TPS2358RGZR datasheet by Texas Instruments

TPS2358RGZR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Texas Instruments provides a recommended PCB layout in the datasheet (Figure 23) and in the application note SLVA883. It's essential to follow these guidelines to minimize noise, ensure proper thermal dissipation, and optimize performance.
• How do I choose the correct sense resistor value for my application?
  The sense resistor value depends on the desired current limit and the voltage drop across the sense resistor. TI provides a formula in the datasheet (Equation 1) to calculate the sense resistor value. Additionally, the application note SLVA883 provides guidance on selecting the optimal sense resistor value.
• What is the purpose of the EN pin, and how do I use it?
  The EN (Enable) pin is used to enable or disable the hot swap controller. When EN is high, the device is enabled, and when EN is low, the device is disabled. This pin can be used to implement power sequencing or to turn off the device during shutdown or low-power modes.
• How do I handle inrush current during hot plug events?
  The TPS2358RGZR has a built-in inrush current limiter that helps to limit the inrush current during hot plug events. However, it's still important to consider the inrush current requirements of the downstream devices and design the system accordingly. TI provides guidance on inrush current limiting in the application note SLVA883.
• What is the maximum operating temperature range for the TPS2358RGZR?
  The TPS2358RGZR has an operating temperature range of -40°C to 125°C. However, the device's performance and reliability may be affected at extreme temperatures. It's essential to consider the thermal design and ensure proper heat dissipation to maintain optimal performance.