CXMD3207是一款无传感器三相无刷直流电机驱动芯片。它感应电机旋转时的反电动势，并向电机提供相应的换向电流。无传感器技术的使用意味着不需要霍尔传感器，使得电机制造变得容易，特别是对于小型和薄直流电机，因为集成电路被放置在电机组件之外。
CXMD3207系列集成电路具有变速控制、转速表信号输出、旋转方向控制和关机模式等功能，这些功能使包括CXMD3207集成电路在内的电机的控制和检测从您的系统中变得非常容易
˙PWM（脉冲宽度调制）电机变速控制
˙内置转速计信号输出（FG），用于检测电机速度
˙“软开关”技术，减少振动和噪音
˙热停堆保护
˙转子锁定关闭驱动器保护和自动重启功能
旋转方向控制（仅限CXMD3207Ug）
˙低待机电流关机模式（仅限CXMD3207Ug）
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[ CXMD3207 ]
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）
一.产品概述
CXMD3207 is a sensorless 3-phase brushless DC motor driver IC. It senses the BEMF (Back electromotive force) of the motor in rotation and provides corresponding commutation current to the motor. The use of sensorless technology means no hall sensors are needed and makes the motor fabrication easy and especially for the small and thin DC motors since the IC is placed outside of the motor assembly.
CXMD3207 series ICs have the functions of variable speed control, tachometer signal output, rotation direction control and shutdown mode, the motor including CXMD3207 IC can be controlled and detected by these features very easy from your system
二.产品特点
˙PWM (pulse width modulation) motor variable speed control
˙Built-in tachometer signal output (FG) for detection of motor speed
˙”Soft-switching” technique to reduce vibration and acoustic noise
˙Thermal shutdown protection
˙Rotor lock shutdown drivers protection and auto-restart function
˙Direction of rotation control (CXMD3207Ug only)
˙Shutdown mode with low standby current (CXMD3207Ug only)
˙Package: MSOP8 (CXMD3207KT) / MSOP10 (EP) (CXMD3207Ug)
三.应用范围
DC BRUSHLESS MOTOR DRIVER
四.技术规格书（产品PDF)
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
五.产品封装图
六.电路原理图
七.相关芯片选择指南
| 5v便携式直流无刷电机驱动 5V PORTABLE DC FAN App. | ||||||||
| Part No. | VIN | IOUT | Coil Type | Operating | Magnetic | Package | Status | |
| (Min) | (Max) | Temperature | Characteristcs | |||||
| (V) | (mA) | (℃) | (G) | |||||
| CXMD3201 | 1.8 | 5.5 | 500 | Full Wave | -20 to 105 | ±25 | T825/TS825 | MP |
| CXMD3202 | 1.8 | 5.5 | 500 | Full Wave | -20 to 105 | ±25 | T825/TS825 | MP |
| CXMD3203 | 1.8 | 5.5 | 500 | Full Wave | -20 to 105 | ±25 | T826/TS826 | MP |
| CXMD3204 | 1.8 | 5.5 | 500 | Full Wave | -20 to 105 | ±25 | T826/TS826 | MP |
| CXMD3205 | 1.8 | 5.5 | 500 | Full Wave | -20 to 105 | ±15 | TS826 | MP |
| CXMD3206 | 1.8 | 5.5 | 500 | Full Wave | -20 to 105 | ±15 | TS826 | MP |
| CXMD3207 | 2.2 | 5.5 | 400 | 3-Phase sensorless | -20 to 85 | NA | MSOP8 MSOP10 | Q4 |
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