TLV431AIDBZR

TLV431AIDBZR.pdf

Characteristics of TLV431A

Low voltage operation, VREF = 1.24 V

Adjustable output voltage, VO = VREF to 6V

25 ° C

TLV431B was 0.5% 

TLV431A was 1% 

TLV431 was 1.5% 

Typical temperature drift

4 MV (0 ° C to 70 ° C) 

6 MV (-40 ° C to 85 ° C) 

11 MV (-40 ° C to 125 ° C) 

Low operating cathode current, 80 ΜA (typical) 

0.25 ω typical output impedance

The ultra-small SC-70 package provides a package 40% smaller than the SOT-23-3 package

See TLVH431 and TLVH432:

Wider VKA (1.24 V to 18 V) and IK (80 Ma) 

Additional SOT-89 package

Multiple leads for SOT-23-3 and SOT-89 packages

On products conforming to MIL-PRF-38535,

all parameters are tested unless otherwise specified. For all other products, the production process does not necessarily include testing for all parameters.

Description of TLV431A

TLV431 is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. The output voltage can be set to any value between VREF (1.24v) and 6V using two external resistors (see the“Parameter measurement information” section) . These devices operate at a voltage (1.24 V) below the widely used TL431 and TL1431 parallel regulator reference.

TLV431 devices are ideal voltage references in isolated feedback circuits for 3V to 3.3 V switching mode power supplies when used with optocouplers. The typical output impedance of these devices is 0.25 ω. Active output circuits offer very sensitive on-off characteristics, making them an excellent alternative to low-voltage Zener diode in many applications, including on-board regulators and adjustable power supplies.

Application

• Adjustable voltage and current reference

• Secondary side regulation in flyback SMPS

 $cents Zinna replacement

• Voltage Monitoring

• Comparator with integrated reference