TLV431A_16 [ONSEMI]
Low Voltage Precision Adjustable Shunt Regulator;![TLV431A_16](http://pdffile.icpdf.com/pdf2/p00333/img/icpdf/TLV431A-16_2045456_icpdf.jpg)
型号: | TLV431A_16 |
厂家: | ![]() |
描述: | Low Voltage Precision Adjustable Shunt Regulator |
文件: | 总17页 (文件大小:167K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
TLV431A, TLV431B,
TLV431C, SCV431B, NCV431
Low Voltage Precision
Adjustable Shunt Regulator
The TLV431A, B and C series are precision low voltage shunt
regulators that are programmable over a wide voltage range of 1.24 V to
16 V. The TLV431A series features a guaranteed reference accuracy of
1.0% at 25°C and 2.0% over the entire industrial temperature range of
−40°C to 85°C. The TLV431B series features higher reference accuracy
of 0.5% and 1.0% respectively. For the TLV431C series, the accuracy
is even higher. It is 0.2% and 1.0% respectively. These devices exhibit
a sharp low current turn−on characteristic with a low dynamic impedance
of 0.20 W over an operating current range of 100 mA to 20 mA. This
combination of features makes this series an excellent replacement for
zener diodes in numerous applications circuits that require a precise
reference voltage. When combined with an optocoupler, the
TLV431A/B/C can be used as an error amplifier for controlling the
feedback loop in isolated low output voltage (3.0 V to 3.3 V) switching
power supplies. These devices are available in economical TO−92−3 and
micro size TSOP−5 and SOT−23−3 packages.
www.onsemi.com
TO−92
LP SUFFIX
CASE 29
1
1
2
2
3
3
STRAIGHT LEAD
BULK PACK
BENT LEAD
TAPE & REEL
AMMO PACK
4
5
TSOP−5
SN SUFFIX
CASE 483
3
Features
2
3
1
• Programmable Output Voltage Range of 1.24 V to 16 V
• Voltage Reference Tolerance 1.0% for A Series, 0.5% for B Series
and 0.2% for C Series
SOT−23−3
SN1 SUFFIX
CASE 318
• Sharp Low Current Turn−On Characteristic
• Low Dynamic Output Impedance of 0.20 W from 100 mA to 20 mA
1
2
• Wide Operating Current Range of 50 mA to 20 mA
• Micro Miniature TSOP−5, SOT−23−3 and TO−92−3 Packages
• These are Pb−Free and Halide−Free Devices
• SCV and NCV Prefix for Automotive and Other Applications
Requiring Unique Site and Control Change Requirements;
AEC−Q100 Qualified and PPAP Capable
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
Applications
DEVICE MARKING INFORMATION
AND PIN CONNECTIONS
See general marking information in the device marking
section on page 13 of this data sheet.
• Low Output Voltage (3.0 V to 3.3 V) Switching Power Supply
Error Amplifier
• Adjustable Voltage or Current Linear and Switching Power Supplies
• Voltage Monitoring
• Current Source and Sink Circuits
• Analog and Digital Circuits Requiring Precision References
• Low Voltage Zener Diode Replacements
Cathode (K)
Reference (R)
+
-
1.24 V
ref
Anode (A)
Figure 1. Representative Block Diagram
© Semiconductor Components Industries, LLC, 2016
1
Publication Order Number:
February, 2016 − Rev. 21
TLV431A/D
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
Cathode (K)
Reference (R)
Cathode (K)
Reference (R)
Anode (A)
Device Symbol
Anode (A)
The device contains 13 active transistors.
Figure 2. Representative Device Symbol and Schematic Diagram
MAXIMUM RATINGS (Full operating ambient temperature range applies, unless otherwise noted)
Rating Symbol
Value
18
Unit
V
Cathode to Anode Voltage
V
KA
Cathode Current Range, Continuous
I
−20 to 25
*0.05 to 10
mA
mA
°C/W
K
Reference Input Current Range, Continuous
I
ref
Thermal Characteristics
LP Suffix Package, TO−92−3 Package
Thermal Resistance, Junction−to−Ambient
Thermal Resistance, Junction−to−Case
SN Suffix Package, TSOP−5 Package
Thermal Resistance, Junction−to−Ambient
SN1 Suffix Package, SOT−23−3 Package
Thermal Resistance, Junction−to−Ambient
R
R
178
83
q
JA
JC
q
226
R
R
q
JA
491
150
q
JA
J
Operating Junction Temperature
T
T
°C
°C
Operating Ambient Temperature Range
TLV431x
*40 to 85
A
NCV431, SCV431B
*40 to 125
Storage Temperature Range
T
stg
*65 to 150
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
NOTE: This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per JEDEC JESD22−A114F, Machine Model Method 200 V per JEDEC JESD22−A115C,
Charged Device Method 1000 V per JEDEC JESD22−C101E. This device contains latch−up protection and exceeds 100 mA per
JEDEC standard JESD78.
T
* T
J(max)
R
A
P
+
D
qJA
RECOMMENDED OPERATING CONDITIONS
Condition
Symbol
Min
Max
16
Unit
V
Cathode to Anode Voltage
Cathode Current
V
KA
V
ref
I
K
0.1
20
mA
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
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2
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
ELECTRICAL CHARACTERISTICS (T = 25°C unless otherwise noted)
A
TLV431A
Typ
TLV431B
Typ Max
Min
Max
Min
Characteristic
Reference Voltage (Figure 3)
Symbol
Unit
V
ref
V
1.228 1.240 1.252 1.234 1.240 1.246
(V = V , I = 10 mA, T = 25°C)
KA
ref
K
A
1.215
−
1.265 1.228
−
1.252
(T = T
to T , Note 1)
high
A
low
Reference Input Voltage Deviation Over Temperature (Figure 3)
(V = V , I = 10 mA, T = T to T , Notes 1, 2, 3)
DV
mV
ref
−
7.2
20
−
7.2
20
KA
ref
K
A
low
high
Ration of Reference Input Voltage Change to Cathode Voltage
Change (Figure 4)
DVref
DVKA
mV
V
−
−
−0.6
0.15
−1.5
0.3
−
−
−0.6
0.15
−1.5
0.3
(V = V to 16 V, I = 10 mA)
KA
ref
K
Reference Terminal Current (Figure 4)
(I = 10 mA, R1 = 10 kW, R2 = open)
K
I
ref
mA
mA
Reference Input Current Deviation Over Temperature (Figure 4)
DI
ref
−
−
0.04
30
0.08
80
−
−
0.04
30
0.08
80
(I = 10 mA, R1 = 10 kW, R2 = open, Notes 1, 2, 3)
K
Minimum Cathode Current for Regulation (Figure 3)
Off−State Cathode Current (Figure 5)
I
)
mA
mA
K(min
I
K(off)
−
−
0.01
0.012 0.05
0.04
−
−
0.01
0.012 0.05
0.04
(V = 6.0 V, V = 0)
KA
ref
(V = 16 V, V = 0)
KA
ref
Dynamic Impedance (Figure 3)
|Z
|
W
KA
−
0.25
0.4
−
0.25
0.4
(V = V , I =0.1 mA to 20 mA, f ≤ 1.0 kHz, Note 4)
KA
ref
K
1. Ambient temperature range: T = *40°C, T
= 85°C.
low
high
2. Guaranteed but not tested.
3. The deviation parameters DV and DI are defined as the difference between the maximum value and minimum value obtained over the
ref
ref
full operating ambient temperature range that applied.
V
ref
Max
DV = V Max − V Min
ref
ref
ref
DT = T − T
1
V
ref
Min
A
2
T
1
Ambient Temperature
T
2
The average temperature coefficient of the reference input voltage, aV is defined as:
ref
(DV
ref
)
106
ǒ
Ǔ
V
(T + 25°C)
A
ref
ppm
ref ǒ Ǔ+
°C
αV
DT
A
aV can be positive or negative depending on whether V Min or V Max occurs at the lower ambient temperature, refer to Figure 8.
ref
ref
ref
Example: DV = 7.2 mV and the slope is positive,
ref
Example: V @ 25°C = 1.241 V
ref
Example: DT = 125°C
A
106
0.0072
1.241
ppm
°C
ref ǒ Ǔ+
αV
+ 46 ppmń°C
125
4. The dynamic impedance Z is defined as:
KA
DV
KA
DIK
⏐Z ⏐ +
KA
When the device is operating with two external resistors, R1 and R2, (refer to Figure 4) the total dynamic impedance of the circuit is given by:
R1
⏐ ǒ1 )
Ǔ
⏐Z ′⏐ + ⏐Z
KA
KA
R2
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3
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
ELECTRICAL CHARACTERISTICS (T = 25°C unless otherwise noted)
A
TLV431C
Typ
Min
Max
Characteristic
Symbol
Unit
Reference Voltage (Figure 3)
V
ref
V
(V = V , I = 10 mA, T = 25°C)
1.237 1.240 1.243
KA
(T = T
A
ref
K
A
to T , Note 5)
1.228
−
1.252
low
high
Reference Input Voltage Deviation Over Temperature (Figure 3)
(V = V , I = 10 mA, T = T to T , Notes 5, 6, 7)
DV
mV
ref
−
7.2
2.0
KA
ref
K
A
low
high
Ration of Reference Input Voltage Change to Cathode Voltage Change (Figure 4)
(V = V to 16 V, I = 10 mA)
DVref
DVKA
mV
V
−
−
−0.6
0.15
−1.5
0.3
KA
ref
K
Reference Terminal Current (Figure 4)
(I = 10 mA, R1 = 10 kW, R2 = open)
K
I
ref
mA
Reference Input Current Deviation Over Temperature (Figure 4)
(I = 10 mA, R1 = 10 kW, R2 = open, Notes 5, 6, 7)
K
DI
ref
mA
−
−
0.04
30
0.08
80
Minimum Cathode Current for Regulation (Figure 3)
Off−State Cathode Current (Figure 5)
I
)
mA
mA
K(min
I
K(off)
−
−
0.01
0.012 0.05
0.04
(V = 6.0 V, V = 0)
KA
ref
(V = 16 V, V = 0)
KA
ref
Dynamic Impedance (Figure 3)
|Z
|
W
KA
−
0.25
0.4
(V = V , I = 0.1 mA to 20 mA, f ≤ 1.0 kHz, Note 8)
KA
ref
K
5. Ambient temperature range: T = *40°C, T
= 85°C.
low
high
6. Guaranteed but not tested.
7. The deviation parameters DV and DI are defined as the difference between the maximum value and minimum value obtained over the
ref
ref
full operating ambient temperature range that applied.
V
ref
Max
DV = V Max − V Min
ref
ref
ref
DT = T − T
1
V
ref
Min
A
2
T
1
Ambient Temperature
T
2
The average temperature coefficient of the reference input voltage, aV is defined as:
ref
(DV
ref
)
106
ǒ
Ǔ
V
(T + 25°C)
A
ref
ppm
ref ǒ Ǔ+
°C
αV
DT
A
aV can be positive or negative depending on whether V Min or V Max occurs at the lower ambient temperature, refer to Figure 8.
ref
ref
ref
Example: DV = 7.2 mV and the slope is positive,
ref
Example: V @ 25°C = 1.241 V
ref
Example: DT = 125°C
A
106
0.0072
1.241
ppm
°C
ref ǒ Ǔ+
αV
+ 46 ppmń°C
125
8. The dynamic impedance Z is defined as:
KA
DV
KA
DIK
⏐Z ⏐ +
KA
When the device is operating with two external resistors, R1 and R2, (refer to Figure 4) the total dynamic impedance of the circuit is given by:
R1
⏐ ǒ1 )
Ǔ
⏐Z ′⏐ + ⏐Z
KA
KA
R2
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TLV431A, TLV431B, TLV431C, SCV431B, NCV431
ELECTRICAL CHARACTERISTICS (T = 25°C unless otherwise noted)
A
NCV431A
Typ
Min
Max
Characteristic
Symbol
Unit
Reference Voltage (Figure 3)
V
ref
V
1.228 1.240 1.252
(V = V , I = 10 mA, T = 25°C)
KA
ref
K
A
1.215
1.211
−
−
1.265
1.265
(T = *40°C to 85°C)
A
(T = *40°C to 125°C)
A
Reference Input Voltage Deviation Over Temperature (Figure 3)
DV
mV
ref
−
−
7.2
7.2
20
24
(V = V , I = 10 mA, T = *40°C to 85°C, Notes 9, 10)
KA
ref
K
A
(V = V , I = 10 mA, T = *40°C to 125°C, Notes 9, 10)
KA
ref
K
A
Ration of Reference Input Voltage Change to Cathode Voltage Change (Figure 4)
(V = V to 16 V, I = 10 mA)
DVref
DVKA
mV
V
−
−
−0.6
0.15
−1.5
0.3
KA
ref
K
Reference Terminal Current (Figure 4)
(I = 10 mA, R1 = 10 kW, R2 = open)
K
I
ref
mA
Reference Input Current Deviation Over Temperature (Figure 4)
DI
ref
mA
−
−
0.04
−
0.08
0.10
(I = 10 mA, R1 = 10 kW, R2 = open, T = *40°C to 85°C, Notes 9, 10)
K
A
(I = 10 mA, R1 = 10 kW, R2 = open, T = *40°C to 125°C, Notes 9, 10)
K
A
Minimum Cathode Current for Regulation (Figure 3)
I
)
−
30
80
mA
mA
K(min
Off−State Cathode Current (Figure 5)
I
K(off)
−
−
0.01
0.012 0.05
0.04
(V = 6.0 V, V = 0)
KA
ref
(V = 16 V, V = 0)
KA
ref
Dynamic Impedance (Figure 3)
|Z
|
W
KA
−
0.25
0.4
(V = V , I =0.1 mA to 20 mA, f ≤ 1.0 kHz, Note 11)
KA
ref
K
9. Guaranteed but not tested.
10.The deviation parameters DV and DI are defined as the difference between the maximum value and minimum value obtained over the
ref
ref
full operating ambient temperature range that applied.
V
ref
Max
DV = V Max − V Min
ref
ref
ref
DT = T − T
1
V
ref
Min
A
2
T
1
Ambient Temperature
T
2
The average temperature coefficient of the reference input voltage, aV is defined as:
ref
(DV
ref
)
106
ǒ
Ǔ
V
(T + 25°C)
A
ref
ppm
ref ǒ Ǔ+
°C
αV
DT
A
aV can be positive or negative depending on whether V Min or V Max occurs at the lower ambient temperature, refer to Figure 8.
ref
ref
ref
Example: DV = 7.2 mV and the slope is positive,
ref
Example: V @ 25°C = 1.241 V
ref
Example: DT = 125°C
A
106
0.0072
1.241
ppm
°C
ref ǒ Ǔ+
αV
+ 46 ppmń°C
125
11. The dynamic impedance Z is defined as:
KA
DV
KA
DIK
⏐Z ⏐ +
KA
When the device is operating with two external resistors, R1 and R2, (refer to Figure 4) the total dynamic impedance of the circuit is given by:
R1
⏐ ǒ1 )
Ǔ
⏐Z ′⏐ + ⏐Z
KA
KA
R2
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5
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
ELECTRICAL CHARACTERISTICS (T = 25°C unless otherwise noted)
A
SCV431B, NCV431B
Min Typ Max
Characteristic
Symbol
Unit
Reference Voltage (Figure 3)
V
ref
V
1.234 1.240 1.246
(V = V , I = 10 mA, T = 25°C)
KA
ref
K
A
1.228
1.224
−
−
1.252
1.252
(T = *40°C to 85°C)
A
(T = *40°C to 125°C)
A
Reference Input Voltage Deviation Over Temperature (Figure 3)
DV
mV
ref
−
−
7.2
7.2
20
24
(V = V , I = 10 mA, T = *40°C to 85°C, Notes 9, 10)
KA
ref
K
A
(V = V , I = 10 mA, T = *40°C to 125°C, Notes 9, 10)
KA
ref
K
A
Ration of Reference Input Voltage Change to Cathode Voltage Change (Figure 4)
(V = V to 16 V, I = 10 mA)
DVref
DVKA
mV
V
−
−
−0.6
0.15
−1.5
0.3
KA
ref
K
Reference Terminal Current (Figure 4)
(I = 10 mA, R1 = 10 kW, R2 = open)
K
I
ref
mA
Reference Input Current Deviation Over Temperature (Figure 4)
DI
ref
mA
−
−
0.04
−
0.08
0.10
(I = 10 mA, R1 = 10 kW, R2 = open, T = *40°C to 85°C, Notes 12, 13)
K
A
(I = 10 mA, R1 = 10 kW, R2 = open, T = *40°C to 125°C, Notes 12, 13)
K
A
Minimum Cathode Current for Regulation (Figure 3)
I
)
−
30
80
mA
mA
K(min
Off−State Cathode Current (Figure 5)
I
K(off)
−
−
0.01
0.012 0.05
0.04
(V = 6.0 V, V = 0)
KA
ref
(V = 16 V, V = 0)
KA
ref
Dynamic Impedance (Figure 3)
|Z
|
W
KA
−
0.25
0.4
(V = V , I =0.1 mA to 20 mA, f ≤ 1.0 kHz, Note 14)
KA
ref
K
12.Guaranteed but not tested.
13.The deviation parameters DV and DI are defined as the difference between the maximum value and minimum value obtained over the
ref
ref
full operating ambient temperature range that applied.
V
ref
Max
DV = V Max − V Min
ref
ref
ref
DT = T − T
1
V
ref
Min
A
2
T
1
Ambient Temperature
T
2
The average temperature coefficient of the reference input voltage, aV is defined as:
ref
(DV
ref
)
106
ǒ
Ǔ
V
(T + 25°C)
A
ref
ppm
ref ǒ Ǔ+
°C
αV
DT
A
aV can be positive or negative depending on whether V Min or V Max occurs at the lower ambient temperature, refer to Figure 8.
ref
ref
ref
Example: DV = 7.2 mV and the slope is positive,
ref
Example: V @ 25°C = 1.241 V
ref
Example: DT = 125°C
A
106
0.0072
1.241
ppm
°C
ref ǒ Ǔ+
αV
+ 46 ppmń°C
125
14.The dynamic impedance Z is defined as:
KA
DV
KA
DIK
⏐Z ⏐ +
KA
When the device is operating with two external resistors, R1 and R2, (refer to Figure 4) the total dynamic impedance of the circuit is given by:
R1
⏐ ǒ1 )
Ǔ
⏐Z ′⏐ + ⏐Z
KA
KA
R2
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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6
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
Input
V
KA
Input
V
KA
Input
V
KA
I
K
I
K
I
K(off)
I
R1
R2
ref
V
ref
V
ref
R1
R2
ꢀǒꢀ1 ) ꢀǓ) I
V
+ V
ꢀSꢀR1
KA
ref
ref
Figure 3. Test Circuit
for VKA = Vref
Figure 4. Test Circuit
Figure 5. Test Circuit
for IK(off)
for VKA u Vref
110
90
70
50
30
10
30
Input
V
KA
I
K
Input
V
KA
20
10
I
K
I
K(min)
V
T
= V
KA
= 25°C
ref
A
V
T
= V
ref
KA
= 25°C
A
0
−10
−30
−10
−1.0
−0.5
0
0.5
1.0
1.5
2.0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
V
KA
, CATHODE VOLTAGE (V)
V
KA
, CATHODE VOLTAGE (V)
Figure 6. Cathode Current vs. Cathode Voltage
Figure 7. Cathode Current vs. Cathode Voltage
0.15
0.14
1.25
1.24
Vref
(max)
Input
10 k
V
KA
I
K
I
ref
Vref
(typ)
I
K
= 10 mA
1.23
1.22
0.13
0.12
Input
V
KA
Vref
(min)
I
K
V
= V
ref
KA
I
K
= 10 mA
TLV431A Typ.
60
−40
−15
10
35
85
−40
−15
10
35
60
85
T , AMBIENT TEMPERATURE (°C)
A
T , AMBIENT TEMPERATURE (°C)
A
Figure 8. Reference Input Voltage versus
Ambient Temperature
Figure 9. Reference Input Current versus
Ambient Temperature
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TLV431A, TLV431B, TLV431C, SCV431B, NCV431
4.0
0
−2.0
−4.0
−6.0
Input
V
KA
I
= 10 mA
K
I
off
V
= 16 V
= 0 V
KA
T = 25°C
A
V
ref
3.0
2.0
Input
V
KA
I
K
R1
R2
1.0
0
V
ref
T = 25°C
−8.0
−10
A
0
4.0
8.0
12
16
0
4.0
8.0
12
16
20
V
KA
, CATHODE VOLTAGE (V)
V
KA
, CATHODE VOLTAGE (V)
Figure 10. Reference Input Voltage Change
versus Cathode Voltage
Figure 11. Off−State Cathode Current
versus Cathode Voltage
0.4
0.3
0.2
10
Output
I
K
Input
V
KA
50
I
off
V
= 16 V
= 0 V
KA
−
+
V
ref
1.0
0.1
0.1
0
I
K
= 0.1 mA to 20 mA
T = 25°C
A
−40
−15
10
35
60
85
1.0 k
10 k
100 k
f, FREQUENCY (Hz)
1.0 M
10 M
T , AMBIENT TEMPERATURE (°C)
A
Figure 12. Off−State Cathode Current versus
Ambient Temperature
Figure 13. Dynamic Impedance versus
Frequency
0.24
0.23
0.22
0.21
60
50
40
30
20
Output
I
= 0.1 mA to 20 mA
K
f = 1.0 kHz
Output
15 k
I
K
I
K
9 m F
230
50
−
+
−
+
8.25 k
I
= 10 mA
K
T = 25°C
A
0.20
0.19
10
0
−40
−15
10
35
60
85
100
1.0 k
10 k
f, FREQUENCY (Hz)
100 k
1.0 M
T , AMBIENT TEMPERATURE (°C)
A
Figure 14. Dynamic Impedance versus
Ambient Temperature
Figure 15. Open−Loop Voltage Gain
versus Frequency
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8
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
350
Output
1.8 kW
Input
Input
Output
I
K
I
ref
1.5
1.0
0.5
0
325
300
V
I
T
A
= V
ref
= 10 mA
= 25°C
KA
50
Output
Input
K
T
A
= 25°C
2.0
0
275
250
10
100
1.0 k
f, FREQUENCY (Hz)
10 k
100 k
0
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
t, TIME (ms)
Figure 16. Spectral Noise Density
Figure 17. Pulse Response
1.0 k
25
20
15
T = 25°C
A
I
K
R1
R2
A
Stable
V+
C
L
C
B
Stable
10
5.0
0
Stable
Unstable
Regions
V
(V)
R1
(kW)
R2
(kW)
KA
D
10
100
pF
1.0
nF
0.01
mF
0.1
mF
1.0
mF
10
mF
100
mF
A, C
B, D
V
0
∞
ref
pF
5.0
30.4
10
C , LOAD CAPACITANCE
L
Figure 18. Stability Boundary Conditions
Figure 19. Test Circuit for Figure 18
Stability
Figures 18 and 19 show the stability boundaries and
circuit configurations for the worst case conditions with the
load capacitance mounted as close as possible to the device.
The required load capacitance for stable operation can vary
depending on the operating temperature and capacitor
equivalent series resistance (ESR). Ceramic or tantalum
surface mount capacitors are recommended for both
temperature and ESR. The application circuit stability
should be verified over the anticipated operating current and
temperature ranges.
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9
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
TYPICAL APPLICATIONS
V
in
V
out
V
in
V
out
R1
R2
R1
R2
R1
R2
R1
R2
+ ǒ1 ) ǓV
V
+ ǒ1 ) ǓV
V
out
ref
out
ref
Figure 20. Shunt Regulator
Figure 21. High Current Shunt Regulator
V
in
V
out
MC7805
V
in
Out
Common
In
V
out
R1
R2
R1
R2
R1
R2
R1
R2
+ ǒ1 ) ǓV
+ ǒ1 ) ǓV
out(min)
V
V
out
out
ref
ref
V
+ V ) 5.0 V
V
+ V ) V
ref
out
in(min)
V
be
+ V
out(min)
ref
Figure 22. Output Control for a Three Terminal
Fixed Regulator
Figure 23. Series Pass Regulator
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10
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
I
V
in
sink
V
ref
I
+
sink
R
S
I
out
R
CL
V
in
V
out
R
S
V
R
ref
I
+
out
CL
Figure 24. Constant Current Source
Figure 25. Constant Current Sink
V
in
V
in
V
out
V
out
R1
R1
R2
R2
R1
R2
R1
R2
+ ǒ1 ) ǓV
+ ǒ1 ) ǓV
V
V
out(trip)
ref
out(trip)
ref
Figure 26. TRIAC Crowbar
Figure 27. SCR Crowbar
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11
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
25 V
V
in
2.0 mA
1N5305
R1
R3
LED
5 k
1%
50 k
1%
1.0 M
1%
500 k
1%
10 k
Calibrate
10 kW
100 kW
V
V
R2
R4
1.0 kW
1.0 MW
V
V
25 V
-
+
L.E.D. indicator is ‘ON’ when V is
between the upper and lower limits,
in
V
out
Range
R1
R2
Lower limit + ǒ1 ) ǓVref
−5.0 V
R
x
R3
W
V
Upper limit + ǒ1 ) ǓVref
R
+ V ꢀDꢀꢀ ꢀ Range
x
R4
out
Figure 28. Voltage Monitor
Figure 29. Linear Ohmmeter
38 V
T1 = 330 W to 8.0 W
330
T1
+
470 mF
8.0 W
360 k
1.0 mF
Volume
47 k
*
0.05 mF
25 k
*Thermalloy
*THM 6024
*Heatsink on
*LP Package.
56 k
Tone
10 k
Figure 30. Simple 400 mW Phono Amplifier
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12
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
AC Input
DC Output
3.3 V
Gate Drive
100
V
CC
Controller
R1
3.0 k
V
FB
C1
0.1 mF
Current
Sense
R2
1.8 k
GND
Figure 31. Isolated Output Line Powered Switching Power Supply
The above circuit shows the TLV431A/B/C as a compensated amplifier controlling the feedback loop of an isolated output line
powered switching regulator. The output voltage is programmed to 3.3 V by the resistors values selected for R1 and R2. The
minimum output voltage that can be programmed with this circuit is 2.64 V, and is limited by the sum of the reference voltage
(1.24 V) and the forward drop of the optocoupler light emitting diode (1.4 V). Capacitor C1 provides loop compensation.
PIN CONNECTIONS AND DEVICE MARKING
TO−92
TSOP−5
SOT−23−3
TLV43
1XXX
ALYWWG
G
1
2
3
5
4
Anode
NC
NC
1
Reference
Cathode
Anode
3
Reference
Cathode
2
1. Reference
2. Anode
(Top View)
(Top View)
3. Cathode
XXX
A
Y
= Specific Device Code
= Assembly Location
= Year
XXX
M
= Specific Device Code
= Date Code
= Pb−Free Package
1
2 3
G
L
= Wafer Lot
(Note: Microdot may be in either location)
WW, W = Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
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13
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
ORDERING INFORMATION
Device
†
Device Code
Package
Shipping
TLV431ALPG
ALP
TO−92−3
(Pb−Free)
6000 / Box
TLV431ALPRAG
TLV431ALPREG
TLV431ALPRMG
TLV431ALPRPG
TLV431ASNT1G
TLV431ASN1T1G
TLV431BLPG
ALP
ALP
ALP
ALP
RAA
RAF
BLP
BLP
BLP
BLP
BLP
RAH
RAG
AAN
RAC
ACH
AD6
TO−92−3
(Pb−Free)
2000 / Tape & Reel
2000 / Tape & Reel
2000 / Ammo Pack
2000 / Ammo Pack
3000 / Tape & Reel
3000 / Tape & Reel
6000 / Box
TO−92−3
(Pb−Free)
TO−92−3
(Pb−Free)
TO−92−3
(Pb−Free)
TSOP−5
(Pb−Free, Halide−Free)
SOT−23−3
(Pb−Free, Halide−Free)
TO−92−3
(Pb−Free)
TLV431BLPRAG
TLV431BLPREG
TLV431BLPRMG
TLV431BLPRPG
TLV431BSNT1G
TLV431BSN1T1G
TLV431CSN1T1G
SCV431BSN1T1G*
NCV431ASNT1G*
NCV431BSNT1G*
TO−92−3
(Pb−Free)
2000 / Tape & Reel
2000 / Tape & Reel
2000 / Ammo Pack
2000 / Ammo Pack
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
TO−92−3
(Pb−Free)
TO−92−3
(Pb−Free)
TO−92−3
(Pb−Free)
TSOP−5
(Pb−Free, Halide−Free)
SOT−23−3
(Pb−Free, Halide−Free)
SOT−23−3
(Pb−Free, Halide−Free)
SOT−23−3
(Pb−Free, Halide−Free)
TSOP−5
(Pb−Free, Halide−Free)
TSOP−5
(Pb−Free, Halide−Free)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*SCV, NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and
PPAP Capable.
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14
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
PACKAGE DIMENSIONS
TO−92 (TO−226)
LP SUFFIX
CASE 29−11
ISSUE AM
NOTES:
A
STRAIGHT LEAD
BULK PACK
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.
B
R
4. LEAD DIMENSION IS UNCONTROLLED IN P AND
BEYOND DIMENSION K MINIMUM.
P
L
INCHES
DIM MIN MAX
MILLIMETERS
SEATING
PLANE
K
MIN
4.45
4.32
3.18
0.407
1.15
2.42
0.39
12.70
6.35
2.04
---
MAX
5.20
5.33
4.19
0.533
1.39
2.66
0.50
---
A
B
C
D
G
H
J
0.175
0.170
0.125
0.016
0.045
0.095
0.015
0.500
0.250
0.080
---
0.205
0.210
0.165
0.021
0.055
0.105
0.020
---
D
X X
G
J
H
V
K
L
---
---
N
P
R
V
0.105
0.100
---
2.66
2.54
---
C
SECTION X−X
0.115
0.135
2.93
3.43
1
N
---
---
N
NOTES:
A
BENT LEAD
TAPE & REEL
AMMO PACK
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. CONTOUR OF PACKAGE BEYOND
DIMENSION R IS UNCONTROLLED.
B
R
4. LEAD DIMENSION IS UNCONTROLLED IN P
AND BEYOND DIMENSION K MINIMUM.
P
T
SEATING
PLANE
MILLIMETERS
DIM MIN
MAX
5.20
5.33
4.19
0.54
2.80
0.50
---
K
A
B
C
D
G
J
4.45
4.32
3.18
0.40
2.40
0.39
12.70
2.04
1.50
2.93
3.43
D
X X
G
K
N
P
R
V
J
2.66
4.00
---
V
C
---
SECTION X−X
1
N
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15
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
PACKAGE DIMENSIONS
SOT−23−3
SN1 SUFFIX
CASE 318−08
ISSUE AP
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
D
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH
THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM
THICKNESS OF BASE MATERIAL.
SEE VIEW C
3
4. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH,
PROTRUSIONS, OR GATE BURRS.
H
E
MILLIMETERS
INCHES
E
DIM
A
A1
b
c
D
E
e
L
L1
MIN
0.89
0.01
0.37
0.09
2.80
1.20
1.78
0.10
0.35
2.10
0°
NOM
1.00
0.06
0.44
0.13
2.90
1.30
1.90
0.20
0.54
2.40
−−−
MAX
MIN
0.035
0.001
0.015
0.003
0.110
0.047
0.070
0.004
0.014
0.083
0°
NOM
0.040
0.002
0.018
0.005
0.114
0.051
0.075
0.008
0.021
0.094
−−−
MAX
0.044
0.004
0.020
0.007
0.120
0.055
0.081
0.012
0.029
0.104
10°
1.11
0.10
0.50
0.18
3.04
1.40
2.04
0.30
0.69
2.64
10°
c
1
2
b
0.25
e
q
H
E
q
A
L
A1
L1
VIEW C
SOLDERING FOOTPRINT
0.95
0.037
0.95
0.037
2.0
0.079
0.9
0.035
mm
inches
ǒ
Ǔ
SCALE 10:1
0.8
0.031
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16
TLV431A, TLV431B, TLV431C, SCV431B, NCV431
PACKAGE DIMENSIONS
TSOP−5
SN SUFFIX
CASE 483−02
NOTES:
ISSUE K
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
NOTE 5
5X
D
2. CONTROLLING DIMENSION: MILLIMETERS.
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH
THICKNESS. MINIMUM LEAD THICKNESS IS THE
MINIMUM THICKNESS OF BASE MATERIAL.
4. DIMENSIONS A AND B DO NOT INCLUDE MOLD
FLASH, PROTRUSIONS, OR GATE BURRS. MOLD
FLASH, PROTRUSIONS, OR GATE BURRS SHALL NOT
EXCEED 0.15 PER SIDE. DIMENSION A.
5. OPTIONAL CONSTRUCTION: AN ADDITIONAL
TRIMMED LEAD IS ALLOWED IN THIS LOCATION.
TRIMMED LEAD NOT TO EXTEND MORE THAN 0.2
FROM BODY.
0.20 C A B
2X
0.10
T
M
5
4
3
2X
0.20
T
B
S
1
2
K
B
A
DETAIL Z
G
A
MILLIMETERS
TOP VIEW
DIM
A
B
MIN
3.00 BSC
1.50 BSC
MAX
DETAIL Z
C
D
0.90
0.25
1.10
0.50
J
G
H
J
K
M
S
0.95 BSC
C
0.01
0.10
0.20
0
0.10
0.26
0.60
0.05
H
SEATING
PLANE
END VIEW
C
10
_
_
SIDE VIEW
2.50
3.00
SOLDERING FOOTPRINT*
1.9
0.074
0.95
0.037
2.4
0.094
1.0
0.039
0.7
0.028
mm
inches
ǒ
Ǔ
SCALE 10:1
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
ON Semiconductor and the
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.
SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed
at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation
or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets
and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each
customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended,
or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which
the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or
unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim
alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable
copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
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USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
Literature Distribution Center for ON Semiconductor
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Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
For additional information, please contact your local
Sales Representative
TLV431A/D
相关型号:
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