BQ24640RVAT

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The BQ24640RVAT is a specialized intelligent Power Management Integrated Circuit (PMIC), specifically designed to manage power rail converters, energy harvesting systems and micro-super capacitors. The integrated circuit provides an ultra-low quiescent current and low-loss control, making it ideal for use in portable devices, such as smartphones, tablets, and wearables, where energy conservation is critical to their battery life. It also has digital capabilities that enable its integration in more sophisticated power systems.

Intermittent power sources, such as wind, solar and energy harvesting sources, are becoming ubiquitous in today’s mobile devices. BQ24640RVAT is designed specifically to manage this type of intermittent power, by providing an ultra-low quiescent current, low power consumption and control over input and output power conversion. This capability makes BQ24640RVAT ideal for battery-powered applications such as wearables, smartphones, and tablets.

When used to manage micro-super capacitors, BQ24640RVAT provides a wide range of advantages. It supports fast charging and discharging of the super capacitors with a high precision, low power consumption and digital enablement. This makes it ideal for use in energy scavenging applications, such as security systems and wireless sensor networks, where power availability and energy consumption are often limited.

The working principle of BQ24640RVAT is based on a buck-boost converter topology. This topology provides a non-scaling output voltage, allowing the device to quickly respond to changes in load conditions. BQ24640RVAT combines the buck converter stages for pre-regulating the power inputs and the boost converter stages for providing an output voltage, subject to an adjustable output voltage range. This combination provides the flexibility and power efficiency required to power any design.

In addition to its power conversion capabilities, BQ24640RVAT provides a range of protection features to ensure the circuit remains functional and reliable, even in the most demanding power environments. This includes over-current, over-voltage, reverse current, auto-restart, and reverse-current protection, as well as a comprehensive suite of diagnostic and status bits. In addition to that, BQ24640RVAT is designed to be driverless, allowing it to be deployed in a wide range of applications without the need for driver software development.

The BQ24640RVAT is an advanced, reliable and highly integrated power management integrated circuit (PMIC). By its wide range of features such as a buck boost converter topology, ultra-low quiescent current and low-loss control, integrated protection features and driverless operation, BQ24640RVAT is the perfect choice for many power rail converters, energy harvesting systems, micro-super capacitors and peripheral power applications, such as wearables, smartphones and tablets.

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