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SA12CR

更新时间： 2024-11-04 19:47:51
品牌 Logo 应用领域
凌云 - CIRRUS 局域网电动机控制
页数 文件大小 规格书
5页 550K
描述
Brush DC Motor Controller, 20A, ROHS COMPLIANT, POWER, HERMETIC SEALED, MO-127, DIP-12

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SA12CR 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：DFM包装说明：,
针数：12Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.23其他特性：ALSO REQUIRES 16V TO 200V SUPPLY
模拟集成电路 - 其他类型：BRUSH DC MOTOR CONTROLLERJESD-30 代码：R-XDFM-P12
功能数量：1端子数量：12
最高工作温度：125 °C最低工作温度：-55 °C
最大输出电流：20 A封装主体材料：UNSPECIFIED
封装形状：RECTANGULAR封装形式：FLANGE MOUNT
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
最大供电电压 (Vsup)：16 V最小供电电压 (Vsup)：14 V
标称供电电压 (Vsup)：15 V表面贴装：NO
温度等级：MILITARY端子形式：PIN/PEG
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

SA12CR 数据手册

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SA12  
Pulse Width Modulation Amplifiers  
FEATURE  
• HIGH FREQUENCY SWITCHING — 200 kHz  
• WIDE SUPPLY RANGE—16-200V  
• 15A CONTINUOUS TO 65°C CASE  
• 3 PROTECTION CIRCUITS  
• ANALOG OR DIGITAL INPUTS  
• SYNCHRONIZED OR EXTERNAL OSCILLATOR  
• FLEXIBLE FREQUENCY CONTROL  
APPLICATIONS  
• REACTIVE LOADS  
12-PIN POWER DIP  
PACKAGE STYLE CR  
• LOW FREQUENCY SONAR  
• LARGE PIEZO ELEMENTS  
• OFF-LINE DRIVERS  
EXTERNAL CONNECTIONS  
• C-D WELD CONTROLLER  
ISENSE A  
DESCRIPTION  
1
2
3
4
5
6
12  
The SA12 is a pulse width modulation amplifier that can  
supply 3000W to the load. An internal 400kHz oscillator re-  
quires no external components.The clock input stage divides  
the oscillator frequency by two, which provides the 200 kHz  
switching frequency. External oscillators may also be used to  
lowertheswitchingfrequencyortosynchronizemultipleampli-  
fiers. Current sensing is provided for each half of the H-bridge  
giving amplitude and direction data. A shutdown input turns  
off all four drivers of the H-bridge output. A high side current  
limit and the programmable low side current limit protect the  
amplifier from shorts to supply or ground in addition to load  
shorts. The H-bridge output MOSFETs are protected from  
thermal overloads by directly sensing the temperature of the  
die. The 12-pin hermetic MO-127 power package occupies  
only 3 square inches of board space.  
CLK IN  
A OUT  
11  
CLK OUT  
+PWM  
*
VCC  
10  
9
TOP  
VIEW  
*
+VS  
-PWM/RAMP  
8
GND  
7
B OUT  
ILIM/SHDN  
I SENSE B  
Case tied to pin 5. Allow no current in case. Bypassing of supplies  
is required. Package is Apex MO-127 (STD). See Outline  
Dimensions/Packages in Apex data book.  
*See text. As +PWM goes more positive, A OUT duty cycle  
increases.  
BLOCK DIAGRAM AND TYPICAL APPLICATION  
TORQUE MOTOR DRIVER  
Vcc  
10  
+V  
CURRENT  
LIMIT  
9
S
+PWM  
3
4
PWM  
–PWM/RAMP  
CLK OUT  
100pF  
28K  
B OUT  
A OUT  
OUTPUT  
DRIVERS  
8
MOTOR  
11  
OSC  
÷2  
2
1K  
I SENSE A  
ILIM/SHDN  
12  
6
SHUTDOWN  
CONTROL  
5K  
RSENSE  
1K  
CLK IN  
GND  
1
5
.01μF  
CONTROL  
SIGNAL  
I SENSE B  
7
RSENSE  
5V  
5V  
Copyright © Cirrus Logic, Inc. 2012  
(All Rights Reserved)  
MAR 2012  
APEX − SA12UREVJ  
www.cirrus.com  
12345

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