FAN3988IL6X

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The FAN3988IL6X battery charger is a highly efficient low quiescent current, constant frequency synchronous buck current-mode controller designed to charge a variety of battery types, especially Li-ion and Li-polymer batteries. In today\'s popular consumer electronics products, to reduce system space consumption, the battery charging and protecting IC plays an increasingly important role. A proper Li-ion battery charger must support various kinds of application requirements. The FAN3988IL6X is such a Li-ion battery charger controller that can meet various application requirements and provide reliable charging performance.

The FAN3988IL6X\'s operating frequency range is from 200kHz to 1.2MHz. This allows for design flexibility and the ability to adapt the charger for multiple battery types. It also allows the designer to maximize system efficiency without compromising the charger\'s ability to adjust the current profile for safe charging of Li-ion and Li-polymer batteries. The battery charger includes on-chip MOSFET drivers that can handle up to 4A peak output current. This enables the charger to handle higher charging current requirements, while keeping the system efficiency high and the thermal design quite manageable.

The FAN3988IL6X battery charger uses a proprietary PWM algorithm to provide an optimized charging current profile that is suitable for charging any type of Li-ion battery. The Intelligent Current Control (ICC) feature embedded in the charger adds additional safety to the charging algorithm by ensuring that the charging current never exceeds the maximum rated charge current. The charger also has an internal over-voltage protection (OVP), reverse battery protection (RPP), and thermal protection (TSP) to protect the battery from being over-charged and/or over-heated.

The FAN3988IL6X supports a wide range of input voltages from 4.5V to 28V, making it suitable for use with a variety of power sources. The charger also includes an integrated Delay On Disconnect (DOD) feature that can be used to keep the charger active for a pre-set period of time after the power source is disconnected. This function helps added safety to the system by preventing short-circuiting of the battery. Additionally, the FAN3988IL6X is designed to meet the stringent EMI requirements of applications in the consumer electronics and industrial markets.

Owing to its wide input operating voltage, its low quiescent current, and the integrated charging current and voltage protection features, the FAN3988IL6X battery charger is suitable for use in consumer electronics products such as notebooks and tablet PCs, portable media players, mobile phones, digital cameras, and other battery-powered applications. Furthermore, the charger\'s ability to easily adapt to different battery types makes it an ideal choice for designers who need to develop a wide range of consumer electronic products.

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