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BQ25798 Datasheet 5-a Buck-boost Battery Charger

Manufacturer: Texas Instruments

Overview: BQ25798 SLUSDV2B – MAY 2020 – REVISED JANUARY 2023 BQ25798 I2C Controlled, 1- to 4-Cell, 5-A Buck-Boost Battery Charger with Dual-Input Selector, MPPT for Solar Panels and Fast Backup Mode.

General Description

The BQ25798 is a fully integrated switch

Key Features

  • High power density, high integration buck-boost charger for 1-4 cell batteries supporting USB PD 3.0 profile.
  • Integrates four switching MOSFETs, BATFET.
  • Integrates input and charging current sensing.
  • Highly efficient.
  • 750-kHz or 1.5-MHz switching frequencies.
  • 5-A charging current with 10-mA resolution.
  • 96.5% efficient: 16-V battery at 3A from 20V.
  • Supports a wide range of input sources.
  • Autonomously sampled open ci.

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