ADP2291ACPZ-R7

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PMIC - Battery Chargers is a type of power management integrated circuit (PMIC) designed specifically for efficient charging of multiple battery types. This includes batteries used to power various mobile and stationary electronic devices such as mobile phones, tablets, laptops, and more. Charging circuits using PMICs can charge batteries more quickly and safely than other charging solutions. The ADP2291ACPZ-R7 is a programmable switching battery charger featuring two independent synchronous buck converters and linear charger. It is an ideal power management solution for portable electronic devices that require a rapidly charging battery.

ADP2291ACPZ-R7 Application Field

The ADP2291ACPZ-R7 is designed for quickly charging multiple-cell Lithium-Ion (Li-Ion) and Lithium-Polymer (Li-Poly) batteries in portable electronic devices such as cell phones and mobile phones. Charging circuits built around this PMIC can also be used to charge Nickel-Cadmium (NiCd) and Nickel-Metal Hydride (NiMH) batteries in portable electronic devices.

The ADP2291ACPZ-R7 is capable of charging multiple-cell batteries with a wide range of capacities and voltages. Battery cells with capacities ranging from 400mAh to 3000mAh and voltage ranges of 1.2V up to 4.2V are supported, providing the flexibility that is necessary for powering most devices. The ADP2291ACPZ-R7 also has an adjustable current limit that ranges from 150mA to 3A.

ADP2291ACPZ-R7 Working Principle

The ADP2291ACPZ-R7 is built around two independent synchronous buck converters and a linear charger. The buck converters regulate the voltage to the battery pack and provide constant current charging for high-capacity batteries. The linear charger provides a low quiescent current, which is necessary for charging low-capacity batteries without overcharging them. A programmable voltage limit prevents overcharging, while a programmable timer monitors the battery charge cycle and terminates it when the battery is fully charged.

The ADP2291ACPZ-R7 also includes safety features such as thermal regulation and battery current protection. The thermal regulation feature monitors the die temperature of the chip and reduces the charging current if it reaches an unsafe level. The battery current protection feature prevents an excessive current from flowing to the battery and prevents any damage to the device.

The ADP2291ACPZ-R7 is designed for easy integration into a variety of portable devices. It can be integrated with the other components of the power management system in the device, eliminating the need for extra components and reducing the overall size of the device. It is also designed for low-noise operation, making it ideal for powering portable audio and video devices.

Conclusion

The ADP2291ACPZ-R7 is a highly integrated PMIC designed for quickly and safely charging multiple-cell batteries in various electronic devices. Its two synchronous buck converters and linear charger provide fast, efficient charging, while its safety features ensure the battery and device are protected. Its low quiescent current and low noise design make it an ideal choice for powering portable audio and video devices.

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