Data Sheet
TL431 family All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 5 — 01 September 2015 12 of 27
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
I
K
=10mA; R1=10k; R2 = open I
K
=10mA; T
amb
=25C
Fig 6. Reference current as a function of ambient
temperature; typical values
Fig 7. Reference voltage variation as a function of
cathode-anode voltage; typical values
Fig 8. Test circuit to Figure 6
and Figure 7
T
amb
(°C)
−75 12575−25 25
006aab574
2.0
3.0
1.0
4.0
5.0
I
ref
(μA)
0.0
V
KA
(V)
0403010 20
006aab575
−40
−20
0
ΔV
ref
(mV)
−60
006aab576
GND
V
ref
V
KA
INPUT
I
K
I
ref
R1
R2
V
KA
V
ref
1
R1
R2
-------
+
I
ref
R1+=