initializing, Red: Not Connected 4.2.2 BD63800MUF-C GUI Overview 2 18. Status Register Map © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 13/24 October.2023... -
Page 14: Rotation Direction Setting
Selected setting is reflected when SEND button is pushed. Setting either Run or Hold Modes is possible by pushing the button. In Hold Mode, motor position is held constant by setting Hold Mode Electric Current. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 14/24 October.2023... -
Page 15: Motor Enable Setting
To enable Hold Mode, click UVM3, UVM2 and UVM0 and/or confirm blue highlight when ①,② are pushed. To disable Hold Mode, click UVM3, UVM2 and UVM0 again and/or confirm ｓgray highlight when ①,② are pushed. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 15/24 October.2023... -
Page 16: Output Electric Current Setting(Hold Mode)
Current value, in percentage of the maximum current, is settable by a pull-down menu. The output current level is displayed by IRUN when external resistance value is inputted into RREF Value. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 16/24... -
Page 17: Output Slew Rate Setting
Selected setting is reflected when SEND button is pushed. Output Slew Rate is settable. 4.2.10 Excitation Mode Setting Selected setting is reflected when SEND button is pushed. Excitation mode is selected thru a pull-down menu. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 17/24 October.2023... -
Page 18: Clock Input Setting
Selected setting is reflected when SEND button is pushed. Under Voltage Protection Level is selected thru a pull-down menu. The ON / OFF values change when a register value is chosen. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 18/24... -
Page 19: Thermal Warning Setting
Stall Detect Threshold Setting Selected setting is reflected when SEND button is pushed. Stall Detect Threshold Level is selected thru a slide bar. The Threshold change in response to the slide bar. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 19/24 October.2023... -
Page 20: Stall Detect Rotation Speed Setting
When it is shorter than the CLK period set, Stall Detect will be triggered. 4.2.16 Stall Detect Hysteresis Setting Selected setting is reflected when SEND button is pushed. Stall Detect Hysteresis Level is selected thru a pull-down menu. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 20/24 October.2023... -
Page 21: Stall Detect Counter Setting
90˚. At 720˚, Stall state is continued at 8. 4.2.18 BEMF Gain Setting Selected setting is reflected when SEND button is pushed. BEMF Gain value is selected thru a pull-down menu. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 21/24 October.2023... -
Page 22: Control Register Map
“Reset” button resets all commands from all addresses. 4.2.20 DIAG Selection(DIAG1) Selected setting is reflected when SEND button is pushed. When a selected protect function detected, DIAG1 becomes ‘L’. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 22/24 October.2023... -
Page 23: Diag Selection(Diag2)
Thru a pull-down menu, the selected register When the “READ ALL” button is pushed, address would update the status of each register in it when “READ” button is pushed. the register of all addresses is updated. © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 23/24 October.2023... - Page 24 BD63800MUF-EVK-002 User’s Guide Revision History Date Revision Number Description Feb. 2021 New Release Feb. 2022 Update EVK version Oct. 2023 Add software information © 2021 ROHM Co., Ltd. No. 63UG134E Rev.003 24/24 October.2023...
- Page 25 Specific Applications). Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses, or losses incurred by you or third parties arising from the use of ROHM Products for Specific Applications.
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