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LMD18245 PDF预览

LMD18245

更新时间: 2024-02-27 04:35:46
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动器
页数 文件大小 规格书
18页 650K
描述
3A, 55V DMOS Full-Bridge Motor Driver

LMD18245 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:ZIP, ZIP15,.2,.17TBReach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:3.16其他特性:CONTAINS DC MOTOR DRIVER
模拟集成电路 - 其他类型:STEPPER MOTOR CONTROLLERJESD-30 代码:R-XZFM-T15
JESD-609代码:e3湿度敏感等级:1
功能数量:1端子数量:15
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:6 A封装主体材料:UNSPECIFIED
封装代码:ZIP封装等效代码:ZIP15,.2,.17TB
封装形状:RECTANGULAR封装形式:FLANGE MOUNT
峰值回流温度(摄氏度):NOT APPLICABLE电源:42 V
认证状态:Not Qualified子类别:Motion Control Electronics
最大供电电流 (Isup):15 mA最大供电电压 (Vsup):55 V
最小供电电压 (Vsup):12 V标称供电电压 (Vsup):42 V
表面贴装:NO技术:BCDMOS
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:THROUGH-HOLE端子节距:1.27 mm
端子位置:ZIG-ZAG处于峰值回流温度下的最长时间:NOT APPLICABLE

LMD18245 数据手册

 浏览型号LMD18245的Datasheet PDF文件第2页浏览型号LMD18245的Datasheet PDF文件第3页浏览型号LMD18245的Datasheet PDF文件第4页浏览型号LMD18245的Datasheet PDF文件第5页浏览型号LMD18245的Datasheet PDF文件第6页浏览型号LMD18245的Datasheet PDF文件第7页 
April 1998  
LMD18245  
3A, 55V DMOS Full-Bridge Motor Driver  
General Description  
Features  
n DMOS power stage rated at 55V and 3A continuous  
n Low RDS(ON) of typically 0.3per power switch  
n Internal clamp diodes  
The LMD18245 full-bridge power amplifier incorporates all  
the circuit blocks required to drive and control current in a  
brushed type DC motor or one phase of a bipolar stepper  
motor. The multi-technology process used to build the device  
combines bipolar and CMOS control and protection circuitry  
with DMOS power switches on the same monolithic struc-  
ture. The LMD18245 controls the motor current via a fixed  
off-time chopper technique.  
n Low-loss current sensing method  
n Digital or analog control of motor current  
n TTL and CMOS compatible inputs  
n Thermal shutdown (outputs off) at TJ 155˚C  
n Overcurrent protection  
=
An all DMOS H-bridge power stage delivers continuous out-  
put currents up to 3A (6A peak) at supply voltages up to 55V.  
The DMOS power switches feature low RDS(ON) for high ef-  
ficiency, and a diode intrinsic to the DMOS body structure  
n No shoot-through currents  
n 15-lead TO-220 molded power package  
eliminates the discrete diodes typically required to clamp bi- Applications  
polar power stages.  
n Full, half and microstep stepper motor drives  
An innovative current sensing method eliminates the power  
loss associated with a sense resistor in series with the motor.  
A four-bit digital-to-analog converter (DAC) provides a digital  
path for controlling the motor current, and, by extension, sim-  
plifies implementation of full, half and microstep stepper mo-  
tor drives. For higher resolution applications, an external  
DAC can be used.  
n Stepper motor and brushed DC motor servo drives  
n Automated factory, medical and office equipment  
Functional Block and Connection Diagram (15-Lead TO-220 Molded Power Package (T) )  
DS011878-1  
Order Number LMD18245T  
See NS Package Number TA15A  
© 1998 National Semiconductor Corporation  
DS011878  
www.national.com  

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