BD6941FM is a 1.25A reversible motor driver from ROHM, which can control a DC motor in four modes (Forward, Reverse, Standby, Brake) corresponding to two control logic inputs.
The BD6941FM is a reversible motor driver IC designed for automotive body‑control applications. It supports four operating modes (Forward, Reverse, Standby, Brake) using two logic inputs and includes built‑in surge‑absorbing diodes, over‑current and over‑voltage protection, and a thermal shutdown monitor.
The document lists absolute maximum ratings, electrical characteristics, pin functions, timing charts, and ordering details. It also gives design notes on thermal management, PCB layout, and handling precautions for reliable integration into electronic systems.
| Supply Voltage (Operating Range) | 8.0 ~ 16.0 V |
|---|---|
| Operating Temperature | -40 ~ 105 °C |
| Junction Temperature (max) | 150 °C |
| Input Voltage Range | -0.3 ~ 20 V |
| Over‑Voltage Lockout (typical) | 30 V |
| Over‑Current Protection Turn‑off Current (typical) | 2.25 A |
It operates with a supply voltage between 8.0 V and 16.0 V.
The over‑voltage lockout typically activates around 30 V.
It is rated for operation from –40 °C up to 105 °C.