NSL0100

NSL0100 is a dedicated IC for e-cigarettes, integrating airflow detection, logic control, charge management, LED display, and power driver output modules. The IC accepts and processes pneumatic signals from external sensors; high-reliability detection technology eliminates false triggering, while an optimized logic control method resolves the lockup and non-resettable issues found in conventional solutions. The IC employs a three-stage charge management scheme — trickle, constant current, and constant voltage — compliant with lithium battery charging specifications, with charging input drawn directly from a USB port.

Key features

• Microphone direct input support
• Integrated Li-ion battery trickle, constant current, and constant voltage charging management
• Constant current charging at 650mA
• Full charge voltage 4.2V, accuracy ±50mV
• Integrated 7A discharge MOS switch
• Only 2μA battery consumption when charging input is absent
• Integrated Short Circuit Protection (SCP)
• Integrated Under-Voltage Lockout (UVLO)
• Integrated Over-Temperature Protection (OTP)
• Integrated fast-response discharge Over-Current Protection (OCP)
• Rich LED status indication
• ASIC design
• DFN-8 (2mm×3mm) package
• Default charging current 650mA
• Requires only one external LED to indicate comprehensive charge/discharge status, as well as gradual brightness increase and decrease during ignition
• Integrated high-current discharge MOS switch eliminates external MOS components, significantly reducing BOM cost
• Integrated discharge timeout protection and microsecond-level fast-response overcurrent and short-circuit protection, greatly improving system reliability