BQ24123RHLT

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The BQ24123RHLT is a battery charger IC (Integrated Circuit) from Texas Instruments\' Battery Management family. A battery charger IC is a type of power management integrated circuit (PMIC) that can regulate the charging process of batteries including lithium-ion, lead-acid, nickel-metal-hydride, and other types of rechargeable batteries. The BQ24123RHLT is a USB power delivery (PD)-compliant, high-efficiency, dual-output linear battery charger designed for use in a wide variety of applications.

The BQ24123RHLT provides two independent battery charge outputs; a programmable main charge output and a fixed-voltage battery monitor output. The main charge output is capable of providing up to 7.5A of charge current and it is configurable via various register settings. The battery monitor output is used to monitor the battery\'s remaining capacity while providing a fixed analog voltage, the magnitude of which depends on the selected input source and the battery\'s remaining capacity.

The BQ24123RHLT operates in a wide range of input voltage, from 6 V to 20 V, and supports input sources such as USB PD, USB Type-C, AC adapter, and direct current (DC) inputs. This enables the capability to charge two batteries of different chemistries and voltages simultaneously from the same input source. The integrated current sensing circuitry provides maximum charge current and peak current monitoring, while the new thermal protection algorithm reduces power dissipation to ensure that temperature-sensitive components remain within the safe operating area.

Aside from the combined USB/DC and battery monitor outputs, the BQ24123RHLT also features several safety features and protections. These include over-voltage protection, over-temperature protection, adjustable reverse battery protection, under-voltage lock-out, current limit protection, and output over-current protection. The device also includes reverse current protection, active pull-low and short circuit protection.

BQ24123RHLT battery charger ICs are suitable for a variety of applications such as wireless and wearable devices, personal health and fitness monitors, e-readers, smartphone power protection, and portable medical monitors. The IC also enables the capability to charge two batteries of different chemistries and voltages simultaneously from the same input source, such as USB Power Delivery, USB Type-C, AC adapter, and DC inputs.

In summary, the Texas Instruments BQ24123RHLT is a high-efficiency, multi-output battery charger IC that is suitable for a variety of applications. It provides two independent battery charge outputs; a programmable main charge output and a fixed-voltage battery monitor output, and features a range of safety features and protections. The BQ24123RHLT is a powerful, integrated battery charging solution that is suitable for a range of devices.

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