ETA ETA4040
ETA4040 is a single cell, fully integrated constant current (CC)/constant voltage (CV) Li-ion battery charger. Its compact package with minimum external components requirement makes the ETA4040 ideal for portable applications. The ETA4040 has the function of pre-charge, which can charge the deeply discharged batteries by trickle.| Part No. | ETA4040 |
|---|---|
| Datasheet | ETA4040 Download |
| Manufacturer |  ETA |
| Description | 1A Fully Integrated Linear Charger |
| Buy | Stock & Price |
DESCRIPTION
FEATURES
No external sense resistor or blocking diode is necessary for the ETA4040. Build-in thermal feedback mechanism regulates the charge current to control the die temperature during high power operation or at elevated ambient temperature. The fast charge current can be programmed by an external resistor. CV regulation mode is automatically enabled once the battery’s charging curve reaches the constant voltage portion. The pre-charge current and the termination current threshold are programmed by an external resistor as well. The ETA4040 keeps monitoring the battery voltage and enables a new charge cycle once the voltage drops by 100mV below the CV value. ETA4040 is in a DFN2X2-10 package.● 30V Input Standoff Voltage
● 4.2V Charge Termination Voltage
● Charge Current Programmable, Up to 1A
● Pin Selectable USB 100mA or 500mA Maximum Input Current Limit
● Programmable Termination Current and Pre- charge Current Threshold
● Operation over JEITA Range via Battery NTC
● Fi...
