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Número de pieza | AZ431-A | |
Descripción | ADJUSTABLE PRECISION SHUNT REGULATORS | |
Fabricantes | Diodes | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de AZ431-A (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
No Preview Available ! AZ431-A
ADJUSTABLE PRECISION SHUNT REGULATORS
Description
Features
The AZ431-A is a three-terminal adjustable shunt regulator with
guaranteed thermal stability over a full operation range. It features
sharp turn-on characteristics, low temperature coefficient and low
output impedance, which make it ideal substitute for Zener diode in
applications such as switching power supply, charger and other
adjustable regulators.
The output voltage of AZ431-A can be set to any value between VREF
(2.5V) and the corresponding maximum cathode voltage (36V).
The AZ431-A precision reference is offered in two voltage tolerance:
0.4% and 0.8%.
This IC is available in 4 packages: TO92 (bulk or ammo packing),
SOT23, SOT25 and SOT89.
Programmable Precise Output Voltage from 2.5V to 36V
High Stability under Capacitive Load
Low Temperature Deviation: 4.5mV Typical
Low Equivalent Full-range Temperature Coefficient with
20PPM/oC Typical
Sink Current Capacity from 1mA to 100mA
Low Output Noise
Wide Operating Range of -40 to +125oC
Lead-Free Packages: TO92, SOT23, SOT25, SOT89
Totally Lead-Free; RoHS Compliant (Notes 1 & 2)
Lead-Free Packages, Available in “Green” Molding Compound:
TO92, SOT23, SOT25, SOT89
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Charger
Voltage Adapter
Switching Power Supply
Graphic Card
Precision Voltage Reference
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds
Pin Assignments
(Top View)
ANODE
3
(Top View)
(Top View)
12
REF
CATHODE
SOT23
123
REF ANODE CATHODE
SOT89 (Option 1)
123
REF ANODE CATHODE
SOT89 (Option 2)
AZ431-A
Document number: DS36721 Rev. 5 - 2
1 of 21
www.diodes.com
September 2015
© Diodes Incorporated
1 page AZ431-A
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Symbol
VREF
VREF
VREF
VKA
IREF
IREF
IKA
(Min)
IKA
(Off)
ZKA
θJC
Test
Circuit
4
Parameter
Reference Voltage
0.4%
0.8%
Deviation of Reference Voltage
4
Over Full Temperature Range
Ratio of Change in Reference
5 Voltage to the Change in
Cathode Voltage
5 Reference Current
5
Deviation of Reference Current
Over Full Temperature Range
4
Minimum Cathode Current for
Regulation
6 Off-state Cathode Current
4 Dynamic Impedance
–
–
Thermal Resistance
–
–
Conditions
VKA = VREF, IKA = 10mA
VKA = VREF
IKA = 10mA
0 to +70oC
-40 to +85oC
-40 to +125oC
VKA =
IKA = 10mA
10V to VREF
VKA =
36V to 10V
IKA = 10mA, R1 = 10KΩ, R2 =
∞
IKA = 10mA, R1 = 10KΩ
R2 = ∞, TA = -40 to +125oC
VKA = VREF
VKA = 36V, VREF = 0
VKA = VREF, IKA = 1 to 100mA,
f ≤ 1.0KHz
SOT23
SOT25
TO92
SOT89
Min
2.490
2.480
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Typ
2.500
2.500
4.5
4.5
4.5
-1.0
-0.5
0.7
0.4
0.4
0.05
0.15
135.48
135.48
81.63
29.80
Max
2.510
2.520
8
10
16
-2.7
-2.0
4
1.2
1.0
1.0
0.5
–
–
–
–
Unit
V
mV
mV/V
µA
µA
mA
µA
Ω
oC/W
AZ431-A
Document number: DS36721 Rev. 5 - 2
5 of 21
www.diodes.com
September 2015
© Diodes Incorporated
5 Page Marking Information
(1) TO92
(Top View)
XXXXX
XZ-XX1
YWWAXX
AZ431-A
First and Second Lines: Logo and Marking ID
(See Ordering Information)
Third Line: Date Code
Y: Year
WW: Work Week of Molding
A: Assembly House Code
XX: 7th and 8th Digits of Batch Number
(2) SOT23
3
(Top View)
XXX
: Logo
XXX: Marking ID
(See Ordering Information)
AZ431-A
Document number: DS36721 Rev. 5 - 2
11 of 21
www.diodes.com
September 2015
© Diodes Incorporated
11 Page |
Páginas | Total 21 Páginas | |
PDF Descargar | [ Datasheet AZ431-A.PDF ] |
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