tl431aiydt-au STMicroelectronics, tl431aiydt-au Datasheet

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tl431aiydt-au

Manufacturer Part Number
tl431aiydt-au
Description
Programmable Voltage Reference
Manufacturer
STMicroelectronics
Datasheet
Features
Description
The TL431 is a programmable shunt voltage
reference with guaranteed temperature stability
over the entire operating temperature range.
The output voltage may be set to any value
between 2.5 V and 36 V with two external
resistors.
The TL431 operates with a wide current range
from 1 to 100 mA with a typical dynamic
impedance of 0.22 Ω.
March 2008
Adjustable output voltage: 2.5 to 36 V
Sink current capability: 1 to 100 mA
Typical output impedance: 0.22 Ω
1% and 2% voltage precision
Rev 5
Programmable voltage reference
(Batwing plastic micropackage)
(Plastic package)
TO-92
SO-8
Z
D
TL431
www.st.com
1/15
15

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tl431aiydt-au Summary of contents

Page 1

Features ■ Adjustable output voltage: 2 ■ Sink current capability 100 mA Typical output impedance: 0.22 Ω ■ ■ 1% and 2% voltage precision Description The TL431 is a programmable shunt voltage reference with guaranteed ...

Page 2

Schematic diagrams 1 Schematic diagrams Figure 1. TO-92 pin connections (top view) Figure 2. SO-8 batwing pin connections (top view) Figure 3. TL431 block diagram 2/15 Cathode Anode Reference ...

Page 3

TL431 2 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol V Cathode to anode voltage KA I Continuous cathode current range k I Reference input current range ref Power dissipation P TO-92 diss SO-8 batwing T ...

Page 4

Electrical characteristics 3 Electrical characteristics Table 25°C (unless otherwise specified) amb Symbol Parameter Reference input voltage mA, T ref KA ref k ≤ T ≤ min amb ...

Page 5

TL431 Table 25°C (unless otherwise specified) amb Symbol Parameter Reference input voltage mA, T ref KA ref k ≤ T ≤ min amb max Reference input voltage ...

Page 6

Electrical characteristics Figure 5. Test circuit for V Input REF Figure 7. Test circuit for I V =36V KA Figure 9. Test circuit for response time 6/ Figure 6. KA ...

Page 7

TL431 Figure 10. Reference voltage vs. temperature 2.54 2.52 2.50 2.48 2.46 2.44 -40 - Temperature ( ° C) Figure 12. Reference voltage vs. cathode current 2 = +25 ° AMB ...

Page 8

Electrical characteristics Figure 16. Static impedance R temperature 0.30 0.28 0.26 0.24 0.22 0.20 -40 - Temperature ( ° C) Figure 18. Gain and phase vs. frequency 60 Gain 40 Phase 20 0 -20 - 100 ...

Page 9

... JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics trademark. ECOPACK specifications are available at: www.st.com. Package information ...

Page 10

Package information 4.1 SO-8 package information Figure 22. SO-8 package mechanical drawing Table 5. SO-8 package mechanical data Ref ccc 10/15 Dimensions Millimeters Min. Typ. Max. 1.75 0.10 ...

Page 11

TL431 4.2 TO-92 ammopack and tape and reel package information Figure 23. TO-92 ammopack and tape and reel package mechanical drawing Table 6. TO-92 ammopack and tape and reel package mechanical data Dim ...

Page 12

Package information 4.3 TO-92 (bulk) package information Figure 24. TO-92 bulk package mechanical drawing Table 7. TO-92 bulk package mechanical data Dim 12/15 Millimeters Min Typ. Max. 1.27 3.2 3.7 4.2 4.45 5.00 ...

Page 13

... TL431IZT TL431IZ-AP -40° 105°C TL431AIZ TL431AIZT TL431AIZ-AP (1) TL431IYD (1) TL431IYDT (1) TL431AIYD (1) TL431AIYDT 1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent are on-going. Package range SO-8 TO-92 SO-8 TO-92 SO-8 (automotive grade level) Ordering information Packing Marking 431C ...

Page 14

Revision history 6 Revision history Table 9. Document revision history Date Revision 01-Mar-2002 1 01-Nov-2005 2 13-Dec-2006 3 08-Jun-2007 4 25-Feb-2008 5 14/15 Initial release. PPAP references inserted in order codes table on cover page. Corrected TO-92 package information. Specified ...

Page 15

... TL431 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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