LTC1731ES8-8.4#PBF

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The LTC1731ES8-8.4#PBF is a battery charger integrated circuit (IC) designed to charge and manage multiple battery chemistries in a very versatile, programmable and efficient manner. The charger incorporates the Analog Devices\' Smart PMIC (power management IC) to provide state-of-the-art charging functionality and dynamic voltage and current regulation in a very small package. The LTC1731ES8-8.4#PBF is a dual path charger capable of charging using both battery voltage and AC adapter current sources, and is suitable for use in mobile phones, PDAs, cellular modems and other portable devices.

The LTC1731ES8-8.4#PBF utilizes a high-performance analog core and a digitally-programmable switch-mode power converter to manage its dynamic voltage and current regulation. It offers a wide range of charge current signatures for different chemistries, including NiMH, NiCd, Li-Ion and Li-Polymer. The device features adjustable charge termination, charge status monitoring, as well as full support for microprocessor/DSP control. It also offers a wide input supply range of 3.5V to 18V, making it an ideal choice for use in a variety of applications.

The working principle of the LTC1731ES8-8.4#PBF is as follows. When the device is powered up, it starts to charge the battery using the AC adapter current source. The LTC1731ES8-8.4#PBF\'s state-of-the-art analog core monitors the battery\'s state-of-charge and adjusts the charging current accordingly. Once the battery has reached its peak voltage, the charging circuit switches to a trickle charging mode. This is where the LTC1731ES8-8.4#PBF performs dynamic voltage and current regulation, depending on the battery\'s current charging state and its maximum charge capacity.

The LTC1731ES8-8.4#PBF is an ideal choice for battery charge management in portable devices such as mobile phones, PDAs, GPS devices, digital cameras and other electronic gadgets. It utilizes a high-performance analog core, programmable digital switches and efficient circuitry to deliver versatile charging capability and dynamic voltage and current regulation. With its wide input supply range and its ability to manage a wide range of chemistries, the LTC1731ES8-8.4#PBF is a reliable and cost-effective choice for portable devices with multiple power management needs.

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