BD62321HFP is a full bridge driver for brush motor applications. This IC can operate at a wide range of power-supply voltages (from 6V to 32V), supporting output currents of up to 3A. MOS transistors in the output stage allow for PWM signal control. The replacement is also easy because of the pin compatible with BD623XHFP series.
The BD62321HFP is a full‑bridge driver for brush‑motor applications. It operates from 6 V to 32 V supply voltage and can deliver up to 3 A output current. The device uses MOSFET output stages, supports PWM control (20 kHz‑100 kHz), and includes built‑in protection circuits such as OCP, OVP, UVLO, TSD and SAP.
The note details functional descriptions, pin assignments, thermal design guidelines, and ordering information. It also explains the four basic operation modes (stand‑by, forward, reverse, brake) and the PWM control mode, together with the associated protection and safety circuits.
| Supply voltage range | 6 V – 32 V |
|---|---|
| Maximum output current | 3 A |
| Stand‑by current | 0 – 10 µA |
| Operating temperature range | -40 °C – +85 °C |
| Power dissipation | 14 W |
| Maximum junction temperature | 150 °C |
| PWM frequency range | 20 kHz – 100 kHz |
The device operates from 6 V to 32 V supply voltage.
It includes over‑current (OCP), over‑voltage (OVP), thermal shutdown (TSD), under‑voltage lock‑out (UVLO) and safe‑area protection (SAP) circuits.
PWM signals can be applied between 20 kHz and 100 kHz.