作者:网站管理员 发布时间:2024-06-11 浏览次数:
这是一款基于东芝TC78B009FTG的无传感器3相无刷电机控制器方案,应用领域:服务器冷却风扇、鼓风机、泵、无绳真空吸尘器、机器人真空吸尘器等。
1. 额定工作电压范围:15.5~21V,适合18V锂电池包平台
2. 支持:正传、反转、刹车和待机功能,满足多种控制场景需求。
3. 通过占空比PWM信号、模拟电压信号和I2C支持速度控制。
4. 通过I2C接口支持各种设置。
5. 无需外部MCU,因为这款IC内置NVM,可用于速度设置。
6. 可选的闭环或开环速度控制。
7. 内部含有过流检测保护,欠压锁定和过温保护,防止潜在安全隐患,使用更安全。
● Sensorless PWM drive
● Capable to drive Delta or Wye configured motors
● Operating voltage: 5.5 to 27V (absolute maximum rating: 30V)
● Predriver for high side and low side N-ch MOSFETs drive
● 8 selectable levels of gate drive current
● Built-in closed loop speed control with adjustable speed curve
● Motor speed control by analog voltage, PWM duty cycle, or I2C
● Serial interface (I2C) for various settings
● Standby mode (by STBY pin)
● Current monitor output (PHBF pin)
● CW/CCW control (CWCCW pin)
● Brake input pin (BRAKE pin)
● Rotation speed output (FG pin)
● Abnormality detection output (ALERT pin)
● Thermal shutdown (TSD)
● Under voltage lockout (UVLO)
● Charge pump low voltage detection (CPVSD)
● Output current limit (OCP)
● Over current detection (ISD)
● Lock protection
● Small QFN36 package
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