FT3216

FT3216 Three Phase Sensorless BLDC Motor Driver FT3216 Overview The FT3216 is a Three Phase sensorless BLDC motor driver. Due to its adaptive features and wide power-supply range capabilities, it is intended to cover a wide range of motor characteristics, while requiring minimal tuning from the user. Speed adjustment can be achieved through either direct-PWM or analog voltage control. Speed indicator is provided through a Frequency Generator output, generating digital pulse with its frequency proportional to the speed of the motor. Protection functions of FT3216 are comprehensive including lock protection and automatic recovery, under voltage, thermal shutdown, current limit and over current protections. These prevent the control circuits and the motor from being damaged, particularly under stressed applications and demanding environments. Features  Position sensorless BLDC controller  Selectable soft switch SBLDC (150°) or BLDC (120°) drives  PWM speed input  Analog speed input  Soft start  FG (Frequency Generator) and RD (Rotation detection) output  Current limit and internal over current protection  Lock protection  Built-in thermal shutdown protection (TSD)  Built-in Under Voltage Lock Out（UVLO）  Low Rds (1.0Ω) Block Diagram VDD5 FG F/R PWM START BRAKE TMODE SREF LDO EFUSE Saw Tooth Generator SMIN xa RD Control Engine PreDriver RSF RPI RSD SKEW ADC OCP TSD UVLO BEMF Lock Protection OSC vref VCC MOT_U MOT_V MOT_W RNF VSS REV_Preliminary 2 ...