Precision Regulator. TL431K Datasheet

TL431K Regulator. Datasheet pdf. Equivalent

Part TL431K
Description Programmable Precision Regulator
Feature MCC TM Micro Commercial Components   omponents 20736 Marilla Street Chatsworth .
Manufacture MCC
Datasheet
Download TL431K Datasheet

SMD Type Adjustable Accurate Reference Source TL431K (KL431K TL431K Datasheet
Elektronische Bauelemente TL431K Adjustable Shunt Regulator TL431K Datasheet
MCC TM Micro Commercial Components   ompone TL431K Datasheet
Recommendation Recommendation Datasheet TL431K Datasheet




TL431K
MCC
TM
Micro Commercial Components
  omponents
20736 Marilla Street Chatsworth

  !"#
$ %    !"#
TL431K
Features
Lead Free Finish/RoHS Compliant ("P" Suffix designates
RoHS Compliant. See ordering information)
Epoxy meets UL 94 V-0 flammability rating
Moisure Sensitivity Level 1
Programmable Output Voltage 36V
Sink Current Capability of 0.1mA to 100 mA
The typical value of the equivalent temperature factor in the whole
temperature scope is 50 ppm/oC
Low output noise voltage and Fast turn on response
The Reference Input Voltage tolerance is 0.5%
Marking Code: 431K
Halogen free available upon request by adding suffix "-HF"
Maximum Ratings
Parameter
Symbol
Value
Unit
Cathode Voltage
Cathode Current Range
Reference Input Current Range
Power Dissipation at 25к
Operating Temperature
Storage Temperature Range
VKA
37
V
IK
-100~150
mA
IREF
0.05~10
mA
PD
0.3
W
Topr
-40---85
к
TSTG
-65---+150
к
Programmable
Precision Regulator
SOT-23
A
D
1
2
3
CB
F
E
G
1. (A) ANODE
2. (R) REFERENCE
3. (K) CATHODE
H
J
Recommended Operating Conditions
Parameter
Sym
Min
Max
Unit
Cathode Voltage
VKA
VREF
36
V
Cathode Current Range
IK
1.0
100
mA
Electrical Characteristics @ 25°C Unless Otherwise Specified
Parameter
Sym
Min
Typ
Max
Test conditions
Reference Input
Voltage
Vref
2.482V 2.500V 2.508V VKA=VREF, IKA=10mA
Deviation of
reference input
voltage
Ratio of Change in
Reference Input
Voltage to the
Change in Cathode
Voltage
ϦVref /
ϦT
ϦVref/
ϦVKA
4.5mV
-1.0
17mV
-2.7
VKA=VREF, IKA=10mA
TminЉTaЉTmax
ϦVKA=10VДVref
-0.5
-2.0 ϦʳVKA=36VД10V
Reference Input
Current
Deviation of
Reference Input
Current Over Full
Temperature Range
Iref
ϦIref/
ϦT
1.5µA
0.4µA
4.0µA
1.2µA
IKA=10mA,
R1=10KӨʿ R2=Ќ
IKA=10mA,
R1=10KӨʿ R2=Ќʳ
TA=full Temperature
Minimum Cathode
Current for
Regulation
IKA(min)
0. 45mA 1.0mA
Off-State Cathode
Current
IKA(off)
0.05µA 0.5µA VKA=40V, VREF=0V
Dynamic Impedance
ZKA
0.15 Ө
0.5 Ө
IKA=1 to 100mA,
fЉ1.0KHz
K
DIMENSIONS
INCHES
MM
DIM
MIN
MAX
MIN
MAX
A
.110
.120
2.80
3.04
B
.083
.104
2.10
2.64
C
.047
.055
1.20
1.40
D
.035
.041
.89
1.03
E
.070
.081
1.78
2.05
F
.018
.024
.45
.60
G
.0005
.0039
.013
.100
H
.035
.044
.89
1.12
J
.003
.007
.085
.180
K
.015
.020
.37
.51
Suggested Solder
Pad Layout
.031
.800
NOTE
.035
.900
.079
2.000
inches
mm
.037
.950
.037
.950
Revision: B
www.mccsemi.com
1 of 6
2013/01/01



TL431K
TL431K
Figure 1. Test Circuit for VKA = Vref
Input
IK VKA
Vref
MCC
TM
Micro Commercial Components
Figure 2. Test Circuit for VKA > Vref
Figure 3. Test Circuit for Ioff
Input
VKA
Input
IK
R1 Iref
R2
Vref
ǒ Ǔ + ) ) VKA
Vref 1
R1
R2
Iref S R1
VKA
Ioff
APPICATION INFORMATION
1. Shunt Regulator
Note A : R Should provide cathode current 1mA to the TL431 at minimum VI(BATT)
2. Output Control of a Three-Terminal Fixed Regulator
Revision: B
www.mccsemi.com
2 of 6
2013/01/01





@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)