ETA4257 Overview
ETA4257 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 ETA4257 ideal for portable applications. No external sense resistor or blocking diode is necessary for the ETA4257.
ETA4257 Key Features
- 40V input standoff voltage
- 4.2V charge termination voltage
- 2.6V trickle charge threshold
- Charge current programmable, up to 1.2A
- 400nA BAT current when no charging
- Soft-start limits in-rush current
- Fault and Charge Status Indicator
- DFN3x3-10