This document describes the features and characteristics of the BD623xxx series DC brush motor drivers produced by ROHM. These drivers are full bridge drivers for brush motor applications, with selectable one channel or two channels configuration, VREF voltage setting pin for PWM duty control, cross-conduction prevention circuit, and four protection circuits. The product is suitable for applications such as VTR, CD/DVD players, audio-visual equipment, optical disc drives, PC peripherals, and OA equipment.
The BD6231HFP is a full‑bridge H‑bridge driver IC for brush motor applications. It operates from a wide supply voltage range (6 V to 32 V recommended, up to 36 V max) and delivers up to 2 A output current with selectable single‑ or dual‑channel configurations. Integrated features include PWM speed control, VREF voltage setting, and four protection circuits (OCP, OVP, TSD, UVLO).
Key specifications such as supply voltage, output current, PWM frequency, and operating temperature are listed, along with package options (SOP8, HSOP25, HSOP‑M28, HRP7). The datasheet also contains typical performance curves, pin‑out diagrams, and mounting precautions for reliable PCB design.
| Supply voltage (max) | 36 V |
|---|---|
| Recommended supply voltage | 6 V to 32 V |
| Maximum output current | 0.5 A / 1.0 A / 2.0 A |
| PWM input frequency range | 20 kHz to 100 kHz |
| Operating temperature range | -40 °C to +85 °C |
| Protection circuits | OCP, OVP, TSD, UVLO |
| Package dimensions (SOP8) | 5.00 mm × 6.20 mm × 1.71 mm |
The device can operate from 6 V to 32 V under normal conditions and up to 36 V maximum.
It includes over‑current protection (OCP), over‑voltage protection (OVP), thermal shutdown (TSD), and undervoltage lock‑out (UVLO).
The IC is offered in SOP8, HSOP25, HSOP‑M28, and HRP7 packages.