TPS2034DG4 datasheet by Texas Instruments

TPS2034DG4 Frequently Asked Questions (FAQs)

• What is the maximum current limit for the TPS2034DG4?
  The maximum current limit for the TPS2034DG4 is typically 1.5A, but it can be adjusted using an external resistor (RSENSE) to a maximum of 2.5A.
• How do I calculate the sense resistor value for current limiting?
  The sense resistor value can be calculated using the formula: RSENSE = 0.05V / ISENSE, where ISENSE is the desired current limit.
• 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. It is an active-high input, meaning that the device is enabled when EN is high and disabled when EN is low. Connect EN to a logic high (e.g., VCC) to enable the device, or connect it to a logic low (e.g., GND) to disable it.
• How do I handle thermal shutdown and overcurrent protection?
  The TPS2034DG4 has built-in thermal shutdown and overcurrent protection. If the device overheats or detects an overcurrent condition, it will shut down and latch off until the fault is removed. To handle these events, you can use the FLAG pin, which goes low during a fault condition, to alert your system to take corrective action.
• What is the recommended layout and PCB design for the TPS2034DG4?
  For optimal performance, it is recommended to follow a star-grounding layout, with the input and output capacitors placed close to the device. The sense resistor should be placed close to the device and connected to the VIN pin. Additionally, ensure that the PCB traces are wide enough to handle the maximum current and that the device is properly decoupled from the power supply.