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PDF ( 数据手册 , 数据表 ) TL432

零件编号 TL432
描述 PROGRAMMABLE VOLTAGE REFERENCE
制造商 STMicroelectronics
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TL432 数据手册, 描述, 功能
TL431
TL432
Programmable voltage reference
Features
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
Automotive temp. range - 40 °C to +125 °C
Applications
Power supply
Industrial
Automotive
Description
The TL431 and TL432 are programmable shunt
voltage references with guaranteed temperature
stability over the entire operating temperature
range. The device temperature range is extended
for the automotive version from -40 °C up to
+125 °C. The output voltage can be set to any
value between 2.5 and 36 V with two external
resistors. The TL431 and TL432 operate with a
wide current range from 1 to 100 mA with a typical
dynamic impedance of 0.22 Ω.
Datasheet production data
Z
TO-92
(Plastic package)
L
SOT23-3
L
SOT23-5
C
SOT323-6
D
SO-8
(Batwing plastic micropackage)
December 2012
This is information on a product in full production.
Doc ID 4467 Rev 11
1/21
www.st.com
21







TL432 pdf, 数据表
Electrical characteristics
TL431, TL432
Figure 7. Test circuit for VKA = Vref
Input
R
IK=10mA
Figure 8.
Input
Test circuit for programming mode
R Output
Output
R1
IREF
IK
VKA
VREF
VKA
R2 VREF
( )VKA = VREF
1 + R-----1-
R2
+ R1 x IREF
Figure 9. Test circuit for Ioff
VKA=36V
IOFF
Figure 10. Test circuit for phase margin and
voltage gain
10μF
10μF
IK=10mA
Input
VREF
Figure 11. Test circuit for response time
1 mA
0 mA
IK=1mA
Figure 12. Reference voltage vs. temperature
2.54
2.52
2.50
V =V
KA REF
I = 10 mA
K
2.48
2.46
2.44
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
8/21 Doc ID 4467 Rev 11







TL432 equivalent, schematic
Package mechanical data
4.5 SOT23-5 package information
Figure 28. SOT23-5 package mechanical drawing
TL431, TL432
Table 10. SOT23-5 package mechanical data
Dimensions
Ref. Millimeters
Min. Typ. Max. Min.
A 0.90
1.45 0.035
A1 0.15
A2 0.90
b 0.35
1.30 0.035
0.50 0.014
c 0.09
0.20 0.004
D 2.80
E 1.50
3.05 0.110
1.75 0.059
e 0.95
H 2.60
3.00 0.102
L 0.10
θ 0 degrees
0.60
10 degrees
0.004
7049676_I
Inches
Typ.
0.037
Max.
0.057
0.006
0.051
0.020
0.008
0.120
0.069
0.118
0.024
16/21
Doc ID 4467 Rev 11










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