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參數(shù)資料
| 型號： | TB6582FG |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.002 A, PQFP52 |
| 封裝： | 10 X 10 MM, 0.65 MM PITCH, ROHS COMPLIANT, PLASTIC, QFP-52 |
| 文件頁數(shù)： | 13/28頁 |
| 文件大小： | 279K |
| 代理商： | TB6582FG |
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TB6582FG
2007-10-18
Design Specifications
20
17. Overcurrent Protection
Two input signals can be used for current limiting.
(1)
Iduty
The voltage specified by the Iduty pin and the voltage converted from a phase current is compared.
When the former voltage is lower than the latter one, the duty cycle for the drive outputs is limited by
limiting the modulated waveform. During an actual operation, the full-wave rectification of the
three-phase current is performed with reference to the internal reference voltage of 2.5 V. Then, this
full-wave-rectified waveform and the voltage specified by the Iduty are compared. Therefore, applying
an input voltage of 2.5 V or lower to the Iduty pin limits the current so that the motor is not rotated.
The Iduty input voltage range is from 2.5 V to 4.0 V. When the Iduty input is not used for the
protection feature, the Iduty voltage must be set to Vrefout.
Example)
imiting the IOUT current to 1 A when the shunt resistor value R1 is 0.33 .
VP = IOUT (A) × R1 () × G + 2.5 (V)
G: 3 (Value of the internal amplification)
VP = 1.0 × 0.33 × 3 + 2.5 V = 0.99 + 2.5 = 3.49 V
Thus, setting the Iduty pin voltage to 3.49 V limits the phase current peak to about 1 A. The
setting error can be considered to be
± 20%.
(Internal operation image)
Iduty pin
Internal reference voltage
Three-phase full-wave-rectified waveform (Inside the chip)
3.49 V
2.5 V
VP
2.5 V
GND
One-phase current
Preliminary
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TB6582FG(ES) | 制造商:Toshiba America Electronic Components 功能描述: |
| TB6582FG(O,EL) | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Brushless DC Motor Controller RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TB6582FG(OEL) | 制造商:Toshiba America Electronic Components 功能描述:BRUSHLESS DC MOTOR DRIVER 18V 0.2MA |
| TB6584AFNG(O,C8,EL | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Brushless Motor DRVR 3-Phase 1A 45V RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TB6584AFNG(O,EL) | 功能描述:馬達/運動/點火控制器和驅(qū)動器 3-Phase Brushless Driver IC 45V 1.8A RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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