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參數(shù)資料
| 型號： | Si9979 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | 3-Phase Brushless DC Motor Controller(3相位無電刷直流電機驅(qū)動器) |
| 中文描述： | 三相無刷直流電動機控制器（3相位無電刷直流電機驅(qū)動器） |
| 文件頁數(shù)： | 4/7頁 |
| 文件大小： | 280K |
| 代理商： | SI9979 |
Si9979
Vishay Siliconix
S-60752-Rev. D, 05-Apr-99
4
FaxBack 408-970-5600, request 70012
www.siliconix.com
PIN CONFIGURATION
PIN DESCRIPTION
Pins 1-3: IN
A
, IN
B
, IN
C
IN
A
, IN
B
, and IN
C
are the commutation sensor inputs, and are
intended to be driven by open collector Hall effect switches.
These inputs have internal pull up resistors tied to V
DD
, which
eliminates the need for external pull up resistors.
Pin 4: 60/120
The 60/120 input allows the use of the Si9979 with either a 60
°
or 120
°
commutation sensor spacing. An internal pull up
resistor, which is tied to V
DD
,
sets the default condition to 60
°
spacing. 120
°
spacing is selected by pulling this input to
ground.
Pin 5: EN (Enable)
A logic “1” on this input allows commutation of the motor. This
is the default condition as this pin is pulled up internally. When
this pin is pulled to ground, all gate drive outputs are turned off.
Pin 6: F/R (Forward/Reverse)
A logic “1” on this input selects commutation for motor rotation
in the “forward” direction. This is the default condition as this
pin is pulled up internally. When this pin is pulled to ground, the
commutation sensor logic levels are inverted internally,
causing reverse rotation.
Pin 7: QS (Quadrature Select)
This input determines whether the bottom MOSFETs or both
bottom and top MOSFETs switch in response to the PWM
signal. A logic “1” on this input enables only the bottom
MOSFETs. This is the default condition as this pin is pulled up
internally. When this pin is pulled to ground, both the bottom
and top MOSFETs are enabled.
Pin 8: PWM
An open collector (drain) or TTL compatible signal is applied to
this input to control the motor speed. The QS input determines
which MOSFETs are switched in response to the PWM signal.
If no PWM signal is being used, this input is left open. It is
pulled up internally, which allows the MOSFETs to follow the
commutation sequence.
Pin 9: BRK
With this input at logic “1”, the top MOSFETs are turned off and
the bottom MOSFETs are turned on, shorting the motor
windings together. This provides a braking torque which is
dependent on the motor speed. This is the default condition as
this pin is pulled up internally. When this pin is pulled to
ground, the MOSFETs are allowed to follow the commutation
sequence.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI9979_04 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:3-Phase Brushless DC Motor Controller |
| SI9979CS | 功能描述:馬達/運動/點火控制器和驅(qū)動器 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| SI9979CS-E3 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| SI9979DB | 功能描述:馬達/運動/點火控制器和驅(qū)動器 SI9979 Demo Board 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| SI9979DS | 功能描述:馬達/運動/點火控制器和驅(qū)動器 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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