This document describes a single-phase full-wave motor driver with features such as soft switched drive and absolute maximum ratings.
This document describes the ROHM BH6789FVM single‑phase full‑wave motor driver IC. It lists absolute maximum ratings, operating conditions, electrical characteristics, package dimensions, and a block diagram of the device.
The datasheet also includes extensive cautions on use, such as protection against reverse polarity, back‑EMF handling, thermal design, and guidelines for PCB layout and grounding. An appendix contains legal and export information.
| Supply voltage (Vec) | 7 V |
|---|---|
| Power dissipation (Pd) | 585 mW |
| Output current (Imax) | 1000 mA |
| Operating temperature range | -40~+105 °C |
| Junction temperature (Tjmax) | 150 °F |
| Operating supply voltage range (Voc) | 2.0~6.0 V |
| Hall input voltage range (VH) | 0.4~Vec‑1.1 V |
When the IC temperature exceeds about 175 °C, the TSD circuit opens the output to prevent thermal runaway.