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PDF TS2431 Data sheet ( Hoja de datos )
| Número de pieza | TS2431 | |
| Descripción | PROGRAMMABLE SHUNT VOLTAGE REFERENCE | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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TS2431
PROGRAMMABLE SHUNT VOLTAGE REFERENCE
s ADJUSTABLE OUTPUT VOLTAGE
2.5 to 24V
s SEVERAL PRECISION @ 25°C
±2%, ±1% and ±0.5%
s SINK CURRENT CAPABILITY
1 to 100mA
s INDUSTRIAL TEMPERATURE RANGE:
-40 to +105°C
s PERFORMANCES COMPATIBLE WITH
INDUSTRY STANDARD TL431
DESCRIPTION
The TS2431 is a programmable shunt voltage
reference with guaranteed temperature stability
over the entire temperature range of operation
(-40 to +105°C). The output voltage may be set to
any value between 2.5V 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.
APPLICATION
s Computers
s Instrumentation
s Battery chargers
s Switch Mode Power Supply
s Battery operated equipments
ORDER CODE
Precision
Part Number
in SOT23-3
2% TS2431ILT
1% TS2431AILT
0.5%
TS2431BILT
Single temperature range: -40 to +105°C
SOT23
Marking
L285
L286
L287
LT = Tiny Package (SOT23-3) - only available in Tape & Reel (LT)
L
SOT23-3L
(Plastic Micropackage)
PIN CONNECTIONS (top view)
Cathode
1
Reference 2
3 Anode
SOT23-3
February 2002
1/6
1 page  
Pulse response at Ik=1mA
6
Input voltage
4
Output voltage
2
Ik= 0 to 1mA
T=25°C
0
0.0 0.5 1.0 1.5 2.0
Time (µs)
Pulse response at Ik = 1mA
6
Input voltage
4
Ik= 1mA to 0
T=25°C
2 Output voltage
0
0.0 0.5 1.0 1.5 2.0
Time (µs)
Stability boundary conditions
100
80
Stable
area
60
Vka=3 V
40
20 Vka=2.5 V
0
1E-10
1E-9
Instable
area
1E-8
1E-7
Capacitive load (F)
Vka=5 V
1E-6
1E-5
TS2431
Test circuit for pulse response at Ik = 1mA
Pulse
Generator
F=100kHz
0 to 5V
2.5 KΩ
Ik=1mA
Equivalent input noise vs frequency
300
250
200
150
100
50
0
0.1
Vka=Vref
Ik=1mA
T=25°C
1 10 100
Frequency (KHz)
1000
Block Diagram
5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet TS2431.PDF ] | |
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