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SI9961CY PDF预览

SI9961CY

更新时间: 2024-09-15 13:13:31
品牌 Logo 应用领域
威世 - VISHAY 驱动器运动控制电子器件信号电路光电二极管电动机控制电机
页数 文件大小 规格书
8页 70K
描述
Motion Control Electronic, BCDMOS, PDSO24,

SI9961CY 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Transferred零件包装代码:SOIC
包装说明:SOP, SOP24,.4针数:24
Reach Compliance Code:unknown风险等级:5.71
JESD-30 代码:R-PDSO-G24JESD-609代码:e0
端子数量:24最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP24,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
电源:5,11.6,12 V认证状态:Not Qualified
子类别:Motion Control Electronics表面贴装:YES
技术:BCDMOS温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
Base Number Matches:1

SI9961CY 数据手册

 浏览型号SI9961CY的Datasheet PDF文件第2页浏览型号SI9961CY的Datasheet PDF文件第3页浏览型号SI9961CY的Datasheet PDF文件第4页浏览型号SI9961CY的Datasheet PDF文件第5页浏览型号SI9961CY的Datasheet PDF文件第6页浏览型号SI9961CY的Datasheet PDF文件第7页 
Si9961  
Vishay Siliconix  
12-V Voice Coil Motor Driver  
FEATURES  
D 1.8-A H-Bridge Output  
D Undervoltage Head Retract  
D Rail-to-Rail Output Swing  
D Class B Linear Operation  
D Programmable Retract Current D Single 12-V Supply  
D Externally Programmable Gain and  
D Low Standby Current  
D System Voltage Monitor with Fault Output  
Bandwidth  
DESCRIPTION  
The Si9961 is a linear actuator (voice coil motor) driver suitable  
for use in disk drive head positioning systems. The Si9961  
contains all of the power and control circuitry necessary to  
drive the VCM that is typically found in 31/2-inch hard disk  
drives and optical disk drives. The driver is capable of  
delivering 1.8 A at a nominal supply of 12 V.  
operation during linear tracking. Externally programmable  
gain switch at the input summing junction increases the  
resolution and dynamic range for a given DAC. The head  
retract circuitry can be activated by either an undervoltage  
condition or an external command. An external resistor is  
required to set the VCM current during retract.  
The Si9961 provides all necessary functions including a motor  
current sense amplifier, a loop compensation amplifier and a  
power amplifier featuring four complementary MOSFETs in a  
H-bridge configuration. The output crossover protection  
ensures no cross-conducting current and true Class B  
The Si9961 is constructed on a self-isolated BiC/DMOS power  
IC process. The IC is available in 24-pin SO package for  
operation over the commercial, C suffix (0 to 70_C)  
temperature range.  
FUNCTIONAL BLOCK DIAGRAM  
EXT  
V+  
8
V
REF  
V
V
REF–  
DD  
7
12  
18  
Q1  
Q3  
4
5
FAULT  
V
R
Voltage  
Monitor  
V
CC  
8 R  
17  
19  
OUTPUT  
A
23  
A2  
+
IA2–  
R
A4  
+
OUTPUT  
B
Q2  
Q4  
V
R
V
9
6
R
RETRACT  
Retract  
Control  
I
RET  
11  
Enable  
OA2  
A5  
22  
+
Acceleration Error  
R
V
R
7 R  
A3  
+
GAIN  
10  
SELECT  
1
2
24  
3
13  
21  
15 14  
16 20  
R
INH  
R
INL  
R
FB  
I
I
I
SA  
GND  
SB  
SENSE  
OUT  
SENSE  
IN+  
SENSE  
IN–  
Document Number: 70014  
S-20883—Rev. G, 24-Jun-02  
www.vishay.com  
1

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