- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄365564 > Si9990ACS (Vishay Intertechnology,Inc.) 5-V VCM Driver/Spindle Motor Driver For 1.8- and 2.5-Hard Disk Drives(用于1.8V和2.5V的硬盤驅(qū)動的5V語音線圈電機(jī)驅(qū)動器/心軸電機(jī)驅(qū)動器) PDF資料下載
參數(shù)資料
| 型號： | Si9990ACS |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | 5-V VCM Driver/Spindle Motor Driver For 1.8- and 2.5-Hard Disk Drives(用于1.8V和2.5V的硬盤驅(qū)動的5V語音線圈電機(jī)驅(qū)動器/心軸電機(jī)驅(qū)動器) |
| 中文描述： | 5V的氯乙烯驅(qū)動器/主軸電機(jī)驅(qū)動器1.8和2.5硬盤驅(qū)動器（用于1.8伏和2.5伏的硬盤驅(qū)動的5V的語音線圈電機(jī)驅(qū)動器/心軸電機(jī)驅(qū)動器） |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 345K |
| 代理商： | SI9990ACS |
Si9990ACS
Vishay Siliconix
S-60752—Rev. C, 05-Apr-99
6
FaxBack 408-970-5600, request 70655
www.siliconix.com
DETAILED DESCRIPTION
Serial Port
A 6-bit word at the serial port DATA pin is used to program
basic operating conditions. The function of each bit is shown
in Tables 1 and 2. To write data to the serial port, CS is pulled
low during CLOCK low. This holds the existing word while
new data is written into the shift registers on a positive
CLOCK edge. The new data becomes valid on the rising
edge of CS. When CS is high, CLOCK is disabled and data
cannot be shifted.
D0 is the last bit written to the serial port. It enters sleep
mode (D0 = 0) upon power up. When D0 is written “0”, a head
retract is automatically initiated and t
DLY
applies following the
next CS rising edge.
The Mode pin is used for production testing only. It should be
tied low during normal operation.
TABLE 1.
Serial Port Definitions
TABLE 2.
Spindle Current Limit
G
ms
= Transconductance (Refer to VCM Design Equations)
FIGURE 1.
Write Cycle Timing Diagram
Bit
Name
Function
0
1
D0
Sleep Mode/System Enable
Sleep Mode: VCM retracted, spindle and
VCM brake applied after period t
DLY
Normal Operation
D1
Spindle Brake
Normal Operation
Spindle Disabled and Brake Applied, VCM
Enabled
D2
Spindle Current Limit
See Table 2.
D3
Spindle Current Limit
See Table 2.
D4
Idle Mode/VCM Enable
Idle: VCM Disabled and Brake Applied,
Spindle Running
Normal Operation
D5
Spindle Step Mode
Normal Operation
Test Pin Becomes Single Step
Commutation Clock
D2
D3
Current Limit
Current Limit
(R
SPIN
= 17 k
)
Current Limit
(R
SPIN
= 15.7 k
)
0
0
1.85 V
G
ms
1.45 V
G
ms
1.05 V
G
ms
0.65 V
G
ms
925 mA
1 A
0
1
725 mA
780 mA
1
0
525 mA
570 mA
1
1
325 mA
350 mA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SI9993CS | 12-V VCM/Spindle Motor Driver for Large Capacity HDD |
| Si9993CS | 12-V VCM/Spindle Motor Driver for Large Capacity HDD(用于大容量硬盤驅(qū)動的12V 語音線圈/心軸電機(jī)驅(qū)動器) |
| SID1003 | 5phi Round Infrared LED |
| SID1003BQ | 5phi Round Infrared LED |
| SID1G307C | 5phi Round Infrared LED |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI9993CS | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:12-V VCM/Spindle Motor Driver for Large Capacity HDD |
| SI-A1125 | 制造商:DIOTEC 制造商全稱:Diotec Semiconductor 功能描述:High Voltage Si-Rectifier Modules Si-Hochspannungs-Gleichrichter Module |
| SI-A1125/500-6 | 制造商:DIOTEC 制造商全稱:Diotec Semiconductor 功能描述:High Voltage Si-Rectifier Modules Si-Hochspannungs-Gleichrichter Module |
| SI-A1125_09 | 制造商:DIOTEC 制造商全稱:Diotec Semiconductor 功能描述:High Voltage Silicon Rectifier Diodes |
| SI-A1125_13 | 制造商:DIOTEC 制造商全稱:Diotec Semiconductor 功能描述:High Voltage Silicon Rectifier Diodes |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。