Application Areas

Household vacuum cleaners, car vacuum cleaners

Multi-protection mechanism

Protection functions are provided for motor stall, Li-battery charging/discharging, short circuit and temperature.

Reduced parts & cost

The two-in-one design of the control board and Li-battery protection board has greatly reduced both the PCB area and cost.


With their flexibility and ease of use, Li-battery-powered cordless vacuum cleaners have become an essential part of home cleaning.
Holtek has released the 8-Bit Flash MCU HT66F018 which can be used for cordless vacuum cleaner product applications. It can implement a vacuum cleaner dual-speed control function as well as setup multiple over-current protection levels simultaneously for functions such as motor stall and short circuits. A specific Li-battery protection IC is also used to implement battery over-charging/discharging protection and over-current protection in addition to battery charging/discharging temperature protection functions.
Holtek provides a complete set of supporting documentation, such as block diagrams, circuit diagrams, PCB files and parts lists etc, to assist users to develop their cordless vacuum cleaner products rapidly and conveniently.


Download Instructions

Thank you for visiting our website. You can download the following types of file content from this website

PCB Block Diagram Code

All information, trademarks, logos, graphics, videos, audio clips, links and other items appearing on this website ('Information') are for reference only and is subject to change at any time without prior notice and at the discretion of Holtek Semiconductor Inc. (hereinafter 'Holtek', 'the company', 'us', 'we' or 'our'). Whilst Holtek endeavors to ensure the accuracy of the Information on this website, no express or implied warranty is given by Holtek to the accuracy of the Information. Holtek shall bear no responsibility for any incorrectness or leakage.
When using any of the services provided on this website, it indicates that you have read, understood and agreed to comply with the relevant regulations of the site, the declaration of intellectual property and disclaimer. If you do not agree to these terms of service it is important that you stop using the services provided by this website. Thank you.