| 型號(hào)： | PT2502 |
| 廠 商： | |
| 品牌/商標(biāo): | PCT/普誠(chéng) |
| 產(chǎn)品類別： | 集成電路/IC- AC/DC電源芯片 |
| 聯(lián)系人: | 顏先生/William |
| 電話： | 0755-82170220,21001680 |
代理普誠(chéng) PT2502 三相無刷直流馬達(dá)控制芯片
DESCRIPTION
PT2502 is an integrated 12V 3-phase sensor-less (noHall sensor required) BLDC motor controller. Threephase motor control with square/trapezoidal wave isbased on detecting a zero-crossing signal generatedfrom the motor back-EMF (BEMF) and providesrobust control stability that is not easily affected bydifferent motors. Soft-switching control technologyoutputs trapezoidal/quasi-sinusoidal-wave currentand further reduces audible electro-current noise.PT2502 provides an internal +5V voltage regulator tosupply power to the analog and digital blocks. For400V high-voltage motor control applications, anexternal high voltage gate driver and six N-channelMOSFETs are required. For 12V to 24V operation,PT2502 can drive high-side P-channel MOSFET andlow-side N-channel MOSFET with a simple levelshifter circuit. Optimized parameter settings fordifferent motors and applications may be written toOTP memory. The PT2502 is provided in an SSOP28package.
FEATURES
● 3-phase sensor-less BL .DC control
● Intemal +5V regulator and 5V - 24V power application
● Internal OTP write support for motor parameters
● I2C interface for parameter seting
● Over-current protection and over-voltage protection
● Thermal protection function with an extemal NTC resistor
● Lock protect function
● PWM or DC control input support for motor speed control
● FG output function
APPLICATIONS
● 3-phase sensor-less BLDC motor controller
● High speed fan
● Water pump
