LP3947ISDX-51/NOPB

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LP3947ISDX-51/NOPB Application Field and Working Principle

Charge Management ICs, or also known as PMIC - Battery Chargers, are specialized integrated circuits designed to monitor and manage the charging of multiple battery sources. The LP3947ISDX-51/NOPB is a state-of-the-art PMIC designed to enable lightning-fast charging times while concurrently maintaining the battery’s health, extend its life and reduce the risk of fire caused by unsafe charging parameters.

LP3947ISDX-51/NOPB Features

Features of the LP3947ISDX-51/NOPB Charge Management IC include:

• Monolithic integrated device for Li-Ion and Li-ion polymer battery systems
• Input voltage from 4.7V to 20V
• Integrated safety features, including thermal regulation and overcurrent protection
• Accurate, zero-drift, analog-based implementation
• High-voltage bidirectional switching and fusing
• Low-fault latency (as fast as 0.5 microseconds)
• Advanced real-time thermal monitoring and protection

The LP3947ISDX-51/NOPB is uniquely designed to adapt to a range of battery chemistries and sizes, intended for use in laptop and tablet computers, but also suitable for industrial and remote sensing applications.

LP3947ISDX-51/NOPB Working Principle

The LP3947ISDX-51/NOPB offers several high-performance features, making it one of the most power-efficient and reliable PMIC - Battery Chargers available. Its high-side, low-side, and reverse protection (HPLR) real-time monitoring system dynamically detects current to the battery, even in extreme conditions, allowing it to safely transition between charge and discharge states.

The LP3947ISDX-51/NOPB also features an input voltage-sensing circuit, allowing the PMIC to dynamically monitor the state of the system. This includes the detection of an input, low battery, and over-voltage conditions. If a low battery condition is detected, LP3947ISDX-51/NOPB automatically triggers its under-voltage lockout (UVLO) safety function, ensuring that no further charge is supplied.

Other key features of the LP3947ISDX-51/NOPB include a real-time thermal monitoring and protection system and a unique low-voltage dropout (LVDO) protection system. The LVDO is designed to protect the battery during over-discharge conditions, with the PMIC automatically disabling the charger when the battery voltage drops below its safe levels. This extended protection helps to extend battery life and reduce the possibility of overheating.

In addition to its advanced safety features, the LP3947ISDX-51/NOPB also offers high efficiency, wider input voltage range and a lightning-fast charging time. It is designed to utilize a wide range of Li-Ion and Li-ion Polymer battery types, making it highly suitable for many applications.

Conclusion

TheLP3947ISDX-51/NOPB Charge Management IC has been designed to provide the utmost safety and power efficiency in the charging and discharging of Li-Ion and Li-ion Polymer battery systems. Its wide input voltage range, real-time monitoring system, and advanced safety features make it an ideal choice for many applications, including laptops and tablets. Regardless of the application, the LP3947ISDX-51/NOPB is specifically designed to ensure optimal performance, extended battery life and maximum safety.

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