FT3107T

` FT3107T Three Phase Sensorless BLDC Motor Controller Description The FT3107T is a Three Phase sensorless BLDC Motor controller. It provides several drive modes (BLDC, Pseudo-BLDC, Pseudo-SINE, Narrow BLDC) with constant/variable lead angle intended for a wide range of motor characteristics. Open/Closed loop speed adjustment can be achieved through either direct-PWM or analog voltage or frequency control, initiated by soft-start. Speed indicator is provided through a Frequency Generator output, generating digital pulse with a configurable frequency proportional to the speed of the motor. Protection functions of FT3107T are comprehensive including lock protection and automatic recovery, thermal shutdown and current limit protections. These prevent the control circuits and the motor from being damaged, particularly under stressed applications and demanding environments. Feature  Sensorless BLDC/Pseudo-BLDC /Pseudo-SINE/Narrow BLDC drives  Two speed adjustment methods can be selected (direct-PWM and analog voltage control)  Intelligent Soft-start  Constant/Variable lead angle control  Open/Closed loop speed adjustment can be selected (direct-PWM and analog voltage control).  FG (Frequency Generator) output  Current limit protection  Built-in lock protection and automatic recovery circuit  Built-in thermal shutdown protection (TSD) FR TM BRAKE SPEED/PWM Block Diagram VDD5 VREG10 FG LDO VCC VSS Control Engine ADC xa TSD UVLO BEMF High Side Driver Low Side...