The HT46R005 is an integrated circuit (IC) designed and manufactured by Holtek. It is available in a SOP-8 RoHS package which is compliant with Restrictions on Hazardous Substances (RoHS) regulations. It is designed for motor control applications or power conversion applications. It features an 8-bit microcontroller, on-chip flash-based memory, and integrated motor driver I/O pins for control of three-phase brushless DC motors. The device is also said to have advanced functions for precise speed control such as PWM generation, current sensing, and zero crossing detection. Additionally, it includes dual power supply for 3.3V and 5V logic and motor supply operations.