PT-30DFT is a DC brushless motor driver IC suitable for single-coil DC brushless motors. It features single-phase full-wave driver, motor lock protection and automatic restart, connectable direct to Hall element, built-in hysteresis comparator, frequency generation output, rotate detection (alarm) output, low power consumption, and high driving efficiency.
The document describes the Prolific PT-30DFT, an integrated circuit designed as a H-Bridge driver for single-coil DC brushless motors. It operates within a supply voltage range of 3V to 18V and features a built-in hysteresis comparator to eliminate noisy oscillations.
Key functional characteristics include motor lock protection that shuts down the driver if the motor is locked for over 0.3 seconds, followed by an automatic restart after 2.1 seconds. The IC also provides Frequency Generation (FG) output and Rotation Detection (RD) alarm outputs to indicate motor status.
| Supply Voltage | 3.0V ~ 18V |
|---|---|
| Allowable Power Dissipation | 650 mW |
| Operating Temperature | -30 ~ +100 C |
| Output Current (Continuous) | 400 mA |
| Output Current (Peak) | 600 mA |
The driver IC shuts down to drive the coil for over 0.3 seconds, then restarts after 2.1 seconds.
The RD output indicates a high signal when the motor stops and a low signal during normal operation.