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InfineonTLE8444SL四路半桥马达驱动方案

2017-11-24 09:39 AM| 发布者: w阿y狸c| 查看: 3283| 评论: 0

摘要: infineon公司的TLE8444SL是四路半桥马达驱动IC,四路半桥功率输出,导通电阻小于1.3欧姆,并行接口控制半桥输出,反相和同相输入以淘汰MC的毗连数量,睡眠模式的功耗很低,不到5uA,3.3V/5V兼容输入,具有短路,超温掩护以及 ...

infineon 公司的TLE 8444SL是四路半桥马达驱动IC,四路半桥功率输出,导通电阻小于1.3欧姆,并行接口控制半桥输出,反相和同相输入以淘汰MC的毗连数量,睡眠模式的功耗很低,不到5uA,3.3V/5V兼容输入,具有短路,超温掩护以及内置诊断特点如过压和欠压锁住,开路检测等, 目标应用在单极或双极负载,步进马达以及DC有刷马达.本京电港论坛文章先容TLE 8444SL主要特点, 方框架图, 短路掩护和开路检测简化电路原理图纸, 误差标识产生电路原理图纸, DC有刷马达负载应用电路以及双极步进马达负载应用电路.

The TLE 8444SL is a protected Quad-Half-Bridge-IC targeted towards automotive and industrial motion control applications. It is a monolithic die based on Infineon’s smart mixed technology SPT which combines bipolar and CMOS control circuitry with DMOS power devices.

DC-Motors can be driven in forward (cw), reverse (ccw), brake and high impedance modes where as Stepper-Motors can be driven in No-Current, negative / positive output current modes. These various modes can easily be achieved via standard parallel interface of the device to a microcontroller.

The PG-SSOP-24-7 package is advantageous as it saves PCB线路板-board space and costs. The integrated short circuit and over-temperature protection as well as it’s built-in diagnosis features such as over- and under voltage-lockout and open load detection improves system reliability and performance.

TLE 8444SL主要特点:

• 4 Half-Bridge Power Outputs (1.3Ù RDS(ON)MAX @ Tj=150°C)

• Minimum Overcurrent Shutdown at 0.9A

• Simple parallel interface control of Half-Bridge Outputs

• Inverted and Non-inverted Inputs to minimize number of microcontroller connections

• Very low current consumption in sleep mode (max. 5μA)

• Error Flag Diagnosis

• Open Load Diagnosis in ON-state for all outputs

• Outputs protected against overcurrent

• Over temperature protection with hysteresis

• Over and Under voltage lockout

• 3.3V / 5V compatible inputs with hysteresis

• No crossover current

• Internal freewheeling diodes

• Thermally enhanced package (fused leads)

• Green Product (RoHS compliant)

• AEC Qualified

TLE 8444SL目标应用:

• Unipolar or Bipolar Loads

• Stepper Motors (e.g. Idle Speed Control)

• DC brush Motors

图1{京电港论坛}.TLE 8444SL方框架图

图2{京电港论坛}.TLE 8444SL在LS开关中的短路掩护和开路检测简化电路原理图纸

图3{京电港论坛}.TLE 8444SL在HS开关中的短路掩护简化电路原理图纸

图4{京电港论坛}.TLE 8444SL误差标识产生概念电路原理图纸

图5{京电港论坛}.DC有刷马达负载应用电路

图6{京电港论坛}.双极步进马达负载应用电路

详情请复制打开此衔接地址:
http://www.infineon.com/dgdl/Final_DS_TLE8444SL_Jul2009_V1.10.pdf?folderId=db3a30431ff98815012060aedcd46179&fileId=db3a30431ff98815012060afb566617a


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