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TL431BILPE3 数据表(PDF) 18 Page - Texas Instruments

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部件名 TL431BILPE3
功能描述  TL431, TL432 Precision Programmable Reference
PDF  83 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TL431BILPE3 数据表(HTML) 18 Page - Texas Instruments

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Typical Characteristics
Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the
various devices.
50
40
10
0
0.001
0.01
0.1
1
70
90
100
10
30
80
60
20
TA = 25°C
B
Stable
Stable
A V KA = Vref
B VKA = 5 V
C VKA = 10 V
D VKA = 15 Vf
CL − Load Capacitance − µF
A
C
D
The areas under the curves represent conditions that may
cause the device to oscillate. For curves B, C, and D, R2 and
V+ are adjusted to establish the initial VKA and IKA conditions,
with CL = 0. VBATT and CL then are adjusted to determine the
ranges of stability.
Figure 7-16. Stability Boundary Conditions for All TL431 and
TL431A Devices (Except for SOT23-3, SC-70, and Q-Temp
Devices)
150 Ω
IKA
R1 = 10 kΩ
R2
CL
VBATT
IKA
CL
VBATT
150 Ω
TEST CIRCUIT FOR CURVE A
TEST CIRCUIT FOR CURVES B, C, AND D
+
−
+
−
Figure 7-17. Test Circuits for Stability Boundary Conditions
50
40
10
0
0.001
0.01
0.1
1
70
90
100
10
30
80
60
20
Stable
A VKA = Vref
B VKA = 5 V
C VKA = 10 V
D VKA = 15 Vf
CL − Load Capacitance − µF
A
C
D
B
A
TA = 25°C
Stable
B
The areas under the curves represent conditions that may
cause the device to oscillate. For curves B, C, and D, R2 and
V+ are adjusted to establish the initial VKA and IKA conditions,
with CL = 0. VBATT and CL then are adjusted to determine the
ranges of stability.
Figure 7-18. Stability Boundary Conditions for All TL431B,
TL432, SOT-23, SC-70, and Q-Temp Devices
150 Ω
IKA
R1 = 10 kΩ
R2
CL
VBATT
IKA
CL
VBATT
150 Ω
TEST CIRCUIT FOR CURVE A
TEST CIRCUIT FOR CURVES B, C, AND D
+
−
+
−
Figure 7-19. Test Circuit for Stability Boundary Conditions
TL431, TL432
SLVS543Q – AUGUST 2004 – REVISED JULY 2022
www.ti.com
18
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL431 TL432



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