The new non combustion electronic cigarette uses the latest microelectronic technology and atomization technology to extract plant essence from natural plants such as wormwood, and atomize it into smoke for smokers to smoke. The extracted plant essence has the same smoking taste as ordinary tobacco, but does not contain the toxic substances produced during the combustion of ordinary tobacco, so it can not only satisfy the enjoyment of smokers, but also does no harm to smokers. The greater achievement is that this healthy electronic cigarette can eliminate the harm of second-hand smoke to people around smokers. Because of this, healthy electronic cigarettes are really becoming a substitute for traditional cigarettes. For this reason, our company has specially developed a special chip for rechargeable electronic cigarettes - FM8023B. The chip is designed by ASIC, and its working state is very stable. There will be no crash of MCU scheme, and there will be no problem caused by lower than the critical voltage The chip cannot be reset. The chip has the function of heating wire short circuit protection, and the output is cut off when the heating wire is short circuited. FM8023B has extremely low power consumption in power-saving mode, with a static current maintained below 5uA. At the same time, the chip has a visual LED working indicator function, with one LED light indicating a variety of states, including normal charging status, fully charged charging status, smoking timeout status, battery undervoltage status, overcurrent/short circuit status, as well as gradually turning on and off when smoking. FM8023B has superior charging performance, with complete battery protection function and high-precision charging voltage error detection. It integrates three-stage charging management of trickle current, constant current, and constant voltage. The charging input can be directly taken from the USB port, and the constant current charging current defaults to 340mA without the need for external resistance settings. When the voltage of the lithium battery is less than 2.7V (typical value), it is trickle charging (charging current of 55mA), which can ensure that the battery is not damaged. When the battery voltage is charged to 2.7V (typical value) or above, high current constant current charging (charging current of 340mA) begins. When the battery voltage approaches 4.2V, the charging current gradually decreases and finally enters constant voltage mode until the battery is fully charged.
    FM8023B integrates voltage regulator and power transistor internally, without the need for external MOS, with simple peripheral application circuits, easy processing, reduced losses, and low system costs; The chip adopts DFN-6 (3 * 2 * 0.85mm) packaging, which can achieve good heat dissipation effect while having a small packaging volume.

In power-saving mode, the static current is small (<5uA)
Contains short circuit protection function (SCP)
Contains undervoltage protection function (UVLO)
Equipped with overheat protection function (OTP)
Complete LED work indicator function
Wide voltage 4.5-5.5V charging, superior charging performance, can be directly charged through USB interface
High accuracy of charging voltage detection error
Intelligent switching between trickle charging, constant current charging, and constant voltage charging during the charging process,
Ensure the safety of the battery during the charging process
Specially designed electronic switch with strong anti-interference performance, capable of withstanding impacts and vibrations
High decibel sound and magnetic field will not affect the normal operation of the switch, and the performance is stable and reliable
The peripheral application circuit of the system is simple, requiring only one LED light and two capacitors, with extremely low cost
Adopting ASIC design, stable working state
Adopting DFN-6 (3 * 2 * 0.85mm) packaging

Rechargeable electronic cigarettes

DFN-6(3*2*0.85mm)