PT-30DFT is a H-bridge driver IC for driving single-coil DC brushless motors.
The document describes the Prolific PT-30DFT, a DC brushless motor driver integrated circuit available in an SOP8 package. It supports supply voltages from 3V to 18V and features a single-phase full-wave driver architecture.
Key functional blocks include built-in hysteresis comparators for noise elimination, motor lock protection with automatic restart capabilities, and outputs for frequency generation (FG) and rotation detection/alarm (RD). The datasheet provides absolute maximum ratings, electrical characteristics, truth tables, and application circuit diagrams.
| Supply Voltage | 3.0V ~ 18V |
|---|---|
| Package Type | SOP8 |
| Maximum Supply Voltage | 18 V |
| Allowable Power Dissipation | 650 mW |
| Operating Temperature Range | -30 ~ +100 C |
| Output Current (Continuous) | 400 mA |
The driver IC generates a square wave to indicate the motor rotation frequency.
It outputs a high signal to indicate that the motor has stopped.
The IC shuts down the drive when the motor is locked for over 0.3 seconds and restarts after 2.1 seconds.