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PDF TS3431ILT Data sheet ( Hoja de datos )
| Número de pieza | TS3431ILT | |
| Descripción | 1.24V Programmable Shunt Voltage Reference | |
| Fabricantes | STMicroelectronics | |
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TS3431
1.24V Programmable Shunt Voltage Reference
■ Adjustable output voltage: 1.24 to 24V
■ Several precision @ 25°C
±2%, ±1%, ±0.5% and ±0.25%
■ Sink current capability: 0.4 to 100mA
■ Industrial temperature range: -40 to +125°C
■ Performances compatible with industry
standard TL431
Description
The TS3431 is a programmable shunt voltage
reference with guaranteed temperature stability
over the entire temperature range of operation
(-40 to +125°C). The output voltage may be set to
any value between 1.24V and 24V with an
external resistor bridge.
Available in SOT23-3 surface mount package, it
can be designed in applications where space
saving is a critical issue.
Applications
■ Computers
■ Instrumentation
■ Battery chargers
■ Switch mode power supply
■ Battery operated equipments
L
SOT23-3L
(Plastic Micropackage)
Z
TO-92
(Plastic Package)
Pin Connections (top view)
TO-92
(top view)
SOT23-3
(top view)
Reference 1
Cathode 2
3 Anode
Order Codes
Part Number
TS3431ILT/AILT/BILT/CILT
TS3431IZ/AIZ/BIZ/CIZ
TS3431IZT/AIZT/BIZT/CIZT
TS3431IZ-AP/AIZ-AP/BIZ-AP/CIZ-AP
Temperature Range
-40, +125°C
Package
SOT23-3L
TO-92
Packaging
Tape & Reel
Bulk
Tape & Reel
Ammo pack
Marking
L280-L281
L282-L283
December 2004
Revision 2
1/11
1 page  
Electrical Characteristics
Figure 7. Off-State current vs temperature
300
200
100
TS3431
Figure 10. Test circuit for off-state current
measurement
Vka=24V
Ioff
0
-40 0 40 80 120
Temperature (°C)
Figure 8. Ratio of change in reference input
voltage to change in Vka voltage vs
temperature
Figure 11. Test circuit for VK > VREF
2.0
1.5
1.0
0.5
0.0
-40
∆V = 1.24 to 24V
K
I = 10 mA
K
0 40 80
Temperature (°C)
120
Input
R1
Iref
R2 Vref
Ik
Vka
Vka = Vref . (1+R1/R2) + Iref . R1
Figure 9. Phase and gain vs frequency
80
40
0
40
20
0
1000
T = +25°C
10000
100000
Frequency (Hz)
1000000
Figure 12. Test circuit for phase and gain
measurement
10 µF
10 µF
5/11
5 Page 
Revision History
4 Revision History
Date
01 Jan. 2004
Revision
1
01 Dec. 2004
2
TS3431
Description of Changes
First Release
Specific content changes as follows:
• CI version added in Table: Order Codes on page 1
• Rthjc information added in Table1: Key parameters and their absolute
maximum ratings on page 2
• Test condition added in Table3: Tamb = 25°C (unless otherwise
specified) on page 3
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners
© 2004 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
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Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
11/11
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet TS3431ILT.PDF ] | |
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