CN3083 Li-Ion Battery Charger IC for Solar-Powered Systems
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Prices updated: 13 Oct 2026
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About this product
The CN3083 is a linear constant-current/constant-voltage charger IC for single-cell Li-ion and Li-polymer batteries. It has an on-chip power MOSFET, so no external sense resistor or blocking diode is needed. An adaptive 8-bit ADC adjusts charge current to the input source, which makes it suitable for solar-powered systems.
Specifications
- Battery type
- Single-cell Li-ion / Li-polymer
- Charger type
- Linear, constant current / constant voltage
- Adaptive input control
- On-chip 8-bit ADC
- Integrated power MOSFET
- Yes
- USB power specification
- Designed to work within USB power specifications
Frequently asked questions
Can I charge a battery from a solar panel with this IC?
Yes. The CN3083 adjusts its charge current automatically to the output capability of the input supply, which suits solar panels. Check the input voltage limits in the datasheet and match the panel to them.
Does it need a sense resistor or blocking diode?
No. The power MOSFET is integrated and the design does not require an external current-sense resistor or a blocking diode. Other passive parts follow the datasheet's application circuit.
