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参数资料
| 型号： | AH5795-FDC-7 |
| 厂商： | Diodes Inc |
| 文件页数： | 7/13页 |
| 文件大小： | 0K |
| 描述： | IC FAN MTR DRVR BLDC DFN2020C-6 |
| 标准包装： | 1 |
| 应用： | 风扇电机驱动器，无刷（BLDC） |
| 输出数： | 1 |
| 电流 - 输出： | 500mA |
| 电压 - 负载： | 1.8 V ~ 6 V |
| 电源电压： | 1.8 V ~ 6 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-UDFN 裸露焊盘 |
| 供应商设备封装： | 6-DFN2020C（2x2） |
| 包装： | 标准包装 |
| 其它名称： | AH5795-FDC-7DIDKR |
AH5795
SINGLE PHASE HALL EFFECT LATCH SMART
FAN MOTOR CONTROLLER
Application Note
DC Supply voltage speed control
Motor speed can be controlled by varying the Vdd supply voltage while PWM pin is tied to Vdd pin.
For example, with 5V nominal motor, changing supply voltage between 5V to 1.8V, speed can be reduced from 100% to 36%
typically.
PWM speed control
Motor speed can also be adjusted by applying a PWM speed control signal into the PWM pin while keeping the Vdd pin at
nominal motor voltage. The motor speed is proportional to the PWM signal duty. For example, with 5V nominal motor, Vdd
pin is maintained at 5V typical while varying the PWM control signal duty to adjust the motor speed linearly. Figure below
shows the output O1 and O2 in relation to PWM speed control signal at PWM pin.
Frequency of PWM speed control signal can be between 15Hz to 50kHz. Recommended typical PWM signal frequency is
25kHz to keep switching frequency away from audible band. If PWM signal level at PWM pin stays low for longer than 65ms
typical, the outputs are disabled.
Depending on the motor design and its inertia, minimum start-up PWM duty required can be typically between 30% - 40%
while minimum running PWM duty can be down to 20%-25% typical. If voltage at Vdd is lower than the nominal motor
voltage, both start-up PWM duty and minimum running PWM duty required will be higher.
AH5795
Document number: DS35277 Rev. 1 - 2
7 of 13
August 2011
? Diodes Incorporated
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| AH5795-WU-7 | 功能描述:马达/运动/点火控制器和驱动器 Hall Driver,TSOT26,T Driver,TSOT26,3K RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| AH5798 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER |
| AH5798_1002 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER |
| AH5798_1006 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:SINGLE PHASE HALL EFFECT LATCH SMART |
| AH5798-WTG-7 | 功能描述:板机接口霍耳效应/磁性传感器 SINGLE PHASE 6V 5mA RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23 |
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