LT1513-2IR#PBF

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The LT1513-2IR#PBF is a Battery Charger integrated circuit, belonging to the PMIC - Battery Chargers category. It is a low dropout, low quiescent current, current mode, two-input linear regulator with power FETs, designed to monitor and control two independent sources of input power. The LT1513-2IR#PBF enables users to optimally configure battery charging systems in various applications where two power sources, such as USB2 ports, Solar and wall adapters, are available.

The LT1513-2IR#PBF is most often used in portable and mobile device applications, such as cell-phones, tablets and wearable devices. Before being used, the input voltage must be set according to the application-specific range, that falls between 0.6V and 5.5V, allowing any possible combination of USB, solar, wall adapters, and Li-Ion batteries to be used. It is equipped with the necessary features for monitoring the input and output voltages, current, temperature and overvoltages in order to protect the system.

The LT1513-2IR#PBF features three user-selectable operation mode as forced constant voltage, forced constant current/constant voltage, and automatic operation. In forced constant voltage mode, the input voltages are automatically detected and reset or shut down the charge currents in case of excessive inputs. In forced constant current/constant voltage mode, the user-programmed input current delivers the maximum charge current to the system until the output voltage reaches the predetermined user’s voltage level. Finally, when the automatic operation mode is selected, Charge Current and Charge Voltage are adjusted according to the input direction and battery condition.

The LT1513-2IR#PBF also provides several safety features such as reverse blocking, thermal shutdown, soft start, undervoltage lockout (UVLO) and short circuit protection to ensure against any damage caused by system faults. It is also able to accurately control the output voltage and current levels to maintain the battery life. This integrated circuit features the lowest dropout voltage, quiescent current and programmable adaptation to the input voltage at the same time.

In conclusion, the LT1513-2IR#PBF is an efficient and robust battery charger integrated circuit that is mainly used in portable and mobile device applications. Its low dropout, low quiescent current, current mode, two-input linear regulator with power FETs makes it the perfect power management solution for applications that require dual-input charging. Its user-selectable operation modes, protection features and programmable adaptation makes it a reliable and versatile solution.

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