BD6380EFV/BD6381EFV is a low power consumption bipolar step motor driver launched by ROHM. It is suitable for battery powered mobile devices. The series features low on resistance DMOS output, PWM constant current control, built-in spike noise cancellation function, low power consumption function, built-in logic input pull-down resistor, power-on reset function, thermal shutdown circuit, over current protection circuit, under voltage lockout circuit, malfunction prevention at the time of no applied power supply (Ghost Supply Prevention), electrostatic discharge: 4kV (HBM specification), adjacent pins short protection, etc.
The BD6380EFV (and BD6381EFV) is a low‑power consumption bipolar PWM constant‑current driver designed for driving bipolar stepping motors in battery‑powered mobile devices. It is offered in an ultra‑thin HTSSOP‑B24 package with exposed metal for efficient heat dissipation.
The note provides detailed electrical characteristics, pin functions, protection circuits (thermal shutdown, over‑current, UVLO, ghost‑supply prevention), recommended PCB layout, and ordering information. It also lists typical applications such as mini printers, handheld scanners, cameras, toys, and robots.
| Operating temperature range | -25 °C ~ +475 °C |
|---|---|
| Thermal shutdown typical temperature | 175 °C |
| Under‑voltage lock‑out threshold | 1.95 V (typ.) |
It is supplied in an HTSSOP‑B24 package with exposed metal on the back for heat dissipation.