ETA4116
ETA4116 is 1mA Termination Current Linear Charger manufactured by ETA.
DESCRIPTION
ETA4116 is a single cell, fully integrated constant current (CC)/constant voltage (CV) Li-ion battery charger. Its pact package with minimum external ponents requirement makes the ETA4116 ideal for portable applications. No external sense resistor or blocking diode is necessary for the ETA4116. Build-in thermal feedback mechanism regulates the charge current to control the die temperature during high power operation or at elevated ambient temperature. The ETA4116 has a pre-charge function for trickle charging deeply discharged batteries. 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 output current then decays and is finally terminated once the charge current drops to 1/10th of the programmed value. The ETA4116 keeps monitoring the battery voltage and enables a new charge cycle once the voltage drops by 120m V below the CV value. ETA4116 is in a DFN2x2-8 package.
FEATURES
- 16V input standoff voltage
- 4.35V charge termination voltage
- 1m A termination current
- 2.9V trickle charge threshold
- Charge current programmable, up to
120m A
- 250n A BAT current when no charging
- Soft-start limits in-rush current
- DFN2x2-8
- Ro HS pliant
APPLICATIONS
- E-cigarette
- Toys
- Bluetooth applications
- Li-ion battery powered devices
TYPICAL APPLICATION
1 IN
BAT 8
VBAT/VSYS
3 STAT ETA4116 NTC 6
2 STDBY
Li +
Battery
R ISET
4 EN
ISET 7
ORDERING INFORMATION
PART No.
ETA4116D2I
PACKAGE
DFN2x2-8
TOP MARK...
