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参数资料
| 型号： | TB6608FNG |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 0.8 A, PDSO20 |
| 封装： | 0.225 INCH, 0.65 MM PITCH, PLASTIC, SSOP-20 |
| 文件页数： | 6/30页 |
| 文件大小： | 356K |
| 代理商： | TB6608FNG |
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TB6608FNG
2007-12-17
14
Chopper Control
Turning on the power (chop on) causes a current to flow into the coils. Once the VRF voltage reaches Vref, it is
detected by the comparator and the power is turned off (chop off).
The off timer/counter counts the number of falling edges of the internal CK signal, which is derived from the OSC
signal, and generates the motor-driving PWM signal based on the turn-off time of four CK cycles.
The upper limit of the current across the motor coil (i.e., the peak current in each excitation mode), I (Limit), can
be calculated as follows:
I (Limit)
= Vref/RNF
Vref equals to 0.125 V when TQ is Low, while it equals to 0.5 V when TQ is High.
RNF is the value of resistors used for output current detection. One of those resistors is connected between RFA
and GND, and the other is connected between RFB and GND.
Timing chart may be simplified for the sake of brevity.
Internal CK
OSC
Off timer counter
Upper limit:
Vref/RNF
Coil current
chop on
off
on
off
on
off
on
Generate PWM
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TB6608FNG(C8,EL,HJ | 制造商:Toshiba 功能描述:Cut Tape 制造商:Toshiba America Electronic Components 功能描述:2ph stepping motor driver 制造商:Toshiba 功能描述:Stepper Motor Driver 3.3V T/R |
| TB6608FNG(C8OEL,HZ | 功能描述:马达/运动/点火控制器和驱动器 2-phase stepping motor Drvr 15V RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TB6608FNG(O,EL) | 功能描述:马达/运动/点火控制器和驱动器 Stepping Motor Driver RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TB6612FNG(O,C,8,EL | 功能描述:马达/运动/点火控制器和驱动器 15V Bridge Drvr for brushed DC motors RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TB6612FNG(O,EL) | 功能描述:马达/运动/点火控制器和驱动器 Bridge Driver RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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