TS431AI STMicroelectronics, TS431AI Datasheet

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TS431AI

Manufacturer Part Number
TS431AI
Description
LOW VOLTAGE ADJUSTABLE SHUNT REFERENCE
Manufacturer
STMicroelectronics
Datasheet

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DESCRIPTION
The TS431is a threeterminals programmableshunt
Voltage Referenceoptimized for hightemperatures.
However, it can operate from -40
The output voltage is set by two external resistors to
any value between 1.24 and 6V. When driving an
optocoupler, the TS431 is particularly interesting to
regulate 3.3V switching power supplies.
PIN CONNECTIONS (top view)
March 2000
LOW VOLTAGE OPERATION : 1.24 TO 6V
2% and 1% VOLTAGE PRECISION
WIDE RANGE CATHODE CURRENT : 25 A
TO 30mA
LOW OUTPUT IMPEDANCE : 0.25W
HIGH STABILITY WHILE OPERATING WITH
CAPACITIVE LOAD
ESD PROTECTION :
OPTIMIZED FOR HIGH TEMPERATURES
5kV (Human Body Model)
200V (Machine Model)
LOW VOLTAGE ADJUSTABLE SHUNT REFERENCE
(Top view)
TO92
3
1
2
o
C up to +125
Ca th o d e
An o d e
Re fe re n c e
o
C.
ORDER CODES
TS431I
TS431AI
Number
Part
Ca thode
NC *
NC
-40
-40
Temperature
2
1
3
o
o
C, +125
C, +125
Range
(Plastic Package)
* Do not connect this pin or
conne ct it to ground
SOT23-5L
(Top view)
SOT23-5
TO92
o
o
C
C
Z
L
Package
Z
5
4
L
TS431
Anode
Reference
Marking
SOT23
L272
L271
1/8

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TS431AI Summary of contents

Page 1

... March 2000 Z TO92 (Plastic Package) L SOT23-5 ORDER CODES o C. Part Temperature Number Range o o TS431I -40 C, +125 TS431AI -40 C, +125 C SOT23-5L (Top view thode not connect this pin or conne ground TS431 Package SOT23 Marking Z L L272 ...

Page 2

TS431 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Cathode to Anode Voltage KA I Continuous Cathode Current Range K I Reference Input Current Range ref P Power dissipation, TO92 package @ T d Power dissipation, SO23-5 package @ T T Operating ...

Page 3

TS431A ELECTRICAL CHARACTERISTICS T Symbol Parameter V Output Voltage ref 100 A KA ref k V Output Voltage Change - note 1 ref I 100 ref V ...

Page 4

TS431 Reference voltage vs Temperature 1,29 1,28 1,27 1,26 1,25 1,24 1,23 1,22 1,21 1,2 1,19 -40 -30 -20 - 100 110 120 Temperature ( C) Cathode current vs Cathode ...

Page 5

Off State cathode current vs temperature 50 40 Vka= 6Volts 30 Vref=0Volts -50 -40 -30 -20 - Temperature ( C) Ratio of change in Reference input voltage to ...

Page 6

TS431 Pulse response for Ik=100 A 3,5 Input 3 2,5 2 1,5 Output 1 0 Time s Pulse response for Ik=1mA 3,5 Input 3 2,5 2 1,5 Output 1 0,5 0 -0,5 ...

Page 7

PACKAGE MECHANICAL DATA SOT23-5L D Dimensions Min 0.90 b 0.35 C 0.09 D 2.80 E 2.60 E1 1. Millimeters Max. Min. 1.45 0.035 0.15 1.30 0.035 ...

Page 8

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifi- cations mentioned in this publication are subject to change without notice. This publication supersedes and replaces all infor- mation previously supplied ...

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