CXMD3251直流风扇电机的单相全波电机驱动器速度由PWM输入信号控制输出信号是放大的霍尔输入信号设备将进入锁定保护模式热关机功能FG输出

CXMD3251是一款用于直流风扇电机的单相全波电机驱动器，速度由PWM输入信号控制。这个集成电路的输出信号是放大的霍尔输入信号。它适用于游戏机和需要静默驱动程序的CPU冷却器。该设备内置锁保护。当风扇锁定时，设备将进入锁定保护模式。还具有热关机功能。正常运行时，电源电流小于5mA，但在PWM=0待机模式下，电源电流仅为150mA左右。此外，此功能将关闭放大器和功能梯度。
·单相全波风扇驱动器
·无声司机
·低供电电流
·低待机电流（锁定模式TOFF或脉宽调制=0占空比），电源电流小于220毫安
·由PWM输入信号控制的速度
·内置快速启动功能
·锁定保护和自动重启功能
·内置FG输出
·内置热保护电路
·提供无铅和绿色设备（符合RoHS）

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

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The CXMD3251 is a single phase full wave motor driver for DC fan motor, and speed controlled by PWM input signal. The output signal of this IC is the amplified hall input signal. It is suitable for both game machine and CPU cooler that need silent drivers. The device is built-in lock protection. When fan is locked, the device will enter the lockup protection mode. It is also with thermal shutdown function. In normal operation, supply current is less than 5mA, but in PWM=0 standby mode, it is just around 150mA. Moreover, this feature will shutdown Amplifier and FG. The CXMD3251 is available in MSOP-8 package.

   产品特点 返回TOP

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· Single Phase Full Wave Fan Driver 

· Silent Driver 

· Low Supply Current 

· Low Standby Current (Lock mode TOFF or PWM=0 duty), Supply current less than 220mA 

· Speed Controllable by PWM Input Signal 

· Built-in Quick Start Function 

· Lock Protection and Auto Restart Function 

· Built-in FG Output 

· Built-in Thermal Protection Circuit 

· Lead Free and Green Devices Available (RoHS Compliant)

   应用范围 返回TOP

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· Motor Drivers For Silent Fan Motors

   技术规格书（产品PDF) 返回TOP 

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     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

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电路原理图 返回TOP

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Fan Motor Driver > Notebook PC Application

Part_No

Main  App.  Fields

Package

Supply  Voltage  (V)

Output Current (max)(mA)

Phase

FG

RD

Lock& Restart Time

Speed Control

HB Output

Status

min

max

CXMD3250

NB Motor

MSOP10

2

5.5

1000

1

Yes

No

CT

Direct   PWM

Yes

Now

CXMD3251

NB Motor

MSOP8

2.3

5.5

1000

1

Yes

No

Internal

Direct  PWM

No

Now

CXMD3252

NB Motor

MSOP8

2

5.5

1000

1

Yes

No

Internal

-

Yes

Now

CXMD3253

NB Motor

MSOP10

2.2

5.5

1000

1

Yes

No

Internal

-

No

Now

Fan Motor Driver > Desktop PC Application

Part_No

Main  App.  Fields

Pack.

Supply Voltage (V)

Output Current (max)(mA)

Phase

FG

RD

Lock& Restart Time

Speed Control

Regul ator

HB Output

Status

min

max

CXMD3254/A

NB Motor

SSOP16

4.5

15

1000

1

Yes

Yes

CT

PWM

No

Yes

Now