TB6588FG中文资料精要.doc

TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic 东芝Bi-CMOS集成电路硅单片 TB6588FG PWM Sensorless Driver for 3-Phase Full-Wave BLDC Motors 无刷无霍尔电机三相全波驱动器 The TB6588FG provides sensorless commutation and PWM current control for 3-phase full-wave BLDC motors. It controls rotation speed by changing a PWM duty cycle by analog voltage. （tb6588fg可实现无位置传感器换相及PWM三相全波直流无刷电机的电流控制。它通过模拟电压改变脉宽调制占空比来控制旋转速度。） Features 功能 3-phase full-wave sensorless drive （三相全波无传感器驱动） PWM chopper drive （PWM斩波驱动） PWM duty cycle control by analog input (7-bit AD converter) （通过模拟量输入控制 PWM占空比（7位AD转换器）） Output current: Iout 2.5 A (max), 1.5 A (typ.) （输出电流：电流输出2.5（最大），1.5（典型）） Overcurrent protection 过电流保护 Forward/reverse rotation 正向/反向旋转 Lead angle control (00, 7.50, 150 and 300) 超前角控制（00 ，7.50 , 150,和300） Overlap commutation 重叠换相 Rotation speed detecting signal 转速检测信号 DC excitation mode to improve startup characteristic 直流励磁方式改善启动特性 Adjustable DC excitation time and forced commutation time for startup operation 可调直流励磁时间和启动操作的强制换向时间 Forced commutation frequency control capability (fosc/(6x216 ), fosc/(6x217 ), fosc /(6x218), fosc /(6x219 ) 强制换向频率控制功能(fosc/(6x216 ), fosc/(6x217 ), fosc /(6x218), fosc /(6x219 ) Pin Description引脚描述 Pin No引脚号 Symbol 符号 I/O进/出 Description描述 SGND — Signal ground pin 信号地引脚 SC | Connection pin for a capacitor to set a startup commutation time and ramp-up period during duty-cycle operation 用于占空比操作期间设置启动换向时间和斜坡上升时间的电容连接引脚 FPWM | PWM frequency select input (This pin has a pull-down resistor.) PWM PWM频率选择输入引脚（有下拉电阻） High : fPWM=fosc /128 高电平 ：fPWM=fosc /128 Low,open : fPWM= fosc /256 低电平或开路：fPWM= fosc /256 FMAX | Set an upper limit of the maximum commutation frequency. (This pin has a pull-up resistor.) 设置最大换相频率上限（有上拉电阻） High, Open : Maximum commutation frequency fMAX=fOsc/(6x28 ) Low : Maximum commutation frequency fMAX=fOsc/(6x29 ) VSP | Duty cycle/mot