TL431BU Datasheet, PDF (1/4 Pages) Micro Commercial Components – Programmable Precision Regulator

MCC
TM
Micro Commercial Components

  omponents
20736 Marilla Street Chatsworth

  !"#
$ %    !"#
TL431BU
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
• 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 0.5%
• Marking Code: 431
Programmable
Precision Regulator
SOT-23
A
D
Maximum Ratings
Parameter
Symbol
Value
Unit
Cathode Voltage
Cathode Current Range
Reference Input Current Range
Power Dissipation at 25к
Thermal Resistance Junction to Ambient
Operating Temperature
Storage Temperature Range
VKA
IK
IREF
PD
RθJA
Topr
TSTG
37
-100~150
0.05~10
0.2
300
0---70
-55---+150
V
mA
mA
W
к/W
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
2.487V 2.500V 2.512V V_KA=V_REF, I_KA=10mA
Deviation of
reference input
voltage
Ratio of Change in
Reference Input
Voltage to the
Change in Cathode
Voltage
Vref(dev)
ϦVref/
ϦVKA
3.0mV
-1.4
17mV
-2.7
V_KA=V_REF, I_KA=10mA
TminЉTaЉTmax
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
1
2
3
CB
F
E
1. (A) ANODE
2. (R) REFERENCE
3. (K) CATHODE
G
H
J
K
DIMENSIONS
INCHES
MM
DIM
MIN
MAX
MIN
MAX
A
.110
.120
2.80
3.04
B
.083
.098
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: A
www.mccsemi.com
1 of 4
2011/01/01