LTC4098EPDC#PBF

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Power management integrated circuits (PMIC) are specialized integrated circuits that typically combine several highly efficient power control functions into a single device. The LTC4098EPDC#PBF is a PMIC that offers a high level of integration and the ability to monitor, charge and protect batteries in many applications. This PMIC is specifically designed for Li-ion and Li-polymer batteries and can be used in low levels of current or voltage for a variety of battery-powered devices.

The LTC4098EPDC#PBF is a standalone Li-ion/Li-polymer battery charger controller with integrated power path management. This device incorporates a synchronous buck converter, two low-dropout linear regulators, two configurable switches and several protection features in a single feature-rich, low-cost package. This PMIC enables a long battery life by providing accurate, highly efficient charging and power path management in one device. It can be used to charge batteries in most applications while still providing overvoltage, overcurrent, overtemperature and cell imbalance protection.

The core of the LTC4098EPDC#PBF is a synchronous buck converter which provides 5.5V to 15V input voltage range and up to 1.5A output current capability. This controller is capable of switching up to 3A output current with external MOSFETs. An on-board charge controller senses the battery’s charge state and adjusts the charging parameters appropriately. Additionally, its built-in Low Loss differential Remote Sense Amplifier eliminates the need for an external sense resistor to reduce power loss in long wiring applications. The device comes with integrated short circuit and overheating protection and includes a precision voltage reference to ensure accurate charging voltage.

In addition to the state-of-the-art synchronous buck converter, the LTC4098EPDC#PBF incorporates two low-dropout linear regulators. The first is an adjustable output regulator which provides power to the system in compliance with the VBUS input voltage specification. The other is a fixed output regulator, which provides a predetermined system voltage for proper system operation. Both of the linear regulators have a low dropout voltage, making them ideal for applications where power savings are important.

The LTC4098EPDC#PBF also features two configurable switches, which can be used to control the power supply to the system. The first switch is adjustable, while the second switch is fixed and is designed to limit the maximum current drawn from the battery. This feature helps to protect the battery from damage due to excess current draw.

The LTC4098EPDC#PBF also includes advanced safety features, such as overvoltage, overcurrent, overtemperature and cell imbalance protection. By monitoring the input voltage, the device can detect if the input voltage exceeds the prescribed safe range and will shut off the charge current to prevent damage to the battery. Additionally, the device can detect excessive temperature, overcurrent and cell imbalance conditions, and will reduce or disconnect charge current accordingly to prevent further damage.

The LTC4098EPDC#PBF’s features and functionality make it suitable for a variety of battery-powered applications, including portable consumer electronics, automotive and medical products. The device provides high efficiency charging, power path management and safety features in a single, low-cost package. The LTC4098EPDC#PBF is the perfect choice for applications where efficient and reliable battery charging and monitoring are required.

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