Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general high-frequency layout guidelines, such as keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the device.
The input capacitor should be chosen based on the input voltage range, ripple current, and ESR requirements. A general rule of thumb is to choose a capacitor with a capacitance value of at least 10uF and a voltage rating of at least 1.5 times the maximum input voltage. Additionally, the capacitor's ESR should be less than 1 ohm to ensure low impedance at high frequencies.
The TPS2359RHHT is a high-current hot-swap controller, and its maximum output current is dependent on the external FET and sense resistor used. However, the device itself can handle up to 70A of output current. It's essential to carefully select the external components to ensure that they can handle the required output current.
The TPS2359RHHT has a built-in overcurrent protection feature that can be enabled by connecting the OC pin to the sense resistor. The device will then monitor the current and shut down the output if the current exceeds the programmed threshold. The threshold can be set by adjusting the sense resistor value and the OC pin voltage.
Yes, the TPS2359RHHT can be used in a redundant power supply configuration. The device has a built-in ORing function that allows multiple devices to be connected in parallel, providing redundancy and fault tolerance. This feature can be enabled by connecting the OR pin to the output of each device.
TPS2359RHHT datasheet
by Texas Instruments
