JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
JC T
TO-92 Encapsulate Adjustable Reference Source
CJ431
Adjustable Accurate Reference Source
FEATURES
The output voltage can be adjusted to 36V
Low dynamic output impedance ,its typical value is 0.2Ω
Trapping current capability is 1 to 100mA
The typical value of the equivalent temperature factor in the
whole temperature scope is 50 ppm/
℃
The effective temperature compensation in the working
range of full temperature
Low output noise voltage
Fast on -state response
TO-92
1.REFERENCE
2.ANODE
3.CATHODE
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
Parameter
Cathode Voltage
Cathode Current Range (Continuous)
Reference lnput Current Range
Power Dissipation
Thermal Resistance from Junction to Ambient
Operating
Ambient Temperature Range
Storage
Temperature
Range
V
V
KA
I
KA
Iref
P
D
R
θJA
37
-100-+150
0.05-+10
770
162
-25~+85
-65~+150
U
V
mA
mA
mW
℃/W
℃
℃
T
opr
Tstg
T
j
Operating
Junction Temperature
150
℃
ELECTRICAL CHARACTERISTICS (Ta=25
℃
unless otherwise specified)
Parameter
Reference lnput Voltage
Deviation of
Reference Input
Voltage
Over
Temperature
(note)
Ratio Of Change in Reference lnput
Voltage to the
Change
in Cathode
Voltage
Reference lnput Current
Deviation Of Reference lnput Current
Over Full Temperature Range
Minimum
Cathode Current
for
Regulation
Off-state
Cathode
Current
Dynamic lmpedance
Symbol
V
ref
△
V
ref
/
△
T
Test
conditions
Min
2.475
Typ
2.5
4.5
-1.0
-0.5
1.5
0.4
0.45
0.05
0.15
Max
2.525
17
-2.7
-2.0
4
1.2
1.0
1.0
0.5
Unit
V
mV
mV/V
mV/V
μA
μA
mA
μA
Ω
V
KA
=V
REF
, I
KA
=10mA
V
KA
=V
REF
, I
KA
=10mA
T
MIN
≤T
a
≤T
MAX
△
V
KA
=10V~V
REF
I
KA
=10mA
△V
KA
=36V~10V
I
KA
= 10mA,R
1
=10kΩ
R
2
=∞
l
KA
=10mA, R
1
=10kΩ
R
2
=∞
T
A
=-25 to 85℃
V
KA
=V
REF
V
KA
=36V ,V
REF
=0
V
KA
=V
REF
, l
KA
=1 to 100mA
f≤1.0kHz
△
V
ref
/
△
V
KA
l
ref
△
l
ref
/
△
T
I
KA(min)
I
KA(OFF)
Z
KA
Note:T
MIN
=
-25
℃
,T
MAX
=+85
℃
Vref
CLASSIFICATION
Rank
0.5%
2.487-2.513
1%
2.475-2.525
Range
www.cj-elec.com
1
J,Aug,2016
C,Jan,2012
Typical Characteristics
Change in Reference Input
Voltage versus Cathode Voltage
I
K
=10mA
T
a
=25
℃
-4
0
△
V
ref
, REFERENCE INPUT VOLTAGE
(mV)
-8
-12
-16
-20
0
5
10
15
20
25
30
35
40
V
KA
, CATHODE VOLTAGE
(V)
Test Circuit for V
KA
=V
ref
(1+R1/R2)+R1*I
ref
1.50
Reference Input Current versus
Ambient Temperature
(uA)
I
ref
, REFERENCE INPUT CURRENT
1.25
1.00
0.75
0.50
0.25
I
K
=10mA
0.00
-40
-20
0
20
40
60
80
100
T
a
, AMBIENT TEMPERATURE
(
℃
)
Test Circuit for I
ref
Off-State Cathode Current
versus Ambient Temperature
40
(nA)
I
off
, OFF-STATE CATHODE CURRENT
35
30
25
20
15
10
5
0
-40
V
KA
=36V
V
ref
=0V
-20
0
20
40
60
80
100
T
a
, AMBIENT TEMPERATURE
(
℃
)
Test Circuit for I
off
www.cj-elec.com
3
J,Aug,2016
Jan
2
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