BQ24800

Product Folder Order Now Technical Documents Tools & Software Support & Community BQ24800 SLUSE37 – MARCH 2020 BQ24800 SMBus 1- to 4-Cell Buck Battery Charge Controller With Peak Power, Hybrid Power Boost and Battery Only Boost Modes 1 Features 1 Hybrid Power Boost Mode to power up system from adapter and battery together – Ultra-fast transient response of 150 µs to enter Hybrid Power Boost Mode Battery Only Boost Mode to extend battery run time Peak power two-level input current limit to maximize the power from adapter and minimize battery discharge Charge 1- to 4-cell battery pack from 4.5- to 24-V adapter High accuracy power and current monitoring for CPU throttling – Comprehensive PROCHOT profile – ± 2% Current monitor accuracy – ± 5% System Power Monitor Accuracy (PMON) Automatic NMOS power source selection from adapter or battery – ACFET Fast turn on in 100 µs when exiting learn mode from battery removal Programmable input current, charge voltage, charge and discharge current limit – ±0.4% Charge voltage (16-mV/step) – ±2% Input current (64-mA/step) – ±2% Charge current (64-mA/step) – ±2% Discharge current (512-mA/step) High integration – Battery LEARN function – Battery present monitor – Boost Mode indicator – Loop compensation – BTST Diode Enhanced safety features for over-voltage protection, over-current protection, battery, inductor, and MOSFET short-circuit protection Switching frequency: 300 kHz, 400 kHz, 600 kHz, and 800 kHz Realtime sy...