AOZ1401DI

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The AOZ1401DI application field and working principle is a very important concept in PMIC (Power Management IC) and Battery Management. PMIC is used to provide power control and management for a wide range of applications, including mobile phones, smart TVs, wearable devices and many more.

The AOZ1401DI is a buck–boost DC/DC converter with battery charging and over-voltage protection specifically designed for handheld device applications. It implements a dynamic voltage scaling mobile PMIC synchronous buck–boost converter that can operate in buck, boost or buck–boost modes to provide high efficiency between any battery or adapter input source and the corresponding output voltage.

The primary application field of AOZ1401DI is in battery management. It offers a complete solution for battery charging that is capable of charging a Li–Ion or Li–Poly battery from 0-4.2V with output current up to 2A. The charger can detect the battery voltage and current, set the adequated charge voltage, charge the battery with in a pre-determined programmed current. The battery management features of the AOZ1401DI help prevent overcharge, over-discharge and reverse-discharge conditions that may lead to battery damage.

In general, the operation principle of AOZ1401DI is that a higher voltage source is used to drive the converter core, which in turn boosts the battery voltage from its input voltage value to the desired charging voltage. The 0.3V reference to the converter core is generated from the battery voltage and current information. The converter core driver will then perform voltage conversions to adjust and maintain the output voltage at the regulated value.

The AOZ1401DI converter provides an output current limiting feature with the help of a single external current sense resistor. Internal error amplifiers are used to monitor the output voltage and compare it to the reference voltage. Any deviation in the output will cause an error signal to be generated, which results in a response from the control loop to re-balance the output voltage.

In addition, the AOZ1401DI provides integrated circuit protection (including over-temperature, over-current, under-voltage, and ESD protection), as well as current limiting and thermal shutdown functions. It is a perfect choice for the battery management needs for high current battery applications, like cameras, mobile phones, cordless tools, and portable medical equipment.

With highly efficient performance, integrated protection functions and small footprint, the AOZ1401DI is an excellent choice for battery management applications. And as it implements a buck–boost DC/DC converter with battery charging and over-voltage protection, it is easy to use and requires minimal external components.

The specific data is subject to PDF, and the above content is for reference