LTC4098EUDC-1#PBF

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The LTC4098EUDC-1#PBF, also known as Lithium-Ion Battery Charger, is a general purpose charger for a variety of applications. It is a specifically designed battery management IC that manages the entire charging process for lithium-Ion (Li-Ion) rechargeable batteries. The device is capable of charging one or two separate Li-Ion series or two-cell Li-Ion packs with a single IC, and can supply up to 1.5A of charging current.

The LTC4098EUDC-1#PBF is well-suited for devices such as laptop computers, handheld communication devices and digital cameras that require reliable battery management with extremely small size and high power efficiency. Therefore, it is commonly used in portable electronics and other applications where size, flexibility and cost management are key concerns.

The LTC4098EUDC-1#PBF alternately charges each cell of a two-cell Li-Ion series or two separate Li-Ion cells, with a single external resistor per cell. With a C/10 charge current set with a single resistor, the IC is designed to minimize the number of external components required. It also provides a linear charge current control over a wide range recommended by the battery manufacturer and a temperature-controlled, constant-current/constant-voltage (CC/CV) charging algorithm that can be adjusted to accommodate the required charge conditions.

The LTC4098EUDC-1#PBF also provides several special charging features that improve battery life and performance, including low-battery detection, overtemperature protection, overvoltage protection and overcurrent protection. The IC also offers charging status and fault reporting through LED indicators and digital outputs.

The working principle of the LTC4098EUDC-1# PBF is as follows. When the charger is first connected, the IC selects a low current and voltage charging profile according to the battery type and charge status information. During this phase, it determines the health and state of the battery, how much and how quickly it should charge the battery, and sets the charge current and voltage accordingly. The IC then maintains these settings until the battery is fully charged, and then switches to a maintenance voltage and current to keep the charge cycle going. During the maintenance phase, should the battery conditions drop below a certain point, the IC will stop charging the battery to prevent overdischarge.

In summary, the LTC4098EUDC-1#PBF is a general-purpose battery management IC specially designed to manage the charging process of lithium-ion rechargeable batteries. The device is well-suited for compact, cost-effective portable electronics applications, and provides a range of safety features to ensure proper battery operation and long life. It also uses a linear charging algorithm to select the appropriate charge current and voltage, and allows the user to easily monitor both the charge cycle and battery health.

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