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PT2522 - Sensor-less BLDC Controller

General Description

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).

Key Features

  • 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.
  • FG s.

📥 Download Datasheet

Datasheet Details

Part number PT2522
Manufacturer PTC
File Size 1.02 MB
Description Sensor-less BLDC Controller
Datasheet download datasheet PT2522 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DESCRIPTION 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. 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.