TPS259520DSGR

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TPS259520DSGR Application Field and Working Principle

Power Management IC (PMIC) - Hot Swap Controllers are circuits designed to handle the instantaneous power levels required for the smooth operation of otherwise sensitive electronics products. Hot swap controllers are generally used to provide a robust power flow from a power source to a load, commonly the power delivery network of complex integrated systems.

TPS259520DSGR is a power management IC designed for hot swap applications. It has a wide operating temperature range from -40°C to +85°C and is available in space-saving 8 Ld VSSOP and 8 Ld WSON packages. It supports a wide input voltage range of 4.5V-32V and low quiescent current of less than 8µA.

Application Field

TSP259520DSGR can be used in a variety of applications including, inter alia, road assistance systems, automotive environment sensing equipment, industrial automation, cellular base stations, and access controllers. Its features also make it suitable for fire/gas and burglar alarm systems, automotive HVAC controllers, industrial process controllers, handheld equipment, and general communications.

Working Principle

TPS259520DSGR provides an efficient control solution for hot swap applications. The device supplies an output current up to 8A and supports either a passive or active flyback power architecture. It is designed to monitor and control the inrush current when an attached device is powered up. It limits the current supplied to the input bus and also provides an output current detection to ensure proper current regulation.

The hot swap controller comes with an integrated power-up circuit that is designed to supply an adjustable voltage to the device input node in order to provide a controlled power-on sequence. It also provides a temperature sensing circuit to detect device temperature under overload conditions. In addition, it has an adjustable hysteresis circuit to adjust the output voltage.

The hot swap controller features a soft-start feature that can be used to reduce inrush current. It also provides a Pull-Off feature to disconnect the load from the input bus if the output current detected is above a predetermined level. This feature can protect from over-current conditions that may otherwise damage the circuit board or the attached device.

Additionally, it offers an open-drain status output to indicate the output current status, over-temperature, and over-voltage conditions. This provides diagnostic feedback to the system, enabling it to take corrective action before serious damage occurs.

TPS259520DSGR is a device specifically designed to provide efficient power flow control in hot swap applications. Its features and capabilities make it an ideal solution for a wide range of applications.

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