EEWORLDEEWORLDEEWORLD

Part Number

Search

ZR431N8

Description
Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, PDSO8, SOP-8
CategoryPower/power management    The power supply circuit   
File Size147KB,7 Pages
ManufacturerDiodes Incorporated
Download Datasheet Parametric Compare View All

ZR431N8 Overview

Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, PDSO8, SOP-8

ZR431N8 Parametric

Parameter NameAttribute value
MakerDiodes Incorporated
Parts packaging codeSOIC
package instructionSOP,
Contacts8
Reach Compliance Codeunknown
ECCN codeEAR99
Other featuresTHE OUTPUT VOLTAGE CAN BE SET TO ANY VALUE BETWEEN 2.5V AND 20V
Analog Integrated Circuits - Other TypesTWO TERMINAL VOLTAGE REFERENCE
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.89 mm
Humidity sensitivity level1
Number of functions1
Output times1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output voltage2.55 V
Minimum output voltage2.45 V
Nominal output voltage2.5 V
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.75 mm
surface mountYES
Maximum voltage temperature coefficient54.4 ppm/°C
Temperature levelINDUSTRIAL
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
Fine-tuning/adjustable outputYES
width3.9 mm

ZR431N8 Preview

ADJUSTABLE PRECISION
ZENER SHUNT REGULATOR
ISSUE 4 – SEPTEMBER 2000
DEVICE DESCRIPTION
The ZR431 is a three terminal adjustable
s h u n t r e g u l a t o r o ff e r i n g e x ce ll e nt
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.
The devices can be used as a replacement
for zener diodes in many applications
r e q u i r i n g a n i m p r o v e me n t in ze n e r
performance.
ZR431
FEATURES
Surface mount SO8, SOT223 and
SOT23 packages
TO92 package
2%, 1 % and 0.5% tolerance
Max. temperature coefficient 55 ppm/°C
Temperature compensated for operation
over the full temperature range
Programmable output voltage
50 A to 100mA current sink capability
Low output noise
APPLICATIONS
Shunt regulator
Series regulator
Voltage monitor
Over voltage/ under voltage protection
Switch mode power supplies
SCHEMATIC DIAGRAM
V
ref
4-189
78














V
Z
G
nd
ZR431
ABSOLUTE MAXIMUM RATING
Cathode Voltage (V
Z
)
20V
Cathode Current
150mA
Operating Temperature
-40 to 85°C
Storage Temperature
-55 to 125°C
Recommended Operating Conditions
Min Max
Cathode Voltage
Vref 20V
Cathode Current
50 A 100mA
Power Dissipation (T
amb
=25°C,T
jmax
=150°C)
SOT23
330mW
TO92
780mW
SOT223
2W
SO8
780mW
ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):T
amb
=25°C
PARAMETER
Reference Voltage
SYMBOL
2% V
ref
1%
(1)
0.5%
Deviation of Reference Input V
dev
Voltage over Temperature
Dynamic Output Impedance R
Z
(1)
0.75
0.5% SOT23 only.
For definitions of reference voltage temperature coefficient and dynamic output impedance see
NOTES following DC TEST CIRCUITS
4-190
78


Off-state Current
I
Zoff
0.1

Minimum Cathode
Current for Regulation
I
Zmin
35
50


Deviation of Reference
Input Current over
Temperature
I
ref
0.04 0.2

Reference Input Current
I
ref


Ratio of the change in
Reference Voltage to the
Change in Cathode
Voltage
V
ref
V
Z

VALUE
MIN TYP MAX UNITS CONDITIONS
2.45 2.50 2.55 V
2.475 2.50 2.525
2.489 2.50 2.513
8.0
17
mV
mV/V
mV/V
A
A
I
L
=10mA (Fig1), V
Z
=V
ref
I
L
=10mA, V
Z
=V
ref
T
a
=full range (Fig1)
V
Z
from V
ref
to 10V
I
Z
=10mA (Fig2)
V
Z
from 10V to 20V
I
Z
=10mA (Fig2)
R1=10k, R2=O/C, l
L
=10mA
(Fig2)
R1=10k, R2=O/C, I
L
=10mA
T
a
=full range (Fig2)
V
Z
=V
ref
(Fig1)
V
Z
=20V, V
ref
=0V (Fig3)
V
Z
=V
ref
(Fig1), f=0Hz
-1.85 -2.7
-1.0
-2.0
0.12 1.0
A
A
ZR431
TYPICAL CHARACTERISTICS
160
150
V
ref
=V
Z
I
Z
=10mA
Change in Reference Output Voltage (mV)
0
I
Z
=10mA
Reference Current (nA)
-5
140
130
120
110
100
-40
-10
-15
-20
-25
0
5
10
15
20
-20
0
20
40
60
80
Temperature (°C)
Cathode Voltage (V)
Reference Current v Temperature
38
Change in Vr
ef
v Cathode Voltage
100
34
32
30
28
26
24
-40
-20
0
20
40
60
80
Temperature (°C)
Cathode Current v Temperature
2.506
I
Z
=10mA
2.504
Reference Voltage (V)
2.502
2.500
2.498
2.496
2.494
2.492
2.490
-40
-20
0
20
40
60
80
Temperature (°C)
Reference Voltage v Temperature
4-191
78

Dynamic Impedance ( )

Minimum Cathode Current( A)
V
ref
=V
Z
V
ref
=V
Z
1mA
36
10
10mA
1.0
0.1
100
1k
10k
100k
1M
Frequency (Hz)
Dynamic Impedance v Frequency
SOT223
SO8/TO92
SOT23
ZR431
TYPICAL CHARACTERISTICS
60
Open Loop Voltage Gain (dB)
V
Z
40
9 F
15k
I
Z
230
20
8k25
0
100
1k
10k
100k
1M
Frequency (Hz)
I
Z
= 10mA,
T
A
= 25°C
Gain v Frequency
Test Circuit for Open Loop Voltage Gain
220
3.0
Repetitive pulse
Input Monitor
Voltage Swing (V)
2.0
Single pulse
1.0
V
Z
Pulse
Generator
50
0
5.0
0
0
0.2
0.4
INPUT
0.6
0.8
1.0
Time ( s)
Pulse Response
100
Test Circuit for Pulse Response
Input
150
Cathode Current (mA)
80
STABLE
60
STABLE
40
20
0
Load Capacitance (F)
Stability Boundary Conditions



10p
100p
1000p
0.01
0.1
1
V
ref
< V
Z
< 20, I
Z
= 10mA, T
A
= 25°C
Test Circuit for Stability Boundary Conditions
4-192
78

+
-
V
Z
T
A
= 25°C

V
Z
I
Z
10k
ZR431
APPLICATION CIRCUITS
V+
Vout
V+
Vout
R1
Vref
Vref
R2
R1
R2
Vout = 1 +
R1
R2
Vref
Vout = 1 +
R1
R2
Vref
SHUNT REGULATOR
HIGHER CURRENT SHUNT REGULATOR
V+
ZSR***
In
Out
Common
V+
Vout
30
R1
0.01µF
Vref
R1
R2
Vref
R2
Vout
Vout
MIN
= Vref + Vreg
Vout = 1 +
R1
R2
OUTPUT CONTROL OF A
THREE TERMINAL FIXED REGULATOR
Vref
Vout = 1 +
R1
R2
SERIES REGULATOR
Vref
V+
V+
OUTPUT
INPUT
V
on
V
TH
= 2.5V
2V
R1A
R1B
Vref
OUTPUT
Vref
R2A
R2B
V
off
= V+
Low limit =
1+
R1B
R2B
R1A
R2A
Vref
High limit = 1 +
Vref
SINGLE SUPPLY COMPARATOR
WITH TEMPERATURE
COMPENSATED THRESHOLD
OVER VOLTAGE / UNDER VOLTAGE
4-193
78

ZR431N8 Related Products

ZR431N8 ZR431N801
Description Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, PDSO8, SOP-8 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5V, PDSO8, SOP-8
Maker Diodes Incorporated Diodes Incorporated
package instruction SOP, SOP,
Reach Compliance Code unknown unknown
ECCN code EAR99 EAR99
Other features THE OUTPUT VOLTAGE CAN BE SET TO ANY VALUE BETWEEN 2.5V AND 20V THE OUTPUT VOLTAGE CAN BE SET TO ANY VALUE BETWEEN 2.5V AND 20V
Analog Integrated Circuits - Other Types TWO TERMINAL VOLTAGE REFERENCE TWO TERMINAL VOLTAGE REFERENCE
JESD-30 code R-PDSO-G8 R-PDSO-G8
JESD-609 code e3 e0
length 4.89 mm 4.89 mm
Humidity sensitivity level 1 1
Number of functions 1 1
Output times 1 1
Number of terminals 8 8
Maximum operating temperature 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C
Maximum output voltage 2.55 V 2.525 V
Minimum output voltage 2.45 V 2.475 V
Nominal output voltage 2.5 V 2.5 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP
Package shape RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) 260 NOT SPECIFIED
Certification status Not Qualified Not Qualified
Maximum seat height 1.75 mm 1.75 mm
surface mount YES YES
Maximum voltage temperature coefficient 54.4 ppm/°C 54.4 ppm/°C
Temperature level INDUSTRIAL INDUSTRIAL
Terminal surface MATTE TIN Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING
Terminal pitch 1.27 mm 1.27 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature 40 NOT SPECIFIED
Fine-tuning/adjustable output YES YES
width 3.9 mm 3.9 mm
I have a humble question. Has anyone used DSP when solving control problems? Does it have any advantages?
[i=s]This post was last edited by paulhyde on 2014-9-15 09:03[/i] I feel that DSP is very difficult, but our instructor asked us to learn about this chip. I am really confused and would like some advi...
肖申克v洋葱 Electronics Design Contest
During electrical inspection, Warning Unconnected Power Object On Net GND appears
I changed the pin definition but it still doesn't work, and then I connected the ground wire. I tried adding a power supply but it still didn't solve the problem. I hope someone can give me some advic...
卜.乂 PCB Design
PB download mirror problem
When downloading the image in PB, if you choose to go through ethernet, does the communication between the PC and the target machine rely on the TCP/IP protocol or through KITL?...
fanfangzhang Embedded System
Recommended: FPGA vivado burns bin format files into flash
[table] [tr][td] Hello everyone, it's time for daily learning again. Today we will talk about how to burn bin format files into flash using FPGA design and operation software vivado. 1. Click bitstrea...
大辉哥0614 FPGA/CPLD
How to understand the parameters of the second bus chip PB620?
I am currently working on a sensor project. The load capacity and distance of the RS485 communication are not satisfactory. I found a chip called PB620. The manual says 256 slave nodes and 3000m dista...
powerbus stm32/stm8

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 860  1188  2883  972  1593  18  24  59  20  33 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号