BLDC Pre Drivers and Integrated Solutions


PT2502

PT2502 is a 3 phase, sensor-less brushless DC motor control IC with square wave/trapezoidal wave control method based on detecting the zero-crossing of the motor back electromotive force (BEMF). It has a stable control effect and is not easily affected by motor differences. The IC's built-in +5V LDO provides operation for logic circuits and analog circuits. With an external high voltage gate driver and six N-channel MOSFETs, the PT2502 is capable of operating high voltage motors up to 400V. For 12V to 24V operation, external high side P-MOSFETs and low side N-MOSFETs can be driven motor through a simple circuit. PT2502 provides internal OTP to store parameter settings to optimize different motors and applications. The package of PT2502 is SSOP28.

FEATURES


● 3-phase sensor-less BLDC control

● 5V – 24V power application with internal 5V LDO

● Internal OTP for parameters setting

● I2C interface for parameter setting

● Over-current protection and over-voltage protection

● Thermal shutdown protection function with an external NTC resistor

● Lock protect function

● PWM or DC control input support for motor speed control

● FG output function

● Package Type - SSOP 28


APPLICATIONS


● 3-phase sensor-less BLDC motor controller

● High speed fan

● Water pump

資源下載

Documentation

Tools

Application Note