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UC3172AQP PDF预览

UC3172AQP

更新时间： 2024-11-06 20:48:31
品牌 Logo 应用领域
德州仪器 - TI 电动机控制
页数 文件大小 规格书
13页 492K
描述
VOICE COIL MOTOR CONTROLLER, 1A, PQCC28

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中文翻译

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UC3172AQP 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete包装说明：QCCJ, LDCC28,.5SQ
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.89模拟集成电路 - 其他类型：VOICE COIL MOTOR CONTROLLER
JESD-30 代码：S-PQCC-J28长度：11.505 mm
功能数量：1端子数量：28
最高工作温度：70 °C最低工作温度：
最大输出电流：1 A封装主体材料：PLASTIC/EPOXY
封装代码：QCCJ封装等效代码：LDCC28,.5SQ
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：NOT SPECIFIED电源：5/12 V
认证状态：Not Qualified座面最大高度：2.54 mm
子类别：Motion Control Electronics最大供电电压 (Vsup)：15 V
最小供电电压 (Vsup)：4 V标称供电电压 (Vsup)：5 V
表面贴装：YES技术：BIPOLAR
温度等级：COMMERCIAL端子形式：J BEND
端子节距：1.27 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：11.505 mm
Base Number Matches：1

UC3172AQP 数据手册

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UC3172A  
Full Bridge Power Amplifier  
FEATURES  
DESCRIPTION  
•
Plug-in Compatibility with the  
UC3173A  
The UC3172A power amplifier is pin-for-pin compatible with the UC3173A. Im-  
provements have been made to allow more liberal application of the device.  
This full bridge power amplifier, rated for continuous output current of 1A, is in-  
tended for use in demanding servo applications such as head positioning for  
high-density disk drives. This device includes a precision current sense ampli-  
fier that senses load current with a single resistor in series with the load. The  
UC3172A is optimized to consume a minimum of supply current, and is de-  
signed to operate in both 5V and 12V systems. The power output stages have  
a low saturation voltage and are protected with current limiting and thermal  
shutdown. When inhibited the device will draw less than 1.8mA of total supply  
current.  
•
•
•
•
•
•
•
•
5V or 12V Operation  
13mA Quiescent Supply Current  
1.8mA Standby Current  
Precision Current Control  
±
1A Load Current  
1.65V Typical Total VSAT at 1A  
Controlled Velocity Head Parking  
Auxiliary functions on this device include a dual-input undervoltage compara-  
tor, which can monitor two independent supply voltages and activate the built-  
in head park function when either is below minimum. The park circuitry allows  
a programmable retract voltage to be applied to the load for limiting maximum  
head velocity. A separate low-side parking drive pin permits a series imped-  
ance to be inserted to control maximum retract current. The parking drive func-  
tion can be configured to operate with supply voltages as low as 1.2V.  
Range Control for 4:1 Gain  
Change  
•
Compensation Adjust Pin for  
Bandwidth Control  
•
•
Inhibit Input and UVLO  
The closed loop transconductance of the configured power amplifier can be  
switched between a high and low range with a logic input. The 4:1 change in  
gain can be used to extend the dynamic range of the servo loop. Bandwidth  
variations that would otherwise result with the gain change can be controlled  
with a compensation adjust pin.  
PLCC, SOIC, and Low Profile  
Quad Flat Pack Packages  
BLOCK DIAGRAM  
UDG-94039  
Note: Pin numbers refer to QP package.  
9/96  
1234567...13

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