PTC PT2502
PT2502 is an integrated 12V 3-phase sensor-less (no Hall sensor required) BLDC motor controller. For 400V high-voltage motor control applications, an external high voltage gate driver and six N-channel MOSFETs are required. PT2502 provides an internal +5V voltage regulator to supply power to the analog and digital blocks.DESCRIPTION
Threephase motor control with square/trapezoidal wave is based on detecting a zero-crossing signal generated from the motor back-EMF (BEMF) and provides robust control stability that is not easily affected by different motors. Soft-switching control technology outputs trapezoidal/quasi-sinusoidal-wave current and further reduces audible electro-current noise. For 12V to 24V operation, PT2502 can drive high-side P-channel MOSFET and low-side N-channel MOSFET with a simple level shifter circuit. Optimized parameter settings for different motors and applications may be written to OTP memory. The PT2502 is provided in an SSOP28 package.FEATURES
● 3-phase sensor-less BLDC control● Internal +5V regulator and 5V – 24V power application
● Internal OTP write support for motor parameters
● I2C interface for parameter setting
● Over-current protection and over-voltage protection
● Thermal protection function with an external NTC resistor
● Lock protect function
● PWM or DC control i...