Datasheet Details
| Part number | JW3903 |
|---|---|
| Manufacturer | JoulWatt |
| File Size | 878.49 KB |
| Description | 2.5A Boost Charger |
| Datasheet |
 JW3903 Datasheet
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General Description
The JW®3903 is a highly integrated synchronous switch-mode boost charger for 2- or 3-cell series Li-ion and Li-polymer battery.
The JW3903 provides complete battery charging management includes pre-charge, constant-current fast charge, constant-voltage charge, charge termination and auto recharge.
Key Features
- input voltage based dynamic power management (VIN DPM) to limit the input power and avoid adapter or USB port overloading. An internal thermal feedback loop regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The JW3903 guarantees robustness with input under-voltage and over-voltage protection, battery over voltage protection, thermal shutdown, battery temperature monitoring, and a programmable timer to prevent prolonged charging of.