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1.产品概述       2.产品特点     OyJ嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）OyJ嘉泰姆

5.产品封装       6.电路原理图  OyJ嘉泰姆

7.相关产品OyJ嘉泰姆

   产品概述 返回TOPOyJ嘉泰姆

       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TOPOyJ嘉泰姆

• 线性控制，单相全波驱动OyJ嘉泰姆

• 宽应用电压1.8V～13.8VOyJ嘉泰姆

• 低导通压降（0.5V @ 250mA）OyJ嘉泰姆

• FG转速检测输出OyJ嘉泰姆

• 锁定检测，自动重启OyJ嘉泰姆

RD低电平正常运转，高电平锁定OyJ嘉泰姆

• 1.5V Hall偏置OyJ嘉泰姆

• 热关断保护OyJ嘉泰姆

• MSOP-10封装OyJ嘉泰姆

• 符合RoHS规范及Pb-FreeOyJ嘉泰姆

Linear Control for Single-Phase Full Wave DriveOyJ嘉泰姆

Wide Input Range 1.8V~13.8VOyJ嘉泰姆

Low Saturation Output Voltage 0.5V @250mAOyJ嘉泰姆

FG Tachometer OutputOyJ嘉泰姆

Lock Detection, Automatic RestartOyJ嘉泰姆

- RD = L when Rotation; RD = H when StopOyJ嘉泰姆

 1.5V Hall BiasOyJ嘉泰姆

Thermal Shutdown ProtectionOyJ嘉泰姆

Available in MSOP-10 PackageOyJ嘉泰姆

RoHS Compliant and 100% Lead (Pb)-FreeOyJ嘉泰姆

   应用范围 返回TOPOyJ嘉泰姆

• CPU散热风扇OyJ嘉泰姆

• 汽车音响散热风扇OyJ嘉泰姆

• 电源散热风扇OyJ嘉泰姆

 CPU Cooling FanOyJ嘉泰姆

 Car Audio CoolerOyJ嘉泰姆

 Power Supply Cooling FanOyJ嘉泰姆

   技术规格书（产品PDF) 返回TOP OyJ嘉泰姆

     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！OyJ嘉泰姆

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产品封装图 返回TOPOyJ嘉泰姆

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电路原理图 返回TOPOyJ嘉泰姆

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◀ Previous:CXMD3268 is a fan motor driver for brushless DC fan motor. It integrates three types speed control modes, low duty startup function, soft switched output, lock protection Hall bias FG output shutdown mode

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Next▶:CXMD3270/C is a fan motor driver for the single coil brushless DC motor. With its high efficient direct PWM control mode, CXMD3270/C controls the speed of brushless DC motor with a built in HALL IC interface