【应用】禾润直流有刷电机驱动器HTD8236用于扫地机，5.5V~36V电压供电，驱动电流高达4A

时间： 2023-03-16 来源：世强

技术问答

随着快节奏生活的到来，越来越多的人没有太多的时间去打扫家里，而扫地机可以很好的解决这个问题，代替人力去清洁地面，因为其省时省力的特点得到了越来越多人的青睐。在设计扫地机器人的电机动作线路时需要直流有刷电机驱动来驱动扫地机的电机。本文推荐采用禾润推出的HTD8236用于扫地机，驱动电流高达4A。

HTD8236是一款直流有刷电机驱动器，能够以高达6A的峰值电流双向控制电机；利用电流衰减模式，可通过对输入信号进行脉宽调制（PWM）来控制电机转速，同时具备低功耗休眠模式。

禾润HTD8236用于扫地机框图：

HTD8236提供一个故障检测输出管脚。HTD8236提供一种带有裸露焊盘的ESOP8封装，能有效改善散热性能，且是无铅产品，符合环保标准。

HTD8236特点

●单通道H桥电机驱动器

●宽电压供电，5.5V~36V

●低RDS（ON）电阻，200mΩ（HS+LS）

●6A峰值驱动输出，4A连续驱动输出

●PWM控制接口

●支持低功耗休眠模式

综上所述，禾润推出的HTD8236直流有刷电机驱动器非常适合用于扫地机。

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随着技术不断的革新，扫地机器人从傻瓜式随机式到现在的规划式，技术不断的革新，功能也越来越强大，有扫地的，也有拖洗一体的。而在扫地机中主轮运用的一般是有刷直流电机，本文将介绍可以用在扫地机主轮，驱动主轮有刷直流电机的拓尔微电子电机驱动芯片TMI8870。

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应用方案发布时间 : 2021-12-18

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扫地机能帮助人们从家务劳动中解脱出来，很多家庭对扫地机并不要求太多功能，只要能把地扫干净，尽量低成本就可以。在一些低成本的扫地机里面的电机直接采用的有刷直流电机，驱动用TI的DRV8870。今天介绍国产拓尔微的TMI8870管脚完全兼容TI的DRV8870，既解决了Ti的DRV8870的缺货问题，也解决了进一步降本的需求。

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HR4985	步进电机驱动芯片	STEP/DIR	2	3.0~5.5V	8.0~32V	1~1/8	1.0A	QFN24

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