ZTL431AFTA [DIODES]
COST EFFECTIVE ADJUSTABLE PRECISION SHUNT REGULATOR; 成本效益的可调节精密并联稳压器
| 型号： | ZTL431AFTA |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | COST EFFECTIVE ADJUSTABLE PRECISION SHUNT REGULATOR |
| 文件： | 总9页 (文件大小：163K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A Product Line of
Diodes Incorporated
ZTL431/ZTL432
COST EFFECTIVE ADJUSTABLE PRECISION SHUNT REGULATOR
Description
Pin Assignments
ZTL431_F SOT23, ZTL431_FF SOT23F
(Top View)
The ZTL431 and ZTL432 are three terminal adjustable
shunt regulators offering excellent temperature stability and
output current handling capability up to 100mA. The output
voltage may be set to any chosen voltage between 2.5 and
20 volts by selection of two external divider resistors.
Cathode
Ref
3
1
Anode
The devices can be used as a replacement for zener
diodes in many applications requiring an improvement in
zener performance.
2
ZTL432_F SOT23, ZTL432_FF SOT23F
(Top View)
The ZTL432 has the same electrical specifications as the
ZTL431 but has a different pin out in SOT23 (F-suffix) and
SOT23F (FF-suffix).
Ref
3
1
Anode
Both variants are available in
tolerances of 1% and 0.5% for the A and B grades
respectively.
2 grades with initial
Cathode
2
ZTL431_H6, SC70-6
(Top View)
These are functionally equivalent to the TL431/ TL432
except for maximum operation voltage, and have an
ambient temperature range of -40 to 125°C as standard.
Cathode
Anode
1
2
3
6
N/C†
Ref
N/C†
NC
5
4
Features
•
•
Temperature range ................ -40 to 125°C
Reference voltage tolerance at 25°C
†Connected internally to substrate;
should be left floating or connected to Anode
o
o
0.5%.......................................B grade
1% .........................................A grade
ZTL431ASE5 SOT235
(Top View)
•
•
•
0.2Ω typical output impedance
Sink current capability…….. 1mA to 100mA
Adjustable output voltage……VREF to 20V
1
2
N/C
5
Cathode
Anode
Applications
N/C
Ref
4
3
•
•
•
•
Opto-coupler linearization
Linear regulators
ZTL431_E5 SOT235
(Top View)
Improved zener
Variable reference
Anode
N/C
1
2
5
N/C*
Cathode
4
Ref
3
*must be left floating or
connected to pin 5
1 of 9
www.diodes.com
November 2010
© Diodes Incorporated
ZTL431/ZTL432
Document number: DS33263 Rev. 15 - 2
A Product Line of
Diodes Incorporated
ZTL431/ZTL432
Absolute Maximum Ratings (Voltages specified are relative to the ANODE pin unless otherwise stated)
Parameter
Rating
20
Unit
V
Cathode Voltage (VKA
)
Continuous Cathode Current (IKA
)
150
mA
Reference Input Current Range (IREF
Operating Junction Temperature
Storage Temperature
)
-50µA to 10mA
-40 to 150
-55 to 150
°C
°C
Operation above the absolute maximum rating may cause device failure.
Operation at the absolute maximum ratings, for extended periods, may reduce device reliability.
Package Thermal Data
PDIS
Package
θJA
TA = 25°C, TJ = 150°C
SOT23
SOT23F
SOT23-5
SOT70-6
380°C/W
138°C/W
250°C/W
380°C/W
330 mW
900 mW
500 mW
330mW
Recommended Operating Conditions
Min
VREF
1
Max
20
100
125
Units
V
mA
°C
VKA Cathode Voltage
IKA Cathode Current
TA Operating Ambient Temperature Range
-40
Electrical Characteristics (Test conditions unless otherwise specified: T = 25°C)
A
Symbol
Parameter
Conditions
ZTL43_A
Min.
2.475
2.487
Typ.
2.5
2.5
6
Max.
2.525
2.513
16
Units
VKA = VREF
IKA = 10mA
VREF
Reference voltage
V
ZTL43_B
TA = 0 to 70°
TA = -40 to 85°C
TA = -40 to 125°C
Deviation of reference
voltage over full
temperature range
VKA = VREF
VDEV
14
34
IKA = 10 mA
mV
14
34
Ratio of change in
reference voltage
to the change in
cathode voltage
V
KA = VREF to 10
-1.4
-2.7
ΔVREF
ΔVKA
I
KA = 10mA
mV/V
µA
VKA = 10V to 20V
-1.0
2
-2.0
4
IKA = 10mA, R1 = 10kΩ
R2 = OC
IREF
Reference input current
TA = 0 to 70°C
0.8
0.8
0.8
1.2
2.5
2.5
I
KA = 10mA
IREF deviation over full R1 = 10kΩ
TA = -40 to 85°C
TA = -40 to 125°C
µA
ΔIREF
temperature range
R2 = OC
Minimum cathode
current for regulation
IKA(MIN)
IKA(OFF)
RZ
VKA = VREF
0.4
0.1
0.2
0.6
0.5
0.5
mA
µA
Ω
Off state current
VKA = 20V, VREF = 0V
VKA = VREF, f = 0Hz
Dynamic output
impedance
2 of 9
www.diodes.com
November 2010
© Diodes Incorporated
ZTL431/ZTL432
Document number: DS33263 Rev. 15 - 2
A Product Line of
Diodes Incorporated
ZTL431/ZTL432
Typical Characteristics
IKA = 10mA
Reference Voltage vs. Temperature
VREF = VKA
Dynamic Impedance vs. Frequency
1000
SOT23F
900
800
700
600
500
400
300
200
100
0
SOT23-5
SOT23
SC70-6
0
25
50
75
100
125
Ambient Temperature (°C)
Power Dissipation Derating
3 of 9
www.diodes.com
November 2010
© Diodes Incorporated
ZTL431/ZTL432
Document number: DS33263 Rev. 15 - 2
A Product Line of
Diodes Incorporated
ZTL431/ZTL432
Typical Characteristics (Cont.)
VKA
IKA
60
50
40
30
20
10
0
100
1000
10000
100000
1000000
Frequency (Hz)
IKA
Test Circuit for Open Loop Voltage Gain
Gain vs. Frequency
VKA
VKA
Pulse Response
Test Circuit for Pulse Response
VKA
100
90
80
70
60
50
40
30
20
10
0
IKA
Stable
Stable
10.0E-12
100.0E-12
1.0E-9
10.0E-9
100.0E-9
1.0E-6
Load Capacitance (F)
V
REF < VKA < 20, IKA = 10mA, TA = 25°C
Stability Boundary Condition
Test Circuit for Stabilty Boundary Conditions
4 of 9
www.diodes.com
November 2010
© Diodes Incorporated
ZTL431/ZTL432
Document number: DS33263 Rev. 15 - 2
A Product Line of
Diodes Incorporated
ZTL431/ZTL432
Application Circuits
V+
VOUT
V+
VOUT
R1
R2
R1
VREF
VREF
R2
VREF
VOUT
VREF
VOUT
Higher current shunt
regulator
Shunt regulator
V+
ZSR***
Out
Common
V+
VOUT
In
30ꢀ
R1
VREF
R2
0.01µF
R1
VOUT
VREF
R2
VOUT(MIN) = VREF + VREG
VOUT VREF
VOUT
VREF
Output control of a three
terminal fixed regulator
Series regulator
V+
R1
V+
R1
VREF
Output
Output
VREF
R2a
Input
VON~ 2V
R2b
VOFF = V+
VTH = 2.5V
VREF
VREF
Single supply comparator
with temperature
compensated threshold
Over voltage / under voltage
protection circuit
5 of 9
www.diodes.com
November 2010
© Diodes Incorporated
ZTL431/ZTL432
Document number: DS33263 Rev. 15 - 2
A Product Line of
Diodes Incorporated
ZTL431/ZTL432
DC Test Circuits
Notes
Deviation of reference input voltage, Vdev, is defined as
the maximum variation of the reference input voltage
over the full temperature range.
The average temperature coefficient of the reference
input voltage, Vref is defined as:
VREF(ppm/°C)
=
VDEV × 1,000,000
VREF(T1-T2)
The dynamic output impedance, Rz, is defined as:
RZ = ΔVZ
ΔIZ
When the device is programmed with two external
resistors, R1 and R2, (fig 2), the dynamic output
impedance of the overall circuit, R'z, is defined as:
R'Z = RZ
(
1 + R1
)
R2
Stability Boundary
The ZTL431 and ZTL432 are stable with a range of
capacitive loads.
A zone of instability exists as
demonstrated in the typical characteristic graph on page
4. The graph shows typical conditions. To ensure
reliable stability a capacitor of 4.7nF or greater is
recommended between anode and cathode.
6 of 9
www.diodes.com
November 2010
© Diodes Incorporated
ZTL431/ZTL432
Document number: DS33263 Rev. 15 - 2
A Product Line of
Diodes Incorporated
ZTL431/ZTL432
Ordering Information
Tape Width
Quantity
per Reel
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
Tol.
Ordering Code
Pack
Part Mark
Status*
Reel Size
(mm)
ZTL431AE5TA
ZTL431AFFTA
ZTL431AFTA
ZTL431AH6TA
SOT23-5
SOT23F
SOT23
31A
31A
31A
31A
S2A
32A
32A
31B
31B
31B
31B
32B
32B
Active
Active
Active
Active
Active
Active
Active
Active
Active
Active
Active
Active
Active
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
8
8
8
8
8
8
8
8
8
8
8
8
8
1%
SC70-6
ZTL431ASE5TA SOT23-5
ZTL432AFFTA
ZTL432AFTA
ZTL431BE5TA
ZTL431BFFTA
ZTL431BFTA
ZTL431BH6TA
ZTL432BFFTA
ZTL432BFTA
SOT23F
SOT23
SOT23-5
SOT23F
SOT23
SC70-6
SOT23F
SOT23
0.5%
Package Outline Dimensions
SOT23
E
Millimeters
Inches
Min. Max. Min. Max.
1.12
A1 0.01 0.10 0.0004 0.004
Millimeters
Inches
Dim.
Dim.
Min. Max. Max. Max.
e
A
-
-
0.044 e1 1.90 NOM 0.075 NOM
e1
b
E
2.10 2.64 0.083 0.104
0.25 0.62 0.018 0.024
3 leads
b
C
D
e
0.30 0.50 0.012 0.020 E1 1.20 1.40 0.047 0.055
0.085 0.120 0.003 0.008
L
D
L1
E1
2.80 3.04 0.110 0.120 L1 0.45 0.62 0.018 0.024
0.95 NOM 0.0375 NOM
-
-
-
-
-
A
Note: Controlling dimensions are in millimeters.
Approximate dimensions are provided in inches
L
c
A1
SC70-6
Millimeters
Inches
Millimeters
Inches
Dim.
Dim.
Min. Max. Min. Max.
Min. Max. Max. Max.
A
0.80 1.10 0.0315 0.0433
E
2.10 BSC 0.0826 BSC
A1
-
0.10
-
0.0039 E1 1.25 1.35 0.0492 0.0531
A2 0.80 1.00 0.0315 0.0394
e
0.65 BSC 0.0255 BSC
a
b
C
D
0.15 0.30 0.006 0.0118 e1 1.30 BSC 0.0511 BSC
0.08 0.25 0.0031 0.0098
2.00 BSC 0.0787 BSC
L
a
0.26 0.46 0.0102 0.0181
0°
8°
0°
8°
Note: Controlling dimensions are in millimeters.
Approximate dimensions are provided in inches
7 of 9
www.diodes.com
November 2010
© Diodes Incorporated
ZTL431/ZTL432
Document number: DS33263 Rev. 15 - 2
A Product Line of
Diodes Incorporated
ZTL431/ZTL432
Package Outline Dimensions (continued)
SOT23F
Millimeters
Inches
Millimeters
Inches
c
D
e1
Dim.
Dim.
b
b
Min. Max. Min. Max.
Min. Max. Max. Max.
e
L1
A
0.80 1.00 0.031 0.0394
E
2.30 2.50 0.0906 0.0984
L
A1
-
0.10 0.00 0.0043 E1 1.50 1.70 0.0590 0.0669
E
E1
A2 0.06 0.16 0.0024 0.0006 E2 1.10 1.26 0.0433 0.0496
b
c
0.39 0.41 0.0153 0.0161
L
0.48 0.68 0.0189 0.0268
0.11 0.20 0.0043 0.0079 L1 0.39 0.41 0.0153 0.0161
b
A1
R
D
e
2.80 3.00 0.1102 0.1181
R
O
-
0.05 0.15 0.0019 0.0059
0.95 ref
1.90 ref
0.0374 ref
0.7480 ref
0°
-
12°
-
0°
-
12°
-
A
e1
Note: Controlling dimensions are in millimeters.
Approximate dimensions are provided in inches
TO92
Millimeters
Min.
Inches
Dim.
Max.
4.95
0.51
3.50
3.94
5.88
2.94
15.49
2.41
1.52
0.56
4.95
6°
Min.
0.170
0.014
0.099
0.130
0.192
0.096
0.500
0.085
0.045
0.016
0.175
4°
Max.
0.195
0.020
0.138
0.155
0.232
0.116
0.610
0.095
0.060
0.022
0.195
6°
A
b
4.32
0.36
2.50
3.30
4.88
2.44
12.70
2.16
1.14
0.41
4.45
4°
C
E
e
e1
L
R
S1
W
D
*°
Note: Controlling dimensions are in millimeters.
Approximate dimensions are provided in inches
SOT23-5
Millimeters
Min.
Inches
Dim.
Max.
1.45
0.15
1.30
0.50
0.26
3.10
3.20
1.80
Min.
Max.
A
A1
A2
b
0.90
0.00
0.90
0.20
0.09
2.70
2.20
1.30
0.0354
0.00
0.0570
0.0059
0.0511
0.0196
0.0102
0.1220
0.1181
0.0708
0.0354
0.0078
0.0035
0.1062
0.0866
0.0511
C
D
E
E1
e
0.95 REF
1.90 REF
0.0374 REF
0.0748 REF
e1
L
0.10
0°
0.60
30°
0.0039
0°
0.0236
30°
a°
Note: Controlling dimensions are in millimeters.
Approximate dimensions are provided in inches
8 of 9
www.diodes.com
November 2010
© Diodes Incorporated
ZTL431/ZTL432
Document number: DS33263 Rev. 15 - 2
A Product Line of
Diodes Incorporated
ZTL431/ZTL432
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales
channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and
any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or
systems.
Copyright © 2010, Diodes Incorporated
www.diodes.com
9 of 9
www.diodes.com
November 2010
© Diodes Incorporated
ZTL431/ZTL432
Document number: DS33263 Rev. 15 - 2
相关型号：
©2020 ICPDF网 联系我们和版权申明