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參數(shù)資料
| 型號(hào)： | KA2811C |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 12V Spindle Motor and Voice Coil Motor Driver(心軸電機(jī)和音圈電機(jī)驅(qū)動(dòng)器) |
| 中文描述： | VOICE COIL MOTOR CONTROLLER, 2 A, PQFP48 |
| 封裝： | 14 X 14 MM, HEAT SINK, QFP-48 |
| 文件頁數(shù)： | 14/28頁 |
| 文件大?。?/td> | 313K |
| 代理商： | KA2811C |
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KA2811C
14
Transition time from start-up high frequency to low frequency:
Delay time from the start-up start-up to running modes:
3. BEMF detector
This circuit detects the signals to CE and MTRON to determine BEMF (Back Electromotive force) level required to maintain
self-commutation of the spindle motor. The block is configured of BEMF amplifier and voltage detector circuits.
4. Zero cross detector
This circuit controls the rotating speed of the spindle motor with the output obtained from the comparator which compares the
U phase voltage(among U, V, W phase voltages that are the actual elements of BEMF of the motor) with the neutral voltage of
the motor.
5. RPM selector
The selection mode at the pin no. 24 and the clock at the Pin no. 48 enables to run the motor at specific RPM within the range
of 3600/4500/5400 as follows
6. Speed control circuit
It compares input reference clock with the output phase of zero cross over detector which is proportional to motor speed by
means of PLL (Phase lock loop) circuit.
After that, it provides the data of speed error to the F/V block as pulse.
Pin no. 24 (RPMSEL)
Low (0V)
Pin no. 46 (CLOCK)
4MHz
5MHz
6MHz
5MHz
-
Target RPM
3600
4500
5400
5400
-
Remark
-
-
-
-
Not use
High (5V)
Open
Vpin no. 47 (
1.4V
)
5V
1
e
t
τ
--
–
–
×
=
t
τ
In (3.6/5)
=
Vpin no. 47 (
2.5V
)
5V
1
e
t
τ
--
–
–
×
=
t
τ
In 0.5
–
=
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|---|---|
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| KA2821D | The KA2821D is a monolithic integrated circuit, and suit able as a two-phase stepping motor driver of a 3.5-inch FDD system |
| KA2822BD | 3-Phase BLDC Motor Driver |
| KA2822BDTF | 3-Phase BLDC Motor Driver |
| KA2822D | 3-Phase BLDC Motor Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KA2821D | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:The KA2821D is a monolithic integrated circuit, and suit able as a two-phase stepping motor driver of a 3.5-inch FDD system |
| KA2822BD | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BLDC Motor Driver 3 Phase 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 |
| KA2822BDTF | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 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 |
| KA2822CD | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BLDC Motor Driver 3 Phase 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 |
| KA2822CDTF | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3-Phase BLDC Motor Driver |
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