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供应嘉泰姆CXMD3273驱动IC PWM直接输入全波驱动输出模式,高效控制直流无刷马达芯片

面议

参数

嘉泰姆品牌
CXMD3273型号
驱动IC类型

发货地广东深圳 1天内发货供货总量50000000个

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产品详情

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

CXMD3273R/S是一款单相直流无刷马达驱动芯片，其通过PWM直接输入模式高效控制直流无刷马达运转。CXMD3273R/S内置功能包括最小转速设定、停转模式、转速斜率设定、软启动、风扇转速检测、锁定保护、自动重启、过热保护、过电流保护和噪声抑制等功能。噪声抑制模式通过调整SW引脚电阻，优化无刷直流风扇马达的噪声性能，实现马达低噪声、低抖动运转；***转速设定通过预设RMIN引脚电压实现；停转模式占空比通过控制STOP引脚电压进行设定；转速斜率设定通过预设SL引脚电压实现；软启动控制模式能够有效抑制马达启动瞬间的尖峰浪涌电流，还能***低转速运转时马达可靠启动。如果马达被外力或者障碍物卡住，则过驱动电流会引起温度升高而损坏马达，为了防止此类现象，芯片内置锁定保护电路关断内部功率管，切断马达驱动电流。几秒钟后自动重启电路将尝试重新启动。CXMD3273R/S还具有转速回馈输出。CXMD3273R/S is a motor driver for single coil brushless DC motor. With its high efficient direct PWM control mode, CXMD3273R/S can control the speed of brushless DC motor. It integrates minimum speed mode, stop mode, adjustable speed slope control mode, soft start mode, fan tachometer, lock protection, auto restart, TSD, OCP and noise controlled mode. Noise control mode optimizes low noise performance with a SW pin’s resistor according to different requirements, and can drive the BLDC fan motor in low noise and low vibration. Minimum speed mode can set minimum motor speed by presetting RMIN voltage. Stop speed mode can set stop PWM duty by presetting STOP voltage. The adjustable speed slope control mode can set fan speed slope by presetting SL voltage. Soft start suppresses high peak start-up current, which will also provide a reliable start-up even for low rotation speed. If the motor is stalled by external force or obstacles, overdrive current may incur coil overheat. To prevent this, lock protection circuit can shut down the internal power devices for a few seconds after motor lockup. Then auto restart circuit will try to power up these devices. CXMD3273R/S has FG output.

产品特点 返回TOP

•单相全波驱动输出

•外围组件少

•内置过冲吸收电路，无需外接Zener

•软启动和重启，外部可调

•宽工作电压（3V～18V）

•PWM直接输入控速

•***转速外部设定（CXMD3273R）

•噪声抑制外部可调

•停转占空比外部设定（CXMD3273S）

•风扇转速斜率外部设定

•内置过电流保护

•锁定保护与自动重启

•内置霍尔偏置

•FG输出

•TSSOP-16和TSSOP-14（EP）封装

•符合RoHS规范及无铅，无卤

Single-phase Full-wave Driver

Few External Components

Built-in Input Surge Protection, No Zener Diode

Need

External Programmable Soft Start and Soft

Restart Function

Wide Input Range 3.0V~18V

Direct PWM Fan Speed Control

Programmable Minimum Fan Speed

(CXMD3273R only)

Programmable Noise Control by an External

Resistor

Stop Mode PWM Duty Adjustable

(CXMD3273S only)

Fan Speed Slope Control

Built-in Over Current Protection Function

Lock Protection and Auto Restart

Built in Hall Bias

Fan Rotation Speed Feedback FG Output

Available in TSSOP-16 and TSSOP-14 (EP)

Packages

RoHS Compliant and *** Lead (Pb)-Free

Halogen-Free

应用范围 返回TOP

•PC电源、CPU/VGA散热风扇等

Personal Computer’s Power Supply Radiation

and CPU/VGA Cooler

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

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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