LP3947ISDX-51

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LP3947ISDX–51 is one of the most important Power Management Integrated Circuits (PMICs).It belongs to the family of battery chargers, being a fully integrated, dual channel Li-Ion/Li-Pol multi-chemistry battery charger. The LP3947ISDX-51 provides two independent switches that can be used to regulate input current and charge voltage.

The LP3947ISDX-51 is fully compliant with the charging requirements of the USB Battery Charging Specification Revision 1.2 and Apple’s iPad USB Power Adapter Specification. It is ideal for a wide range of applications in digital handheld devices, portable equipment and industrial battery charging systems.

The LP3947ISDX-51 has two input current control pins, one for each channel. The current can be limited to a particular value or can be controlled to vary by a set proportion. The charger also features input current sensing, so that the current can be accurately measured and regulated to prevent damage to the battery.

The LP3947ISDX-51 is designed for two major operating modes. In the single cell mode, it can charge a single Li-Ion cell. In the dual cell mode, it can charge two Li-Ion cells in parallel. In either mode, the charger can output up to 1A of current.

The LP3947ISDX-51 also includes a Built-In-Controller (BIC) to enable easy programming of the charger. The BIC provides a precise voltage and current control without any external components. This also allows for the precise timing of the charging process, thereby making it possible to maximize the charging cycle efficiency.

The LP3947ISDX-51 features a wide range of safety features, to protect the battery and the system from overcharging and short circuit. It also includes several protection features, such as thermal protection which cuts off power when the temperature exceeds the threshold, and overdischarge protection which prevents the battery from over discharging.

The LP3947ISDX-51 is highly efficient and provides high power density. This makes it an ideal choice for applications where space is a constraint. The LP3947ISDX-51 can operate at temperatures ranging from -40C to +85C and is also fully RoHS compliant, making it perfect for use in numerous applications.

In conclusion, the LP3947ISDX-51 is a highly recommended Power Management Integrated Circuit from the battery charger family. It has numerous features that make it perfect for use in a wide range of applications in industrial and digital device markets. Its safety features and high efficiency, coupled with a wide temperature range and low profile package make it an excellent choice.

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