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A8936CJT

更新时间： 2024-11-20 22:26:51
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器运动控制电子器件信号电路电动机控制电机
页数 文件大小 规格书
10页 104K
描述
VOICE COIL MOTOR DRIVER

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A8936CJT 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：QFP包装说明：TQFP-64
针数：64Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.92Is Samacsys：N
模拟集成电路 - 其他类型：VOICE COIL MOTOR CONTROLLERJESD-30 代码：S-PQFP-G64
JESD-609代码：e0长度：10 mm
功能数量：1端子数量：64
最高工作温度：70 °C最低工作温度：
最大输出电流：0.6 A封装主体材料：PLASTIC/EPOXY
封装代码：LFQFP封装等效代码：QFP64,.47SQ,20
封装形状：SQUARE封装形式：FLATPACK, LOW PROFILE, FINE PITCH
电源：5 V认证状态：Not Qualified
座面最大高度：1.65 mm子类别：Motion Control Electronics
最大供电电流 (Isup)：10 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.5 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：0.5 mm端子位置：QUAD
宽度：10 mmBase Number Matches：1

A8936CJT 数据手册

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INTERIM DATA SHEET  
(Subject to change without notice)  
8936  
March 16, 1993  
VOICE COIL MOTOR DRIVER  
Providing control and drive of the voice coil motor used for head  
positioning in 5 V disk drive applications, the A8936C— is a full-bridge  
driver which can be configured so that its output current is a direct  
function of an externally applied control voltage or current. This linear  
current control function is supplemented by additional circuitry to  
protect the heads and the data disk during system failure or normal  
system shutdown. An under- or over-velocity sense disables the  
system in a controlled sequence if a fault condition occurs.  
A8936CLW  
1
RET REF  
28  
RET SET  
V
2
3
27  
26  
V
FLT  
SENS  
R
S
PROTECT  
CIRCUIT  
Q
VEL FLT  
V
BEMF  
V
4
WINDOW  
COMP.  
25  
24  
GROUND  
SENS FB  
5
6
UV  
SGND  
N
SET  
V
REF  
23  
22  
21  
OUT  
P
R
The two ±500 mA MOS driver outputs provide very low saturation  
voltage and minimal power dissipation. Additional headroom is  
achieved by the sense-FET structure eliminating the need for an  
external current-sense resistor. Thermal protection and under-voltage  
lockout disables the system in a controlled sequence if a fault condi-  
tion occurs.  
OUT P  
V
+
–
REF  
LOAD  
SUPPLY  
7
8
V
OUT  
DD  
EN VEL FLT  
OUT  
N
SGND  
ACT  
9
10  
11  
20  
P
IN  
N
VEL  
IN  
19  
18  
FB  
PWR OFF  
H GAIN  
RETRACT  
FAULT  
12  
13  
17  
16  
PROTECT  
CIRCUIT  
MP  
REFERENCE  
ACT  
RESET  
+
–
SIGNAL  
SUPPLY  
14  
V
15  
CC  
FEATURES  
■ Over-Velocity Fault Function  
Dwg. PP-046A  
■ Lossless Current Sensing  
ABSOLUTE MAXIMUM RATINGS  
■ Zero Deadband  
■ High Transconductance Bandwidth  
■ User-Adjustable Transconductance Gain  
■ Digital Transconductance Gain Switch (4:1 Ratio)  
■ 5 Volt Monitor with Selectable UV Trip Point  
■ Retract Circuitry Functional to 0 Volts  
■ Chip Enable/Sleep Mode Function  
■ 1 V at 500 mA Output Saturation Voltage  
■ Internal Thermal Shutdown Circuitry  
Supply Voltages, VCC and VDD ........... 6.0 V  
Output Current, IOUT (peak) .......... ±600 mA  
(continuous) ........................... ±500 mA  
Analog Input Voltage Range,  
VIN ................................... -0.3 V to VCC  
Logic Input Voltage Range,  
VIN ............................... -0.3 V to +6.0 V  
Package Power Dissipation,  
PD ........................................ See Graph  
Operating Temperature Range,  
TA ..................................... 0°C to +70°C  
Junction Temperature, TJ .............. +150°C†  
Storage Temperature Range,  
TS ................................-55°C to +150°C  
† Fault conditions that produce excessive  
junction temperature will activate device thermal  
shutdown circuitry. These conditions can be  
tolerated, but should be avoided.  
Always order by complete part number:  
Output current rating may be restricted to a value  
determined by system concerns and factors.  
These include: system duty cycle and timing,  
ambient temperature, and use of any heatsinking  
and/or forced cooling. For reliable operation the  
specified maximum junction temperature should  
not be exceeded.  
Part Number Package  
A8936CJT  
A8936CLW  
64-Lead Thin Quad Flatpack  
28-Lead SOIC  
TM  
A
MicroSystems, Inc.  
1234567...10

中文翻译

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