BQ24650

Product Folder Order Now Technical Documents Tools & Software Support & Community BQ24650 SLUSA75B – JULY 2010 – REVISED JANUARY 2020 BQ24650 Stand-Alone Synchronous Buck Battery Charge Controller for Solar Power With Maximum Power Point Tracking 1 Features 1 Maximum Power Point Tracking (MPPT) capability by input Voltage regulation Programmable MPPT setting 5-V to 28-V Input solar panel 600-kHz NMOS-NMOS Synchronous buck controller Resistor programmable float voltage Accommodates Li-Ion/Polymer, LiFePO4, lead acid chemistries Accuracy – ±0.5% Charge voltage regulation – ±3% Charge current regulation – ±0.6% Input voltage regulation High Integration – Internal loop compensation – Internal digital soft start Safety – Input overvoltage protection – Battery temperature-sensing – Battery absent detection – Thermal shutdown Charge status outputs for LED or host processor Charge enable on MPPSET pin Automatic sleep mode for low power consumption – < 15-μA OFF-state battery discharge current Small 3.5 × 3.5 mm2 16-pin QFN package 2 Applications Solar-powered applications Remote monitoring stations Portable handheld instruments 12-V to 24-V Automotive systems Current-limited power source 3 Description The BQ24650 device is a highly integrated switchmode battery charge controller. It provides input voltage regulation, which reduces charge current when input voltage falls below a programmed level. When the input is powered by a solar panel, th...