ROHM BD6380EFV Technical Note
Summary
These low-power bipolar constant current drivers are engineered to precisely control stepping motors used in various precision devices. Ideal for designers building battery-operated or mini-scale equipment, they offer reliable performance with advanced features like power saving modes, internal spike noise cancellation, and comprehensive protection (OCP/UVLO). This manual provides deep technical specifications covering electrical characteristics, operational limits, terminal functions, and application details, ensuring proper integration into devices such as printers, webcams, scanners, and robots.
Page 1 Text Content
Stepping Motor Drivers
Low Voltage Stepping Motor Drivers
BD6380EFV, BD6381EFV No.12009EAT01
●Description This series can drive the bipolar stepping motor used for paper feed carriages. It is a low power consumption bipolar PWM constant current-drive driver. It is suitable for the mobile devices of a battery drive by power save function. It contributes also to reduction of mounting area by ultra-thin and high heat-radiation (exposed metal type) HTSSOP package.
●Feature 1) Low ON resistance DMOS output 2) PWM constant current control (self oscillation) 3) Built-in spike noise cancel function (external noise filter is unnecessary) 4) Power save function 5) Built-in logic input pull-down resistor 6) Power-on reset function 7) Thermal shutdown circuit (TSD) 8) Over current protection circuit (OCP) 9) Under voltage lock out circuit (UVLO) 10) Malfunction prevention at the time of no applied power supply (Ghost Supply Prevention) 11) Electrostatic discharge: 4k V (HBM specification) 12) Adjacent pins short protection 13) Microminiature, ultra-thin and high heat-radiation (exposed metal type) HTSSOP package
●Application Mini printer, Handy printer, Monitoring camera, WEB camera, Scanner, Toy, and Robot etc.
●Absolute maximum ratings(Ta=25℃)
Item Symbol BD6380EFV BD6381EFV Unit
Supply voltage VCC VCC -0.2～+7.0 -0.2～+7.0 V Supply voltage VM VM -0.2～+15.0 -0.2～+15.0 V
Power dissipation Pd
Input voltage for control pin VIN -0.2～(VCC +0.3) -0.2～(VCC +0.3) V RNF maximum voltage VRNF 0.5 0.5 V Maximum output current IOUT 0.8※3 1.2※3 A/ch Operating temperature range Topr -25～+75 -25～+75 ℃ Storage temperature range Tstg -55～+150 -55～+150 ℃ Junction temperature Tjmax 150 150 ℃ ※1 70mm×70mm×1.6mm glass epoxy board. Derating in done at 8.8m W/℃ for operating above Ta=25℃. ※2 4-layer recommended board. Derating in done at 32.0m W/℃ for operating above Ta=25℃. ※3 Do not exceed Pd, ASO and Tjmax=150℃.
www.rohm.com 2012.02 - Rev.A
© 2012 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For ROHM BD6380EFV Technical Note
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 9 |
| File Size | 230.79 KB |
| Published | July 22, 2026 |
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Frequently Asked Questions
What is the ideal application for this stepping motor driver?
It is suitable for miniature printers, handy printers, web cameras, scanners, toys, and robots.
Does it have built-in protection features?
Yes, it includes Over Current Protection (OCP), Under Voltage Lock Out (UVLO), and Adjacent pins short protection.
Is a separate noise filter needed?
No; the device has a built-in spike noise cancel function, making external noise filters unnecessary.
What is the operational temperature range of the units?
The operating temperature range is -25℃ to +75℃.