TL431 Datasheet, PDF (4/23 Pages) Motorola, Inc – PROGRAMMABLE PRECISION REFERENCES

NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
8. Pinning information
Table 5. Pinning
Pin
Symbol Description
Simplified outline Graphic symbol
Normal pinning: All types except TL431AMSDT, TL431BMSDT and TL431MSDT
1
k
cathode
2
REF
reference
3
a
anode
3
REF
a
k
1
2
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Mirrored pinning: TL431AMSDT, TL431BMSDT and TL431MSDT
1
REF
reference
2
k
cathode
3
3
a
anode
1
2
REF
a
k
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9. Limiting values
Table 6. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
Min
Max
Unit
V_KA
cathode-anode voltage
I_K
cathode current
I_ref
reference current
P_tot
total power dissipation
T_amb ≤ 25 °C
-
37
V
−100
150
mA
−0.05 10
mA
[1] _-
350
mW
[2] _-
580
mW
[3] _-
950
mW
T_j
T_amb
junction temperature
ambient temperature
TL431XCDBZR
-
150
°C
0
+70
°C
TL431XIDBZR
−40
+85
°C
TL431XQDBZR
TL431XSDT
−40
+125
°C
T_stg
storage temperature
−65
+150
°C
[1] Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated and standard
footprint.
[2] Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 1 cm².
[3] Device mounted on a ceramic PCB, Al₂O₃, standard footprint.
TL431_FAM_2
Product data sheet
Rev. 02 — 20 January 2010
© NXP B.V. 2010. All rights reserved.
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