LP3947ISD-09/NOPB

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LP3947ISD-09/NOPB is a Power Management Integrated Circuit (PMIC) designed for battery charging applications. It is a dual-channel switching mode regulator, intended to be used in systems with lithium-ion batteries. It is a versatile PMIC with multiple features to ensure safe, reliable, and energy efficient charging.

The LP3947ISD-09/NOPB provides two independent switching regulators, each of which features an independent inputs and outputs, as well as a single-ended input and output. The switching regulators have adjustable voltage and current ratings, allowing them to be tailored to the specific application needs. Additionally, the LP3947ISD-09/NOPB supports programmable input power sources, allowing dynamic adjustment of battery charging rate. The regulated outputs can be programmed to a voltage range of 0.6V to 5.5V, enabling the LP3947ISD-09/NOPB to be used in a wide range of applications.

The LP3947ISD-09/NOPB is designed for use in multi-cell applications, where two or more lithium-ion batteries are connected in series or parallel. The LP3947ISD-09/NOPB supports simultaneous two-channel charging, allowing both the batteries to be charged simultaneously. This ensures faster charge times and enhanced system performance. Additionally, the LP3947ISD-09/NOPB provides a comprehensive set of features to protect the battery pack from overcharging, undercharging, and other conditions that could damage the battery pack.

The LP3947ISD-09/NOPB employs a step-down switching regulator to convert the input voltage into a regulated voltage suitable for charging. The input voltage is typically provided through either a wall outlet or other type of DC power source. The switching regulator features internal feedback to maintain the constant regulated output voltage. Additionally, the switching regulator has a built-in current limiting circuit to prevent overloads and short circuits.

The LP3947ISD-09/NOPB also features an integrated thermal protector circuit, which helps protect the IC from damage caused by excessive temperature. The thermal protector circuit will automatically shut down the device when the temperature exceeds a preset limit. This helps increase the reliability and life of the device, especially in high-temperature environments.

Overall, the LP3947ISD-09/NOPB is a versatile PMIC for battery charging applications. It offers a wide range of features for safe, reliable, and energy efficient charging. The LP3947ISD-09/NOPB employs a switching regulator to step-down the input voltage, and can be programmed to output voltages up to 5.5V. Its thermal protection circuit helps protect the IC from excessive temperatures, and its current limiting circuit can prevent overloads and short circuits.

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