tl431bu Micro Commercial Components, tl431bu Datasheet
tl431bu
Manufacturer Part Number
tl431bu
Description
Programmableprecision Regulator
Manufacturer
Micro Commercial Components
Datasheet
1.TL431BU.pdf
(3 pages)
Features
•
•
•
•
•
•
Recommended Operating Conditions
Electrical Characteristics @ 25°C Unless Otherwise Specified
Revision: 1
Maximum Ratings
Cathode Voltage
Cathode Current Range
Reference Input Current Range
Power Dissipation at 25
Thermal Resistance Junction to Ambient
Operating Temperature
Storage Temperature Range
Cathode Voltage
Cathode Current Range
Parameter
Reference Input
Voltage
Deviation of
reference input
voltage
Ratio of Change in
Reference Input
Voltage to the
Change in Cathode
Voltage
Reference Input
Current
Deviation of
Reference Input
Current Over Full
Temperature Range
Minimum Cathode
Current for
Regulation
Off-State Cathode
Current
Dynamic Impedance
Micro Commercial Components
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
M C C
Parameter
Parameter
V
I
Sym
KA(min)
I
KA
V
ref(dev)
Z
I
V
V
ref
I
KA
ref
(off)
ref
T
ref
KA
/
/
2.487V
Min
www.mccsemi.com
TM
Symbol
Sym
R
T
V
I
V
P
REF
T
I
STG
I
2.500V
0. 5mA
0.26µA
0.22
θJA
3.0mV
omponents
20736 Marilla Street Chatsworth
!"#
$
% !"#
KA
K
KA
K
1.8µA
0.4µA
D
opr
Typ
-1.4
-1.0
2.512V
1.0mA
V
17mV
4.0µA
1.2µA
1.0µA
0.5
Min
Max
1.0
-2.7
-2.0
REF
-55---+150
-100~150
0.05~10
Value
0---70
300
0.2
37
V
V
I
R
I
R
T
V
I
f 1.0KHz
KA
KA
KA
KA
KA
A
KA
1
1
T
V
=10K
=10K
=full Temperature
=10mA,
=10mA,
=10 to 100mA,
=V
=V
Max
Test conditions
V
100
=36V, V
min
KA
36
KA
=10V V
REF
REF
=36V 10V
Ta T
, I
, I
R
R
REF
KA
KA
2
2
Unit
=
=
mA
mA
=10mA
=10mA
max
=0V
W
ref
V
Unit
mA
/W
V
G
DIM
C
D
G
H
A
B
E
F
J
K
Precision Regulator
F
K
INCHES
2
Programmable
.0005
.110
.083
.047
.035
.070
.018
.035
.003
.015
MIN
.035
.900
A
E
1
.037
.950
TL431BU
Suggested Solder
D
3
.031
.800
.0039
MAX
.120
.098
.055
.041
.081
.024
.044
.007
.020
Pad Layout
SOT-23
DIMENSIONS
.950
.037
H
C
B
2.80
2.10
1.20
1.78
.013
.085
MIN
.89
.45
.89
.37
MM
J
.079
2.000
1. (A) ANODE
2. (R) REFERENCE
3. (K) CATHODE
MAX
3.04
2.64
1.40
1.03
2.05
.100
1.12
.180
.60
.51
2008/01/30
inches
mm
NOTE
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tl431bu Summary of contents
Page 1
... R =10K R = 0.4µA 1.2µ =full Temperature A 0. 5mA 1.0mA V =36V, V =0V 0.26µA 1.0µA KA REF I =10 to 100mA, KA 0.22 0.5 f 1.0KHz TL431BU Programmable Precision Regulator SOT- (A) ANODE 2. (R) REFERENCE 3. (K) CATHODE DIMENSIONS INCHES MM DIM MIN MAX MIN ...
Page 2
... TL431BU Figure 1. Test Circuit for ° Figure 4. Cathode Current versus Cathode Voltage Figure 6. Reference Input Voltage versus Ambient Temperature www.mccsemi.com Revision Figure 2. Test Circuit for V ref Vref Max = 2525mV Vref Typ = 2500mV Vref Min = 2475mV ° Micro Commercial Components > ...
Page 3
... Figure 10. Dynamic Impedance versus Frequency _ Figure 12. Open–Loop Voltage Gain versus Frequency www.mccsemi.com Revision: 1 ° _ ∆ µ Micro Commercial Components Figure 9. Off–State Cathode Current versus Ambient Temperature ∆ ≤ _ Figure 11. Dynamic Impedance versus Ambient Temperature ° Figure 13. Spectral Noise Density TM ...