ADP3808A Datasheet - ON Semiconductor

ADP3808A - High Efficiency Switch Mode Li-Ion Battery Charger

Symbol Value Unit Supply Voltage Input VCC *0.3 to +25 V Power Ground PGND *0.3 to +0.3 V Bootstrap Supply Voltage Input BST *0.3 to +30 V BST to Switching Node BST to SW *0.3 to +6 V Switching Node SW *4 to +25 V High *Side Driv

ADP3808A High Efficiency Switch Mode Li-Ion Battery Charger The ADP3808A is a complete Li-Ion battery charging controller for 3 or 4 cell battery packs.

The device combines accurate final battery charge voltage control with constant current control to simplify the implementation of constant-current, constant-voltage (CCCV) chargers.

The final battery charge voltage is programmable between 4.0 V to 4.5 V per cell, allowing the charging of various cell types.

The charge current i

ADP3808A Features

* Selectable 3

* Cell or 4

* Cell Operation

* Adjustable 4.0 V to 4.5 V Per Cell

* High End-of-Charge Voltage Accuracy

* ±0.4% @ 25°C

* ±0.6% @ 5°C to 55°C

* ±0.8% @ 0°C to 100°C

* Programmable Charge Current, Including Trickle Char