TPS26602RHFT

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PMIC - Hot Swap Controllers are power management components that monitor and control inverter, charger and power supply designs. The TPS26602RHFT application field and working principle is a voltage-based, adjustable-current controller for hot swap applications, in which the current to a load must be safely ramped up or down when the system voltage is either rising or falling. The following information will discuss the application field and working principle.

Application Field

The TPS26602RHFT Hot Swap controller is designed for use in single- or dual-channel, up to 120V loads. In addition to providing a precisely regulated current setting, it has additional features such as an adjustable ramp rate and output current limit, over temperature protection and soft start. This makes it suitable for a wide range of applications such as server or storage racks and base-station cabinets, set-top boxes, and telecommunications equipment with up to 48V output voltages. It can also be used for implementing Hot Swapping in Arduino-based robotic project.

Working Principle

The TPS26602RHFT Hot Swap controller provides adjustable current and voltage regulation for voltage output loads. It includes a reference amplifier, a level shifter, and a current sensing amplifier to measure the output current. The reference amplifier is used to ensure accurate current regulation and the level shifter is used to ensure proper biasing. The current sensing amplifier is used to measure the output current, to ensure that the current is controlled to the desired setting.

When the system voltage is rising or falling, the current to the load is ramped up or down. The TPS26602RHFT Hot Swap controller allows the ramp rate to be set so that it is optimized for the application. It has a slew rate of up to 10V/μs, allowing it to respond quickly to changes in system voltage.

In addition to providing current and voltage regulation, the controller implements soft start, over temperature protection and current limit features. When the system voltage rises, the controller will ramp up the current, but will not allow it to exceed the preset current limit. If the system temperature rises above a certain threshold, the controller will reduce the current to prevent damage to the load.

The TPS26602RHFT Hot Swap controller is a voltage-based, adjustable-current controller with a number of features that make it suitable for a wide range of applications. The adjustable current and ramp rate make it ideal for quickly ramping up or down the current to a load, while the over temperature protection and current limit keep the load from being damaged.

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