TL431QDBZR datasheet by Texas Instruments

TL431QDBZR Frequently Asked Questions (FAQs)

• What is the recommended operating temperature range for TL431QDBZR?
  The recommended operating temperature range for TL431QDBZR is -40°C to 125°C.
• How do I ensure stability when using TL431QDBZR in a voltage regulator circuit?
  To ensure stability, it's recommended to use a minimum output capacitance of 10uF and a minimum ESR of 0.1 ohms in the output capacitor.
• Can I use TL431QDBZR as a voltage reference in a high-temperature environment?
  Yes, TL431QDBZR is suitable for high-temperature environments, but it's essential to consider the temperature coefficient of the voltage reference, which is ±2mV/°C.
• What is the maximum allowed voltage on the cathode (K) pin of TL431QDBZR?
  The maximum allowed voltage on the cathode (K) pin is 36V, and exceeding this voltage may damage the device.
• How do I calculate the output voltage of TL431QDBZR in a voltage regulator circuit?
  The output voltage (Vout) can be calculated using the formula: Vout = Vref * (1 + R1/R2), where Vref is the reference voltage (2.5V), R1 is the resistor connected between the output and the adjust pin, and R2 is the resistor connected between the adjust pin and ground.