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TL431SN3 Datasheet, PDF (2/8 Pages) Cystech Electonics Corp. – Adjustable Precision Shunt Regulators
CYStech Electronics Corp.
Spec. No. : C502N3
Issued Date : 2011.05.24
Revised Date : 2013.09.25
Page No. : 2/ 8
Absolute Maximum Ratings
(Operating temperature range applies unless otherwise specified)
Characteristics
Cathode Voltage
Cathode Current Range (Continuous)
Reference Input Current Range
Power Dissipation
Operating Temperature Range
Junction Temperature Range
Storage Temperature Range
Symbol
Value
Unit
VKA
37
V
IK
-100~+150
mA
IREF
0.05~+10
mA
PD
300
mW
Topr
-40~+125
°C
Tj
-40~+150
°C
Tstg
-65~+150
°C
Functional Block Diagram
Functional Block Diagram :
Cathode
Reference
VREF
+
-
Anode
& Symbol
Symbol :
Cathode
Reference
Anode
Test Circuits
II
II
IN
VZ
IN
VZ
IN
VZ
IREF
IZ
VREF
R1 IREF
IZ
R2 VREF
Fig1. Test Circuit for VZ=VREF
Fig 2. Test Circuit for VZ>VREF
Fig3. Test Circuit for Off-State
Note : VZ=VREF(1+R1/R2)+IREFxR1
Current
TL431SN3
CYStek Product Specification