High-Power E-Cigarettes

3-Wire MEMS Mic, Load 0.1~3.5Ω, Negative Pressure -150±50Pa High-Power E-Cig Circuit Board

Model: RMY004
Size: 44.9×12.0mm
Low Power: Quiescent Current <15μA
Adjustable Power (5-80W)
Short Circuit Protection, 10s Over-Inhalation,Over Temperature Protection, Low Voltage Protection
0.96″ Color Screen with UI

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This is an electronic cigarette circuit board triggered by an airflow sensor for smoking and with adjustable power. It has dual outputs and is mainly composed of the following circuit modules: MCU control module, dual power output module, OLED display screen, colorful light module, charging management module, and lithium battery control module. It can detect smoking actions and control the output through MCU, and display the output wattage and output status through a digital tube.

Functional Highlights

MEMS airflow sensor: The microphone airflow sensor detects changes in air pressure and identifies user smoking behavior.
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, 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	-0.3~6.0	V
	Charging Voltage (VCC)	VCC	-0.3~6.5	V
	AT Output Current	IAT	25	A
	Output Load	Rload	0.1	Ω

Performance Parameters	Symbol	Parameter	Conditions	Min	Typ	Max	Unit
	P	Operating Air Pressure		-150	-200	-250	Pa
	VDD	working voltage		3.2		4.2	V
	Vuvlo	Low voltage detection threshold	VDD from high to low	2.8	3	3.1	V
	Iq	static current	Power saving mode		15		uA
	Rdson	Switching tube conduction impedance	IAT=1A				mΩ
	Iled	LED output current		–	–	–	mA
	RS	Short circuit protection threshold			0.7		Ω
	VAT	Constant average voltage output	VDD=4.2V, Output empty load	–	–	–	V
	Rload	Output load		0.1	–	3.5	Ω
	Dmin	Minimum conduction duty cycle	VDD=4.2V	–	–	–	%
	TSMOKE	Smoking timeout			10		S
	VCC	Charging input voltage				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		1500		mA
	ITRIKL	trickle charge current	VCC=5V		100		mA
	TSD	Overheating protection threshold			85		℃

LED/Display Status	working condition	0.96-inch display screen
	Battery power on self-test	Screen display main interface
	Normal triggering of cigarette lighting	Screen time scrolling, displaying output voltage
	Smoking normally	Screen time scrolling, displaying output voltage
	Normal end of cigarette lighting	Screen display main interface standby
	Smoking timeout	Screen prompt “10s LIMT”
	Overcurrent or short circuit protection	Screen prompt “SHORT ATOMIZER“
	Battery undervoltage before smoking	Screen prompt “BATTY LOW”
	Battery undervoltage after cigarette lighting	Screen prompt “BATTY LOW”
	Normal charging	Screen battery icon scrolling
	Battery fully charged	–
	Release charging (charger removed)	Screen battery icon stops running

Product Features	Adjustable power, precise adjustable output power of 5-80W
	The output mode can be selected from temperature control mode, power regulation mode, etc
	Using MEMS airflow sensors for stable performance;
	Working voltage: 2.1V~5.0V;
	Supports wide voltage charging (4.5~6.5V);
	Includes protection functions such as over temperature (OTP), low voltage (UVLO), short circuit (SCP), etc;
	Using a 0.96 display screen, it has rich UI display functions;