CBD E-Cigarettes - Shenzhen RIMYI Technology Co., Ltd.

CBD Solution Board

Button-Controlled Output with Adjustable Voltage E-Cig Solution Board

Model: RMY001

Size: 41.1×14.0mm

Low Power: Quiescent Current <15μA

Adjustable Voltage Output

Short Circuit Protection, 10s Over-Inhalation, Over Temperature Protection, Low Voltage Protection

Anti-Interference

Product overview

This is an electronic cigarette circuit board that uses buttons to adjust the output voltage and has a digital display. It mainly consists of the following circuit modules: MCU control module, power output module, digital display and LED light display, charging management module, and lithium battery control module. The button module can recognize the user's operation of smoking by pressing the button and display it through the digital display, so that the user can understand the device status when smoking.

Functional Highlights

Signal processing: The airflow changes captured by the sensor will be converted into capacitance change signals, which will be processed by the ASIC chip and transmitted to the MCU control module for output control.
Protection function: This PCBA solution board has multiple protection functions to ensure user safety during use, including lithium battery protection function, smoking timeout protection, over temperature protection, short circuit protection, and low battery protection.
Module form: SMT packaging is used to form a module form, which allows it to be directly soldered onto the circuit, making it very suitable for PCBA integration, thereby reducing assembly costs and improving production efficiency.

Absolute Maximum Ratings	Parameter	Symbol	Value	Unit
	Supply Voltage (VDD)	VDD	-0.3~5.0	V
	Charging Voltage (VCC)	VCC	-0.3~6.5	V
	AT Output Current	IAT	5~25	A
	Output Load	Rload	0.1~3.5	Ω

Performance Parameters	Symbol	Parameter	Conditions	Min	Typ	Max	Unit
	P	Operating Air Pressure					Pa
	VDD	working voltage		3		4.25	V
	Vuvlo	Low voltage detection threshold	VDD from high to low	2.9	3.1	3.25	V
	Iq	static current	Power saving mode	–	5	8	uA
	Rdson	Switching tube conduction impedance	IAT=1A	–	35	60	mΩ
	Iled	LED output current		–	5	–	mA
	RS	Short circuit protection threshold		–	0.6	–	Ω
	VAT	Constant average voltage output	VDD=4.2V, Output empty load	–	3.6	–	V
	Rload	Output load		0.8	–	3	Ω
	Dmin	Minimum conduction duty cycle	VDD=4.2V	–	90	–	%
	TSMOKE	Smoking timeout		–	10	–	S
	VCC	Charging input voltage		4.5	–	6.5	V
	VFLOAD	Floating charging threshold voltage		4.15	4.2	4.25	V
	VTRKL	Drip flow, constant flow	VDD from low to high	2.95	3	3.05	V
	ICH	Charging current	VCC=5V	–	280	–	mA
	ITRIKL	trickle charge current	VCC=5V	–	50	–	mA
	TSD	Overheating protection threshold		–	90	–	℃

LED/Display Status	working condition	Digital tube display
	Battery power on self-test	The ticker flashes three times
	Normal triggering of cigarette lighting	The battery indicator and gear indicator are always on
	Smoking normally	The battery indicator and gear indicator are always on
	Normal end of cigarette lighting	The battery light and gear light are off
	Smoking timeout	The battery indicator flashes 3 times
	Overcurrent or short circuit protection	The number display "0" stays on for 2 seconds
	Battery undervoltage before smoking	The battery indicator light and L remain on for 2 seconds at the same time
	Battery undervoltage after cigarette lighting	The battery indicator light and L remain on for 2 seconds at the same time
	Normal charging	Dynamic display effect of digital tube after flashing the ticker twice
	Battery fully charged	The marquee lights are all on
	Release charging (charger removed)

Product Features	Use buttons to adjust output, power adjustable
	The circuit has three working modes: charging mode, normal working mode, and power-saving mode;
	In power-saving mode: static current<10 μ A;
	Working voltage: 2.1V~5.0V;
	Supports wide voltage charging (4.5~6.5V); Equipped with OVP overvoltage protection
	Contains protection functions such as overheating (OTP), undervoltage (UVLO), short circuit (SCP), etc;
	Multiple digital display functions;