TL431
PROGRAMMABLE PRECISION REFERENCES
The TL431 is three-terminal adjustable shunt regulator
with specified termal stability.
The output voltage may be set to any value between
V
REF
(Approx. 2.5V) and 36V with two external resistors.
This device has a typical output inpedance of 0.2Ω.
Active output circuitry provides a very sharp turn-on
characteristic, making this device excellent
replacement for zener diodes in many application.
SOT-23
TO-92 (TOP VIEW)
1.
SOT-89
FEATURES
● Equivalent Full Range Temperature Coefficient 50PPM/℃
● Temperature Compensated For Operation Over
Full Rate Operating Temperature Range
● Adjustable Output Voltage
● Fast Turn-on Response
● Sink Current Capability 1㎃ to 100㎃
● Low (0.2Ω Typ.) Dynamic Output Impedance
● Low Output Noise
1
3.
1.
1. REF 2. ANODE 3. CATHODE
FUNCTION BLOCK DIAGRAM
BLOCK DIAGRAM
REFERENCE
CATHODE
CATHODE(K)
2.5V
REF
REFERENCE(R)
ANODE(A)
ANODE
１
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