BQ24650RVAR Datasheet PDF - TI

Description

●The bq24650 device is a highly integrated switch mode 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, the input regulation loop lowers the charge current so that the solar panel can provide maximum power output.

●Features

●• 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

●Applications

●• Solar-Powered Applications

●• Remote Monitoring Stations

●• Portable Handheld Instruments

●• 12-V to 24-V Automotive Systems

●• Current-Limited Power Source