小家电驱动方案-普诚PT2502水泵方案PT2522/PT5126

小家电驱动方案水泵方案/PT2522/PT5126
普诚PT2502

3-Phase Sensor-less BLDC Motor Controller 
Tel: 886-2-66296288‧Fax: 886-2-29174598‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
DESCRIPTION
PT2502 is an integrated 12V 3-phase sensor-less (no 
Hall sensor required) BLDC motor controller. Threephase motor control with square/trapezoidal wave is 
based on detecting a zero-crossing ** 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.
PT2502 provides an internal +5V voltage regulator to 
supply power to the analog and digital blocks. For 
400V high-voltage motor control applications, an 
external high voltage gate driver and six N-channel 
MOSFETs are required. 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.