This article will introduce kind of shunt regulator TLV431, from four angles: description, application, alternatives, manufacturer and FAQ.
Description: TLV431 is a shunt regulator, which is adjustable and 3-terminal. It belongs to reference voltage source, with different suffixes, It can be classified as: low-voltage precision adjustable reference source (output voltage 1.24^16V), programmable precision reference source (output voltage 2.49^36V), and low-voltage adjustable precision shunt regulator (output voltage 1.24) ~6V).
Where to use:
1.Isolated low-output voltage power supplies
2.Improve the accuracy and/or extend the range and flexibility of fixed-voltage regulators.
Alternatives:
1.TLV431CDBVTG4
2.TLV431CDBVRE4
Manufacturer:
Diodes Incorporated is the world's leading manufacturer and supplier, providing high-quality dedicated standard products for a wide range of discrete, logic, analog and mixed-signal semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial and automotive markets.
FAQ:
1.What is the difference between TLV431 and TL431?
The TLV431 is a lower voltage reference option of the TLV but also has some different specifications.
The TL431 is the original standard shunt voltage reference.
2.What is the difference between LMV431 and TLV431?
LMV431 is a device developed by the previous National Semiconductor team and is functionally equivalent to TLV431, although LMV431 has higher high voltage tolerance at the cathode. The same is true for LM431 and TL431, they are direct functional equivalents.
3.As circuit breakers are used for over current protection, which device is used for over voltage protection?
Transient suppressor is good for ESD protection. Use clamping diodes for signal overvoltage protection. Use comparators, reference generators and latch circuits to design overvoltage protection circuits. I designed an overvoltage protection circuit using TLV431.
