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SI9961ACY-E3 PDF预览

SI9961ACY-E3

更新时间: 2024-09-15 19:49:19
品牌 Logo 应用领域
威世 - VISHAY 光电二极管
页数 文件大小 规格书
11页 156K
描述
Motion Control Electronic, BCDMOS, PDSO24

SI9961ACY-E3 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:SOP, SOP24,.4Reach Compliance Code:unknown
风险等级:5.72JESD-30 代码:R-PDSO-G24
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最大供电电流 (Isup):13 mA
表面贴装:YES技术:BCDMOS
温度等级:COMMERCIAL端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
Base Number Matches:1

SI9961ACY-E3 数据手册

 浏览型号SI9961ACY-E3的Datasheet PDF文件第2页浏览型号SI9961ACY-E3的Datasheet PDF文件第3页浏览型号SI9961ACY-E3的Datasheet PDF文件第4页浏览型号SI9961ACY-E3的Datasheet PDF文件第5页浏览型号SI9961ACY-E3的Datasheet PDF文件第6页浏览型号SI9961ACY-E3的Datasheet PDF文件第7页 
Si9961A  
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 Si9961A is a linear actuator (voice coil motor) driver  
suitable for use in disk drive head positioning systems. The  
Si9961A 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.  
B 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 Si9961A provides all necessary functions including a  
motor current sense amplifier, a loop compensation amplifier  
The Si9961A is constructed on a self-isolated BiC/DMOS  
power IC process. The IC is available in both standard and  
lead (Pb)-free, 24-pin SO packages for operation over the  
commercial, C suffix (0 to 70_C) temperature range.  
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  
FUNCTIONAL BLOCK DIAGRAM  
EXT  
REF  
V+  
8
V
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  
SELECT  
10  
+
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-40845—Rev. H, 03-May-04  
www.vishay.com  
1

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