LT1640AHIN8#PBF

LT1640AHIN8#PBF are Hot Swap Controllers that belong to the Power Management Integrated Circuit (PMIC) category. It is designed to onboard and hot swap connectors with high power applications while providing control and protection circuitry. The Hot Swap Controller simplify the design and optimization of connector applications and can be used in multiple systems like telecom, Networking, Industrial and medical devices.

In a high power application like telecom, the Hot Swap Controller is responsible for controlling the hot swap process, hence protecting sensitive components from damage. It provides a high degree of protection from hot-swapping by providing a slew rate control, inrush current limit and a protection circuitry against shorted or over current conditions.

The Hot Swap Controller also has a presence detect pin that allows the circuit to detect connection and disconnection. This pin is active when the current pass through it and allows the Hot Swap Controller to detect the presence of a device or circuit.

LT1640AHIN8#PBF is a linear Hot Swap Controller IC that utilises a voltage reference circuit and a comparator to settle the output voltage during the hot swap process. The voltage reference circuit is set at a nominal voltage of 5.5V, and the comparator compares the incoming voltage with the nominal reference voltage. The output voltage of the Hot Swap Controller is then regulated and the inrush current of the circuit is limited. This constant voltage and current regulation prevents equipment damage and failures due to over-voltage/current &/or under-voltage/current as well as proper device power up.

The Hot Swap Controller also provides protection against over-temperature, over-current and short-circuit conditions. Over-temperature protection will limit the power required to the device, while the over-current protection will cut off the power to the device if the current levels are too high. Short circuit protection will prevent and limit the current flow protective element, in cases where there is a short circuit.

LT1640AHIN8#PBF Hot Swap Controller is one of the most popular Hot Swap Controllers on the market. It is capable of delivering a maximum current of 8A and it is designed with a low quiescent current of 8.5 mA. It also features on resistance of 4.0 mΩ typ and a 50uV/°C typical output voltage temperature coefficient.

LT1640AHIN8#PBF is suitable for applications with input voltage ranging from 8.0V to 16V, hence, it can be used for various applications including telecom, network, industrial and medical devices. Additionally, it has thermal shutdown feature that protects the system from over-temperature conditions.

To sum up, LT1640AHIN8#PBF is a linear Hot Swap Controller capable of providing the desired control and protection while providing a high degree of system optimization. With its great features like voltage and current regulation mechanism, over-temperature and over-current protection, as well as its low quiescent current operation, the LT1640AHIN8#PBF Hot Swap Controller is the ideal component for high power application systems.