BQ25790 Datasheet (Texas Instruments) - Buck-Boost Battery Charger

BQ25790, Buck-Boost Battery Charger

The BQ25790 is a fully integrated switch-mode buckboost charger for 1-4 cell Li-ion battery and Lipolymer battery.

The integration includes 4 switching MOSFETs (Q1, Q2, Q3, Q4), input and charging current sensing circuits, the battery FET (QBAT) and all the loop compensation of the buck-boost conver

BQ25790 Features

* 1 High efficient synchronous Switch Mode buckboost charger for 1-4 cell battery

* 750-kHz and 1.5-MHz Programmable switching frequencies

* Efficiency optimized for charging 2s battery, 96.5% efficiency with 9-V input and 94.5% efficiency with 15-V input at 3-A ICHG