THMC40 Overview
The THMC40 and THMC41 are 2-phase, dc brushless motor (BLM) drive and control devices intended for use with 12-Vdc cooling fans. Both devices include a high-efficiency PWM drive topology using integrated 0.5-Ω (typical) LDMOS drivers, plus a speed control input stage to provide the industry’s first solution for efficient speed control inside dc cooling fans. This patented solution eliminates the need for power drive...