The TLV431TFTA is a three terminal adjustable shunt regulator offering excellent temperature stability and output current handling capability up to 20mA. The output voltage may be set to any chosen voltage between 1.24 and 18 volts by selection of two external divider resistors. The TLV431TFTA can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance. The TLV431TFTA is available in 2 grades with initial tolerances of 1% and 0.5% for the A and B grades respectively.
Feature
- Low Voltage Operation ........... VREF = 1.24V
- Temperature range -40 to 125°C
- Reference Voltage Tolerance at 25°C
- 0.5%............TLV431B
- 1%...............TLV431A
- Typical temperature drift
- 4 mV (0°C to 70°C)
- 6 mV (-40°C to 85°C)
- 11mV (-40°C to 125°C)
- 80μA Minimum cathode current
- 0.25Ω typical Output Impedance
- Adjustable Output Voltage ..... VREF to 18V
Applications
- Opto-coupler linearisation
- Linear regulators
- Improved Zener
- Variable reference
