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參數(shù)資料
| 型號(hào)： | Si9961 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | 12-V Voice Coil Motor Driver(用于光盤驅(qū)動(dòng)頭定位系統(tǒng)的12V語音線圈電機(jī)驅(qū)動(dòng)器) |
| 中文描述： | 12 V的音圈電機(jī)驅(qū)動(dòng)器（用于光盤驅(qū)動(dòng)頭定位系統(tǒng)的12V的語音線圈電機(jī)驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 258K |
| 代理商： | SI9961 |
Si9961
Vishay Siliconix
FaxBack 408-970-5600, request 70014
www.siliconix.com
S-60752—Rev. F, 05-Apr-99
5
APPLICATIONS
Introduction
The Si9961 Voice Coil Motor (VCM) driver integrates the
active feedback and drive components of a head-positioning
servo loop for high-performance hard-disk applications. The
Si9961 operates from a 12-V (±10%) power supply and
delivers 1 A of steady-state output current. This device is
made possible by a power IC process which combines bipolar,
CMOS and complimentary DMOS technologies. CMOS logic
and linear components minimize power consumption, bipolar
front-ends on critical amplifiers provide necessary accuracy,
and complimentary (p- and n-channel) DMOS devices allow
the transconductance output amplifier to operate from ground
to V
DD
. Two user-programmable, current feedback/input
voltage ratios may be digitally selected to optimize gain for
both seek and track following modes, to maximize system
accuracy for a given DAC resolution. An undervoltage lockout
circuit monitors the V+ supply and generates a fault signal to
trigger an orderly head-retract sequence at a voltage level
sufficient to allow the spindle motor’s back EMF-generated
voltage to supply the necessary head parking energy. Head
retract can also be commanded via a separate RETRACT
input. VCM current during retract can be user programmed
with a single external resistor. External components are
limited to R/C filter components for loop compensation and
the resistors that are required to program gain, retract current,
and the load current sense.
FIGURE 1.
Si9961 Typical Application
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| Si9979 | 3-Phase Brushless DC Motor Controller(3相位無電刷直流電機(jī)驅(qū)動(dòng)器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI9961A | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:12-V Voice Coil Motor Driver |
| SI9961ACY | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Voice Coil Driver 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 |
| SI9961ACY-E3 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Voice Coil Driver 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 |
| SI9961ACY-T1 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Voice Coil Driver 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 |
| SI9961ACY-T1-E3 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Voice Coil Driver 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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