TPS2552DBVR datasheet by Texas Instruments

TPS2552DBVR Frequently Asked Questions (FAQs)

• What is the maximum current rating of the TPS2552DBVR?
  The maximum current rating of the TPS2552DBVR is 2.5A, but it can be limited by the thermal performance of the PCB and the ambient temperature.
• How do I ensure the TPS2552DBVR is properly thermally managed?
  To ensure proper thermal management, ensure a good thermal connection between the device and the PCB, use a thermal pad or thermal tape, and consider using a heat sink or a thermal interface material.
• What is the purpose of the EN pin, and how do I use it?
  The EN (enable) pin is used to turn the device on or off. To use it, connect the EN pin to a logic-level signal (e.g., from a microcontroller) to enable or disable the device. A logic high (>2.4V) enables the device, while a logic low (<0.8V) disables it.
• How do I choose the right sense resistor value for my application?
  Choose a sense resistor value that provides a voltage drop of 50-100mV at the maximum expected current. A higher sense resistor value can improve accuracy but increases power loss, while a lower value reduces power loss but may compromise accuracy.
• What is the purpose of the FLT pin, and how do I use it?
  The FLT (fault) pin is an open-drain output that indicates an overcurrent or overtemperature fault. Connect a pull-up resistor to a voltage rail, and monitor the FLT pin to detect faults. The FLT pin is active low, meaning it is pulled low during a fault condition.