TL431AU Datasheet, PDF (1/3 Pages) Micro Commercial Components – Programmable Precision Regulator

MCC
TM
Micro Commercial Components

  omponents
20736 Marilla Street Chatsworth

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TL431AU
Features
• Programmable Output Voltage 36V
• Sink Current Capability of 0.1mA to 100 mA
• Temperature Compensated for operation over full rated operating
temperature range
• Low output noise voltage and Fast turn on response
• The Reference Input Voltage tolerance is 1%
• Marking Code: 431
Maximum Ratings
Parameter
Symbol
Value
Unit
Cathode Voltage
VKA
Cathode Current Range
IK
Reference Input Current Range
IREF
Power Dissipation at 25к
PD
Thermal Resistance Junction to Ambient
R θJA
Junction Temperature
TJ
Operating Temperature
Tg
Storage Temperature Range
TSTG
37
-100~150
0.05~10
0.2
300
0--150
0---70
-55---+150
V
mA
mA
W
к/W
к
к
к
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
2.475V 2.500V 2.525V
Deviation of
reference input
voltage
Vref(dev)
3.0mV 17mV TminЉTaЉTmax
Ratio of Change in
Reference Input
Voltage to the
Change in Cathode
Voltage
ϦVref/
ϦVKA
-1.4
-2.7
ϦVKA=10VДVref
-1.0
-2.0 ϦʳVKA=36VД10V
Reference Input
Current
Iref
1.8µA
4.0µA
IKA=10mA,
R1=10KӨʿ R2=Ќ
Deviation of
Reference Input
Current Over Full
Temperature Range
ϦIref/
ϦT
0.4µA
1.2µA
IKA=10mA,
R1=10KӨʿ R2=Ќʳ
TA=full Temperature
Minimum Cathode
Current for
Regulation
IKA(min)
0. 5mA 1.0mA
Off-State Cathode
Current
IKA(off)
0.26µA 1.0µA V_KA=36V, V_REF=0V
Dynamic Impedance
ZKA
0.22Ó¨
0.5Ó¨
IKA=10 to 100mA,
fЉ1.0KHz
Programmable
Precision Regulator
SOT-23
A
D
1
2
3
CB
F
E
1. (A) ANODE
2. (R) REFERENCE
3. (K) CATHODE
G
H
J
K
DIMENSIONS
INCHES
DIM
MIN
MAX
A
.110
.120
B
.083
.098
C
.047
.055
D
.035
.041
E
.070
.081
F
.018
.024
G
.0005
.0039
H
.035
.044
J
.003
.007
K
.015
.020
MM
MIN
2.80
2.10
1.20
.89
1.78
.45
.013
.89
.085
.37
MAX
3.04
2.64
1.40
1.03
2.05
.60
.100
1.12
.180
.51
Suggested Solder
Pad Layout
.031
.800
NOTE
.035
.900
.079
2.000
inches
mm
.037
.950
.037
.950
Revision: 2
www.mccsemi.com
2003/07/28