LTC4244IGN-1#PBF

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Power Management Integrated Circuits (PMICs) are used in a variety of applications in electronic devices. Hot swap controllers are one type of PMIC used to manage an electronic device’s power supply. One of these controllers is the LTC4244IGN-1#PBF, a dual N-channel MOSFET gate driver with hot swap and in-rush current limiting functionality. It is used to safely and efficiently provide power to active devices and protect passive components such as resistors, capacitors and inductors from current overloads during power-up. The LTC4244IGN-1#PBF is an IC with hot swap and in-rush current limiting functions. The device utilizes a dual N-channel MOSFET gate driver and integrated X2Y capacitors to isolate and control the MOSFET. The driver includes a level-shift circuit that is used to ensure the MOSFETs are turned on and off synchronously, as well as a logic interface featuring an active low enable input, a two-level fault condition indicator, and two active-low power good (PG) outputs. The MOSFETs are individually controlled with two separate inputs for each MOSFET, allowing for a wide variety of power-up, power-off, and fault scenarios.The LTC4244IGN-1#PBF can be used in a wide variety of applications, including but not limited to server and storage equipment, solar and wind turbine systems, plug-in hybrid and electric vehicles, telecommunications, industrial control systems, and process control devices. The device is available in a 10-pin, 6 x 6 mm package, and can operate over a temperature range of –40°C to 125°C. The maximum operating voltage is 28 V, and the maximum operating current is 10 A.The LTC4244IGN-1#PBF is designed to provide hot swap and in-rush current limiting functionality to prevent current overloads during power-up of a system. The device uses a precision voltage regulator to generate a reference voltage, which is then used in a proportional integrator control loop to set the current limit. When the load current exceeds the current limit set by the device, the load current is automatically reduced to ensure that the current does not exceed the limit. In addition, the device also prevents short circuit currents from damaging the system in the event of a short circuit.The LTC4244IGN-1#PBF also features a Fault Detection Module (FDM). The FDM continuously monitors the load current to enable early detection of fault conditions. When the load current exceeds the trip level, the FDM will detect a fault condition and latch the involved MOSFET gate off to prevent excessive current damage. The device also includes a power-on reset circuit, which prevents the system from turning on before it is properly configured.The LTC4244IGN-1#PBF is an ideal solution for applications that require efficient and reliable control of power supply during power-up, standby operations as well as in-rush current limiting and fault detection. With its integrated components, it offers a compact and cost effective solution for controlling the power in a system. With its versatile functionality, the LTC4244IGN-1#PBF is a perfect choice for any application that requires hot swap and in-rush current limiting functionality.

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