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|• BLDC Motor Flash MCU( ❋ Items in this solution Δ Other related products )|
|Part Number||VDD||IO / ADC||Interface||TIMER||ROM/RAM/EEP||CLOCK||OCP/Comp.||PACKAGE|
|HT66FM5230||4.5 ~ 5.5V||18 / 10bitx6||I²C||4||2K / 256 / 32||20MHz HIRC||1 / 3||16NSOP/20SSOP|
|❋||HT66FM5240||4.5 ~ 5.5V||26 / 12bitx8||I²C / UART||5||4K / 256 / 64||20MHz HIRC||1 / 3||20/28SSOP|
|HT45FM30||3.3 ~ 5.5V||18 / 10bitx5||-||3||2K / 192 / 64||16MHz HIRC||- / 4||16/20TSSOP|
|HT45FM2C||3.3 ~ 5.5V||28 / 10bitx9||-||8||4K / 256 / 128||20MHz HIRC||- / 2||16NSOP/28SOP/ |
|HT45FM03B||4.5 ~ 5.5V||26 / 12bitx8||-||2||4K / 192 / -||12/16/20 HIRC||- / 1||28SOP|
|• Tiny Power |
|Part Number||Maximum Input Voltage||Output Voltage||Output Current||Tolerance||Current Consumption||Protections||Package|
|• Integrated Power MOSFET Buck Type AC to DC LED Lighting ( ❋ Items in this solution Δ Other related products )|
|Part Number||Topology||Power MOSFET||RDS(on)||Output Power||Frequency||OTHERS||Operating Current||PACKAGE|
|HT7A6312||Flyback||730V||19Ω||8W/13W||60KHz||UVLO, OTP, OVP, OCP, open/Short||0.7mA||8SOP|
|HT7A6322||Flyback||730V||12Ω||12W/20W||60KHz||UVLO, OTP, OVP, OCP, open/Short||0.7mA||8SOP|
Compared with traditional fan products, DC energy saving fans use brushless motor control technology, which provides the advantages of longer product life, controllable air speed and improved power savings, greatly enhancing the value and competitiveness of such products.
One of Holtek’s DC Brushless Motor Control Flash MCUs, the HT66FM5240, is specifically directed at single-phase and three-phase Brushless DC Motor control applications. This device fully supports square wave and sinusoidal wave generation solutions. Among these, square wave control can support Hall Sensor and Sensor-less control methodologies. As Brushless DC Motor control operation requires the processing of feedback signals for protection against over current and over voltage situations, this Holtek device includes integrated protection circuits along with an A/D converter, which are used together to ensure smooth rotational control as well as implementing the necessary protection features.
To help users develop related products rapidly, Holtek has provided a block diagram, application circuits, PCB layout, component list and other technical information. For more details, click on “Learn more about our solutions”.
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System Architecture and Connection Diagram
This application solution provides a highly integrated DC Brushless Motor Fan reference design using a minimum of external components. The solution includes power circuit, Intelligent Power Module (IPM) circuit, voltage regulator circuit, Hall Sensor current detect circuit, etc.
Presentation and Instructional Video
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