Instructions for Use:

1. Output Voltage Adjustment:

   • The TL431ACDBZR is a precision adjustable shunt regulator. The output voltage can be set using two external resistors, R1 and R2, connected between the REF, ANODE, and CATHODE pins.
   • The formula to calculate the output voltage (Vout) is: [ V_{text} = V_{text} left(1 + fracright) ]
   • Where ( V_{text} ) is the reference voltage (2.5V).

2. Cathode Current:

   • Ensure that the cathode current does not exceed 100mA to avoid damaging the device.

3. Anode-Cathode Voltage:

   • The maximum anode-cathode voltage should not exceed 37V.

4. Reference Input Current:

   • The reference input current (Iref) should be between 0.4μA and 1.0μA for optimal performance.

5. Output Impedance:

   • The output impedance is typically around 0.22Ω to 0.28Ω, which helps in maintaining a stable output voltage.

6. Power Dissipation:

   • The power dissipation should not exceed 1000mW. Proper heat sinking may be required for high power applications.

7. Operating Temperature:

   • The device is designed to operate within the temperature range of -40°C to 125°C.

8. Storage Temperature:

   • Store the device in an environment with temperatures ranging from -65°C to 150°C.

9. Handling Precautions:

   • Handle the device with care to avoid static discharge, which can damage the internal components.
   • Follow proper soldering techniques to ensure reliable connections and avoid thermal stress.

10. Mounting:

    • Mount the device on a PCB with appropriate spacing to allow for adequate heat dissipation.

By following these parameters and instructions, you can ensure the TL431ACDBZR operates reliably and efficiently in your application.