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PDF TS431 Data sheet ( Hoja de datos )
| Número de pieza | TS431 | |
| Descripción | LOW VOLTAGE ADJUSTABLE SHUNT REFERENCE | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TS431 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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® TS431
LOW VOLTAGE ADJUSTABLE SHUNT REFERENCE
. LOW VOLTAGE OPERATION : 1.24 TO 6V
. 2% and 1% VOLTAGE PRECISION
. WIDE RANGE CATHODE CURRENT : 25µA
TO 30mA
. LOW OUTPUT IMPEDANCE : 0.25W
. HIGH STABILITY WHILE OPERATING WITH
CAPACITIVE LOAD
. ESD PROTECTION :
. 5kV (Human Body Model)
200V (Machine Model)
OPTIMIZED FOR HIGH TEMPERATURES
Z
TO92
(Plastic Package)
DESCRIPTION
The TS431is a threeterminals programmableshunt
Voltage Referenceoptimized for hightemperatures.
However, it can operate from -40oC up to +125oC.
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)
TO92
(Top view)
L
SOT23-5
ORDER CODES
Part
Number
TS431I
TS431AI
Temperature
Range
-40oC, +125oC
-40oC, +125oC
Package
ZL
••
••
SOT23
Marking
L272
L271
SOT23-5L
(Top view)
1 Cathod e
2 An o d e
3 Re fe re n c e
NC 1
Anode
5
NC * 2
Ca thode
3
R efer en ce
4
* Do not connect this pin or
conne ct it to ground
March 2000
1/8
1 page  
TS431
Off State cathode current vs temperature
50
40
Vka= 6Volts
30 Vref=0Volts
20
10
0
-50 -40 -30 -20 -10 0
10 20 30 40 50 60 70 80 90 100 110 120
Temperature (°C)
Test circuit for Off-state current measurement
Input
Vka=6V
Ioff
Ratio of change in Reference input voltage to change
in cathode voltage vs temperature
3
2
1
0
-1
-2
-3
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120
Temperature (°C)
Test circuit for Vka > Vref
Input
R1
R2
Iref
Vref
Vka
Ik
Vka = Vref . (1+R1/R2) + Iref .R1
Gain (dB)
70
60
50
40
30
20
10
0
10 30
Phase & Gain vs Frequency
Phase (°)
180
160
Gain
Phase
140
120
100
80
60
40
100
300
1,000 3,000
10,000 30,000 100,000
Frequency (Hz)
Test circuit for Phase & Gain measurements
6.8K
10µF
Input
4.3K
10µF
Output
Ik=100µA
Vref
5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet TS431.PDF ] | |
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