BQ24650RVAT Datasheet PDF - TI

●The BQ24650RVAT is a synchronous switch-mode integrated Battery-charge Controller for solar power with maximum power point tracking 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. The BQ24650 offers a constant-frequency synchronous PWM controller with high accuracy current and voltage regulation. The charge controller charges the battery in three phases such as pre-conditioning, constant current and constant voltage. Charge is terminated when the current reaches 1/10 of the fast charge rate. The pre-charge timer is fixed at 30 minutes. The charge controller automatically restarts the charge cycle if the battery voltage falls below an internal threshold and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.

● Maximum Power Point Tracking (MPPT) capability by input voltage regulation

● Programmable MPPT setting

● Resistor programmable float voltage

● ±0.5% Charge-voltage regulation

● ±3% Charge-current regulation

● ±0.6% Input voltage regulation

● Internal loop compensation

● Internal digital soft start

● Input over-voltage 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

● <15µA Off-state battery discharge current

● Green product and no Sb/Br

●This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.