PTC PT2522
The PT2522 is a three-phase, sensor-less brushless DC motor control driver chip. The three-phase control is based on a square /trapezoidal wave control method that detects the zero-crossing of the motor back electromotive force (BEMF). It has a stable control and is not be affected by motor easily differences.| Part No. | PT2522 |
|---|---|
| Datasheet | PT2522 Download |
| Manufacturer |  PTC |
| Description | Sensor-less BLDC Controller |
| Buy | Stock & Price |
DESCRIPTION
The chip's soft-switching technology can achieve ladder or sinusoidal current waveforms, further reducing phase electromagnetic noise. The on-chip + 5V LDO provides operational operation for both logic and analog circuitry. It also integrates three 90V halfbridge gate drivers, making it ideal for gate drive of high-speed power MOSFETs and IGBTs in three-phase motor applications. The PT2522 provides a way to change internal parameter settings by burning to optimize different motors and applications. The package of the PT2522 is LQFP32. Preliminary PT2522 3 Phase Sensor-less BLDC Controller with Pre-driverFEATURES
● Sensor-less three-phase brushless DC motor control driver chip.● Integrated three 90V half-bridge gate drivers.
● Driver pull-out/inrush current: 1200mA/2000mA.
● Built-in +5V LDO, 5V ~ 24V power supply.
● OTP burning motor control parameters.
● Set OTP parameters through I2C.
● Current limit and overvoltage protection.
● Temperature protection function (using external NTC resistor)
● Stall protection function
● PWM or DC input speed control.
