ZR431F005-7 [DIODES]
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR;
| 型号： | ZR431F005-7 |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | ADJUSTABLE PRECISION ZENER SHUNT REGULATOR 光电二极管 输出元件 |
| 文件： | 总9页 (文件大小：168K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Description
Pin Assignments
The ZR431 is a three terminal adjustable shunt regulator
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.
(Top View)
1
(Top View)
VZ
GND
VREF
VREF
3
4
2
3
GND
1
GND
The devices can be used as a replacement for zener diodes
in many applications requiring an improvement in zener
performance.
VZ
2
SOT223
Pin 4 floating or
SOT23
connected to pin 2
Features
•
•
•
•
•
•
•
•
Surface mount SOT223 and SOT23 packages
2%, 1 % and 0.5% tolerance
Applications
Max. temperature coefficient 55 ppm/°C
Temperature compensated for operation
over the full temperature range
Programmable output voltage
•
•
•
•
•
Shunt regulator
Series regulator
Voltage monitor
50μA to 100mA current sink capability
Low output noise
Over voltage/ under voltage protection
Switch mode power supplies
•
All package options available in “Green” Molding
Compound (No Br, Sb) and Lead Free Finish/ RoHS
Compliant (Note 1)
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
Typical Application Circuit
VZ
VREF
+
GND
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www.diodes.com
October 2011
© Diodes Incorporated
ZR431
Document number: DS33255 Rev. 6 - 2
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Absolute Maximum Ratings (Note 2)
Symbol
VZ
Parameter
Rating
20
Unit
V
Cathode Voltage
IZ
Cathode Current
150
mA
°C
°C
TA
Operating Temperature
Storage Temperature
-40 to +85
-55 to +125
330
TST
SOT23
mW
W
PD
Power Dissipation (Notes 3, 4)
SOT223
2
Notes:
2. Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for extended periods, may
reduce device reliability. Unless otherwise stated voltages specified are relative to the ANODE pin.
3. T , max =150°C.
J
4. Ratings apply to ambient temperature at 25°C.
Recommended Operating Conditions (TA = 25°C)
Symbol
Parameter
Min
VREF
0.05
Max
20
Unit
V
VZ
IZ
Cathode Voltage
Cathode Current
100
mA
Electrical Characteristics (TA = 25°C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min
Typ.
Max
2.55
Unit
Reference voltage (Note 5)
2%
2.45
2.475
2.487
2.50
2.50
2.50
VREF
1 % IL = 10mA (Fig 1), VZ = VREF
0.5%
2.525
2.513
V
IL = 10mA, VZ = VREF
TA = Full range (Fig 1)
VZ from VREF to 10V
Deviation of reference input voltage
over temperature
VDEV
8.0
17
mV
-1.85
-2.7
Ratio of the change in reference
voltage to the change in cathode
voltage
IZ = 10mA (fig 2)
ΔVREF
ΔVZ
mV/V
VZ from 10V to 20V
-1.0
0.12
0.04
-2.0
1.0
0.2
IZ = 10mA (Fig 2)
IREF
Reference input current
R1 = 10k, R2 = O/C, IL = 10mA (Fig 2)
R1 = 10k, R2 = O/C, IL = 10mA
TA = Full range (Fig 2)
μA
μA
Deviation of reference input current
over temperature
ΔIREF
Minimum cathode current for
regulation
IZ(MIN)
VZ = VREF (Fig 1)
35
50
µA
IZ(OFF) Off-state current
RZ
Dynamic output impedance
VZ = 20V, VREF = 0V (Fig 3)
VZ = VREF (Fig 1), f = 0Hz
0.1
μA
Ω
0.75
Note 5:
0.5% and 1% SOT23 only
For definitions of reference voltage temperature coefficient and dynamic output impedance see NOTES following DC TEST CIRCUITS
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www.diodes.com
October 2011
© Diodes Incorporated
ZR431
Document number: DS33255 Rev. 6 - 2
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
DC Test Circuits
IL
IL
VZ
Input
VZ
VZ
Input
Input
IZOFF
IZ
IZ
R1
IREF
IREF
VREF
R2
VREF
Fig.3 Test Circuit for Off State Current
Fig. 1 Test Circuit for VZ = VREF
Fig. 2 Test Circuit for VZ > VREF
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:
VMAX
Vdev ×1000000
Vref (T1− T2)
Vref (ppm/o C) =
The dynamic output impedance, RZ is defined as:
ΔVz
Rz
=
ΔIz
VDEV = VMAX - VMIN
VMIN
When the device is programmed with two external resistors,
R1 and R2, (Fig 2), the dynamic output impedance of the
overall circuit, R’, is defined as:
R1
′
R = Rz(1+
)
R2
T1
Temperature
T2
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www.diodes.com
October 2011
© Diodes Incorporated
ZR431
Document number: DS33255 Rev. 6 - 2
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Typical Characteristics
160
0
V
= VZ
REF
I
= 10mA
Z
I
= 10mA
Z
140
140
130
-5
-10
-15
120
110
-20
-25
100
0
-40
-20
20
TEMPERATURE (°C)
Reference Current vs. Temperature
40
60
80
5
10
CATHODE VOLTAGE (V)
Change in VREF vs. Cathode Voltage
15
20
38
100
V
= V
Z
REF
36
34
32
30
28
10
1.0
26
24
0.1
100
0
1k
10k
100k
1M
-40
-20
20
TEMPERATURE (°C)
Cathode Current vs. Temperature
40
60
80
FREQUENCY (Hz)
Dynamic Impedance vs. Frequency
2.506
2.504
2.0
1.0
0
I
= 10mA
Z
2.502
2.500
2.498
2.496
2.494
SOT223
SOT23
2.492
2.490
-40
-20
20
40
0
60
80
25
50
AMBIENT TEMPERATURE (
Power Dissipation Derating
75 85
100
TEMPERATURE (°C)
°
C)
Reference Voltage vs. Temperature
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October 2011
© Diodes Incorporated
ZR431
Document number: DS33255 Rev. 6 - 2
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Typical Characteristics (cont.)
60
V
Z
I
Z
230
15k
40
9µF
+
20
0
8k25
-
IZ = 10mA, TA = 25°C
100
1k
10k
100k
1M
FREQUENCY (Hz)
Gain vs. Frequency
Test Circuit for Open Loop Voltage Gain
220
V
Input Monitor
Z
3.0
Repetitive Pulse
2.0
1.0
Single Pulse
V
Z
Pulse
Generator
50
0
5.0
0
INPUT
TA = 25°C
0
0.2
0.4
0.6
0.8
1.0
TIME (µs)
Pulse Response
Test Circuit for Pulse Response
100
80
150
Input
V
Z
I
Z
10k
STABLE
STABLE
60
40
20
0
VREF < VZ < 20, IZ = 10mA, TA = 25°C
10p
100p
1000p 0.01µ
0.1µ
1µ
LOAD CAPACITANCE (F)
Stability Boundary Conditions
Test Circuit for Stability Boundary Conditions
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October 2011
© Diodes Incorporated
ZR431
Document number: DS33255 Rev. 6 - 2
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Application Characteristics
V+
V+
V
OUT
V
OUT
R1
R1
R2
V
REF
V
REF
R2
R1
R2
R1
R2
⎛
⎞
⎟
⎛
⎞
⎟
= 1+
= 1+
⎜
⎜
V
V
V
V
REF
OUT
REF
OUT
⎝
⎠
⎝
⎠
SHUNT REGULATOR
HIGHER CURRENT SHUNT REGULATOR
V+
ZSR***
V
V+
OUT
IN
OUT
30
Ω
Common
R1
0.01µF
V
REF
R1
R2
V
V
OUT
REF
R2
VOUT(MIN) = VREF + VREG
R1
R2
⎛
⎞
⎟
R1
R2
⎛
⎞
⎟
= 1+
⎜
V
V
REF
OUT
= 1+
⎜
V
V
REF
OUT
⎝
⎠
⎝
⎠
OUTPUT CONTROL OF A THREE TERMINAL
FIXED REGULATOR
SERIES REGULATOR
V+
V+
R1A
R1B
V
REF
OUTPUT
OUTPUT
V
INPUT
REF
V
≈
2V
ON
R2B
V
= V+
R2A
OFF
V
= 2.5V
TH
R1B
⎛
⎞
⎟
Low limit + 1+
⎜
V
REF
R2B
⎝
⎛
⎠
SINGLE SUPPLY COMPARATOR WITH
TEMPERATURE COMPENSATED THRESHOLD
R1A
⎞
Highlimit + 1+
⎜
⎟
⎠
V
REF
R2A
⎝
OVER VOLTAGE/UNDER VOLTAGE
PROTECTION CIRCUIT
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www.diodes.com
October 2011
© Diodes Incorporated
ZR431
Document number: DS33255 Rev. 6 - 2
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Ordering Information
ZR431 X XXX XX
Package
Tolerance
Packing
-7: Tape & Reel
TA : Tape & Reel
005 : 0.5%
0.1 : 1%
Blank : 2%
F : SOT23
G : SOT223
7” Tape and Reel
Package
Code
Device
Tolerance
Part Mark
Packaging
Part Number
Quantity
Suffix
ZR431F005-7
ZR431F005TA
ZR431F01-7
0.5%
0.5%
1%
F
F
F
43R
43R
43B
SOT23
SOT23
SOT23
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
-7
TA
-7
ZR431F01TA
ZR431FTA
ZR431GTA
1%
2%
2%
F
F
43B
43A
SOT23
SOT23
SOT223
3000/Tape & Reel
3000/Tape & Reel
1000/Tape & Reel
TA
TA
TA
G
ZR431
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October 2011
© Diodes Incorporated
ZR431
Document number: DS33255 Rev. 6 - 2
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Package Outline Dimensions (All Dimensions in mm)
(1) Package Type: SOT23
A
SOT23
Dim
A
B
C
D
F
G
H
J
K
Min
Max
0.51
1.40
2.50
1.03 0.915
0.60 0.535
Typ
0.40
1.30
2.40
0.37
1.20
2.30
0.89
0.45
1.78
2.80
0.013 0.10
0.903 1.10
-
C
B
2.05
3.00
1.83
2.90
0.05
1.00
0.400
0.55
0.11
-
H
M
K
K1
K1
L
M
-
D
0.45
0.085 0.18
0° 8°
0.61
F
J
L
G
α
All Dimensions in mm
(2) Package Type: SOT223
SOT223
Dim Min Max Typ
A
1.55 1.65 1.60
A1 0.010 0.15 0.05
b1
b2
C
D
E
E1
e
e1
L
2.90 3.10 3.00
0.60 0.80 0.70
0.20 0.30 0.25
6.45 6.55 6.50
3.45 3.55 3.50
6.90 7.10 7.00
—
—
—
—
4.60
2.30
0.85 1.05 0.95
0.84 0.94 0.89
Q
A
All Dimensions in mm
A1
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October 2011
© Diodes Incorporated
ZR431
Document number: DS33255 Rev. 6 - 2
ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
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
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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 © 2011, Diodes Incorporated
www.diodes.com
9 of 9
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October 2011
© Diodes Incorporated
ZR431
Document number: DS33255 Rev. 6 - 2
相关型号：
ZR431F005TA
Three Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, BIPolar, PDSO3, ROHS COMPLIANT, SOT-23, 3 PIN
DIODES
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