Datasheet
CATHODE
REF
ANODE
800 Ω
2.4 kΩ
4 kΩ
20 pF
1 kΩ
7.2 kΩ
800 Ω
800 Ω
150 Ω
10 kΩ
3.28 kΩ
20 pF
1
8
2, 3, 6, 7
TL1431
www.ti.com
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
EQUIVALENT SCHEMATIC
A. All component values are nominal.
B. Pin numbers shown are for the D package.
Absolute Maximum Ratings
(1)
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
V
KA
Cathode voltage
(2)
37 V
I
KA
Continuous cathode current range –100 150 mA
I
I(ref)
Reference input current range –0.05 10 mA
D package 97
θ
JA
Package thermal impedance
(3) (4)
LP package 140 °C/W
PW package 149
FK package 5.61
θ
JC
Package thermal impedance
(5) (6)
°C/W
JG package 14.5
T
J
Operating virtual junction temperature 150 °C
Lead temperature 1,6 mm (1/16 in) from case for 10 s 260 °C
T
stg
Storage temperature range –65 150 °C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to ANODE, unless otherwise noted.
(3) Maximum power dissipation is a function of T
J(max)
, θ
JA
, and T
A
. The maximum allowable power dissipation at any allowable ambient
temperature is P
D
= (T
J(max)
– T
A
)/θ
JA
. Operating at the absolute maximum T
J
of 150°C can affect reliability.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
(5) Maximum power dissipation is a function of T
J(max)
, θ
JC
, and T
C
. The maximum allowable power dissipation at any allowable case
temperature is P
D
= (T
J(max)
– T
C
)/θ
JC
. Operating at the absolute maximum T
J
of 150°C can affect reliability.
(6) The package thermal impedance is calculated in accordance with MIL-STD-883.
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