TL431BILPE3 datasheet by Texas Instruments

TL431BILPE3 Frequently Asked Questions (FAQs)

• What is the recommended operating temperature range for the TL431BILPE3?
  The recommended operating temperature range for the TL431BILPE3 is -40°C to 125°C. However, it's essential to note that the device's accuracy and stability may degrade at extreme temperatures.
• How do I ensure the TL431BILPE3 is stable and doesn't oscillate?
  To ensure stability, it's crucial to follow proper PCB layout practices, such as keeping the input and output capacitors close to the device, using a low-ESR capacitor for the output, and minimizing the length of the feedback loop. Additionally, a 1-10 nF capacitor between the REF and ADJ pins can help improve stability.
• What is the maximum output current that the TL431BILPE3 can handle?
  The TL431BILPE3 can handle a maximum output current of 100 mA. However, it's recommended to keep the output current below 50 mA to ensure the device operates within its specified parameters and to prevent overheating.
• Can I use the TL431BILPE3 as a voltage regulator for a high-current application?
  While the TL431BILPE3 can handle a maximum output current of 100 mA, it's not suitable for high-current applications. The device is designed for low-power, low-dropout voltage regulation and is not intended for high-current applications. For high-current applications, consider using a dedicated voltage regulator IC.
• How do I calculate the output voltage of the TL431BILPE3?
  The output voltage of the TL431BILPE3 can be calculated using the formula: Vout = Vref * (1 + R1/R2), where Vref is the internal reference voltage (2.495V), R1 is the resistance between the OUT and ADJ pins, and R2 is the resistance between the ADJ and GND pins.