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Electric vehicle (EV) battery storage systems are evaluated using the state of charge (SOC) index, which is a critical metric. Due to its quick charging, lengthy life cycle, and high energy density properties, lithium-ion batteries have been the subject of much SOC estimation research.
The switching charger is essentially a Buck converter with current and voltage control loops that lowers down the VBUS supply to an appropriate voltage for system supply and battery charging.
The Global SoC Li-Ion Battery Switching Charger market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
A fully automatic and highly integrated SoC lithium battery charging management IC with one switching charger, two linear chargers, and fully programmable charge parameters over an I2C compliant interface has been launched by Halo Microelectronics.
It is called the HL7090. A single-cell Li-ion and Li-polymer battery is employed in many IoT and wearable applications, including ear buds, by the HL7090 switching-mode charge management IC, which is small, adaptable, and highly efficient.
To support wireless and USB charging sources, the HL7090 incorporates a load switch. In boost mode, its built-in buck switching charger can power the linear chargers to charge two accessories at once, which is perfect for earbud applications.
Through the I2C interface, the charge parameters are programmable (HL7090FN03 version).The IC fits all of its components into a tiny 3mm x 3mm QFN packaging, including a synchronous PWM controller, power MOSFET, input current detection, high-accuracy current, voltage regulation, and charge termination function.
Until the battery reaches the charge termination voltage, the HL7090 offers completely automatic three-phase battery charging control, including trickle charge, constant-current charge (CC), and constant voltage charge (CV). The charging is stopped depending on the battery voltage and a user-selectable minimum current level, with the input current automatically limited to the host-set value.
The I2C interface has a safety backup in the form of a safety timer with reset control.The HL7090 automatically restarts the charging cycle during normal operation if the battery voltage drops below a built-in threshold and enters sleep mode or high impedance mode when the input supply is improperly connected.
The I2C interface allows the charge status to be communicated to the host. With its fully autonomous charge management, the brand-new SoC Li-ion battery switching charger IC eliminates all concerns associated with charging IoT applications and offers comfort, hassle-free operation, and peace of mind.
