XKT-202 108Khz humidifier Atomizer Controller with water Sensing Cutoff IC SOP8

Description

XKT-202 108Khz humidifier Atomizer Controller with water Sensing Cutoff IC SOP8

The XKT-202 is a small ultrasonic humidifier/atomizer controller IC (commonly in SOP-8 package) used to drive a 108 kHz ceramic atomizing disc and provide automatic water-level detection / dry-run protection. Below are the typical specifications used in USB humidifier modules.

1. Basic IC Information

This IC is commonly used in USB mist maker modules and small humidifiers operating around 108 kHz ultrasonic atomization frequency.

2. Electrical Characteristics (Typical)

Typical USB humidifier modules using this type of controller run on 5 V, ~300 mA and ~2 W power consumption.

3. Functional Features

• Ultrasonic driver oscillator (~108 kHz)

• Piezo transducer drive stage for atomizing plate

• Water detection input (electrode probe)

• Automatic shutdown when water is low

• High-efficiency resonance drive for ceramic disc

• Short-circuit / dry protection

Modules based on this controller automatically stop the atomizer when the water level drops to prevent overheating or damage.

4. Typical Application Circuit Blocks

The XKT-202 usually works with:

1. Piezo atomizing disc (16 mm ultrasonic plate)

2. Step-up drive coil / transformer

3. MOSFET output stage

4. Water detection electrodes

5. 5 V supply (USB or DC)

Typical output drives a microporous ceramic plate with ~740 holes (~5 µm) to produce fine mist droplets.

5. Typical Applications

• USB humidifiers

• Aroma diffusers

• Portable mist generators

• Facial steamers / beauty devices

• Small cooling humidifiers