TLV431ACLPR datasheet by Texas Instruments

TLV431ACLPR Frequently Asked Questions (FAQs)

• What is the recommended operating temperature range for TLV431ACLPR?
  The recommended operating temperature range for TLV431ACLPR is -40°C to 125°C. While the device can operate up to 150°C, the recommended range ensures optimal performance and reliability.
• How do I ensure stability when using TLV431ACLPR as a voltage reference?
  To ensure stability, it's essential to decouple the input pin (VREF) with a 10nF to 100nF capacitor to ground, and also use a 1kΩ to 10kΩ resistor in series with the output pin (VOUT) to the load. This helps to filter out noise and prevent oscillations.
• Can I use TLV431ACLPR as a voltage regulator?
  While TLV431ACLPR can be used as a voltage regulator, it's not recommended. The device is designed as a voltage reference, and its output current capability is limited to 10mA. Using it as a voltage regulator may lead to instability and reduced performance.
• How does TLV431ACLPR behave during power-up and power-down sequences?
  During power-up, the TLV431ACLPR output voltage (VOUT) follows the input voltage (VIN) until the internal circuitry is enabled, at which point VOUT settles to the nominal 1.24V value. During power-down, VOUT decays slowly to 0V. It's essential to ensure that the input voltage ramps up and down slowly to prevent any voltage spikes or oscillations.
• Is TLV431ACLPR susceptible to latch-up?
  Yes, TLV431ACLPR is susceptible to latch-up if the input voltage (VIN) exceeds the maximum rating of 7V. To prevent latch-up, ensure that VIN never exceeds 7V, and use a voltage limiter or clamp circuit if necessary.