CXMD3269单相无刷直流马达的驱动芯片HALL IC和马达的接口通过BTL线性控制输出对马达驱动有低导通压降低噪声高效率的特点线性控制模式风扇转速输出锁定保护自动重启以及热关断等功能为Hall IC提供偏置

CXMD3269是一款用于单相无刷直流马达的驱动芯片。作为HALL IC和单相直流无刷马达的接口，它通过BTL线性控制输出对马达进行驱动，具有低导通压降、低噪声、高效率的特点。CXMD3269内置线性控制模式、风扇转速输出、锁定保护、自动重启以及热关断等功能，并能为Hall IC提供偏置。当输出电压由低到高或由高到低变化时，线性控制模式会根据转速快慢调整其变化斜率，使马达能应用在对静音和可靠性要求较高的电子设备中。如果马达在运转过程中被卡住，过驱动电流会引起温度升高而损坏马达。为防止此现象，马达卡住时CXMD3269会切断驱动电流，几秒钟后再尝试恢复驱动。风扇转动时RD为低电平，停转时为高电平。FG为转速输出，HB为Hall偏置
• 线性控制，单相全波驱动
• 宽应用电压1.8V～13.8V
• 低导通压降（0.5V @ 250mA）
• FG转速检测输出
• 锁定检测，自动重启
RD低电平正常运转，高电平锁定
• 1.5V Hall偏置
• 热关断保护
• MSOP-10封装

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）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

---

       CXMD3269是一款用于单相无刷直流马达的驱动芯片。作为HALL IC和单相直流无刷马达的接口，它通过BTL线性控制输出对马达进行驱动，具有低导通压降、低噪声、高效率的特点。CXMD3269内置线性控制模式、风扇转速输出、锁定保护、自动重启以及热关断等功能，并能为Hall IC提供偏置。当输出电压由低到高或由高到低变化时，线性控制模式会根据转速快慢调整其变化斜率，使马达能应用在对静音和可靠性要求较高的电子设备中。如果马达在运转过程中被卡住，过驱动电流会引起温度升高而损坏马达。为防止此现象，马达卡住时CXMD3269会切断驱动电流，几秒钟后再尝试恢复驱动。风扇转动时RD为低电平，停转时为高电平。FG为转速输出，HB为Hall偏置。CXMD3269 is a single-phase full wave DC fan motor driver. It is used as an interface between a HALL IC and a single coil brushless motor. With its BTL linear control and low saturation output stages, CXMD3269 silently and efficiently drives a fan motor. The functions built in CXMD3269 are linear control drive mode, fan tachometer, lock detection, automatic restart, Hall Bias and thermal shutdown. When output voltage changes from L to H (or H to L), linear control mode gently drives the output stage. This makes CXMD3269suitable for the electronics equipment which required low noise and high reliability. If the motor is stalled by the external force, overdrive current may incur coil overheat or burning. To prevent this, the lock detection circuit shuts off the driver. The automatic restart circuit resumes powering up the driver after a few seconds. Rotation detection open drain output is pulled down when a motor runs. FG is the Fan tachometer output, and HB provides bias supply for a Hall sensor.

   产品特点 返回TOP

---

• 线性控制，单相全波驱动

• 宽应用电压1.8V～13.8V

• 低导通压降（0.5V @ 250mA）

• FG转速检测输出

• 锁定检测，自动重启

RD低电平正常运转，高电平锁定

• 1.5V Hall偏置

• 热关断保护

• MSOP-10封装

• 符合RoHS规范及Pb-Free

Linear Control for Single-Phase Full Wave Drive

Wide Input Range 1.8V~13.8V

Low Saturation Output Voltage 0.5V @250mA

FG Tachometer Output

Lock Detection, Automatic Restart

- RD = L when Rotation; RD = H when Stop

 1.5V Hall Bias

Thermal Shutdown Protection

Available in MSOP-10 Package

RoHS Compliant and 100% Lead (Pb)-Free

   应用范围 返回TOP

---

• CPU散热风扇

• 汽车音响散热风扇

• 电源散热风扇

 CPU Cooling Fan

 Car Audio Cooler

 Power Supply Cooling Fan

   技术规格书（产品PDF) 返回TOP 

---

     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！

 

产品封装图 返回TOP

---

电路原理图 返回TOP

---

a

相关芯片选择指南 返回TOP            更多同类产品......

---

马达驱动 > 直流散热风扇
Part   Number	remark	Supply Voltage (V)	Output Current  (mA)	Control Topology	Output Saturation Voltage	Lock Time Ratio	Package
CXMD3265	3-Phase Sensorless BLDC Fan Motor Driver	1.8 ~ 6	900	PWM	Upper and Lower 0.45 (@500mA)	01:02	UDFN-10
CXMD3266	PWM Fan Motor Driver with Slope Control and Low Duty Startup	1.8~6	1000	PWM	Upper and Lower 0.14 (@250mA)	01:10	UDFN-10
CXMD3267	PWM Fan Motor Driver with Slope Control	1.8 ~ 6	1000	PWM	Upper and Lower 0.14 (@250mA)	01:10	UDFN-10,MSOP-10
CXMD3268	PWM Fan Motor Driver with Slope Control and Low Duty Startup	1.8~6	1000	PWM	Upper and Lower 0.28 (@250mA)	01:10	UDFN-10
CXMD3269	800mA BTL Linear Fan Motor Driver	1.8~13.8	800	Linear	Upper and Lower 0.5(@250mA)	01:10	MSOP-10
CXMD3270	18V PWM Fan Motor Driver	3 ~ 16	1000	PWM	PWM Upper and Lower 0.79 (@500mA)	01:10	TSSOP-16,TDFN-14
CXMD3271	24V PWM Fan Motor Driver	3 ~ 28	1000	PWM	Upper and Lower 0.79 (@500mA)	01:10	TSSOP-16,TDFN-14
CXMD3272	PWM Pre Drive for DC Fan Motor	5.5 ~ 16	Pre-drive	PWM	---	01:10	TSSOP-16
CXMD3273	Single-Phase Full-Wave Motor Driver with Direct PWM Input	3~18	1350	PWM	Upper and Lower 0.20 (@200mA)   Upper and Lower 0.50 (@500mA)	01:10	TSSOP-14(EP), TSSOP-16