CL2431
CORPORATION
ELECTRICAL CHARACTERISTICS
Electrical characteristics are guaranteed over full junction temperature range (0 to 105
o
C). Ambient temperature must be derated based on
power dissipation and package thermal characteristics. The conditions are: V
KA
= V
REF
and I
K
= 10mA unless otherwise stated.
SYMBOL
V
REF
TC
∆V
REF
∆V
K
I
REF
∆I
REF
I
K(MIN)
I
K(OFF)
Z
KA
PARAMETER
Reference Voltage
∆V
REF
with Temp.*
Ratio of Change in V
REF
to
Cathode Voltage
Reference Input Current
I
REF
Temp Deviation
Min I
K
for Regulation
Off State Leakage
Dynamic Output Impedance
–2.7
–2
MIN
2.490
2.470
TYP
2.500
2.500
0.6
–1.01
–0.4
0.7
0.4
0.4
0.04
0.15
0.3
4
1.2
1
250
0.5
µA
µA
mA
nA
Ω
2
2
1
3
1
V
REF
= 0V, V
KA
= 18V
f
≤
1kHz, I
K
= 1 to 100mA
Over Temp.
MAX
2.515
2.520
0.2
UNIT
V
V
mV/
o
C
mV/V
CIRCUIT
1
1
1
2
V
REF
to 10V
10V to 18V
TEST CONDITION
T
A
= 25
o
C, 0.5% CL2431A
TA = 25
o
C, 1.0% CL2431
*CALCULATING AVERAGE TEMPERATURE COEFFICIENT (TC)
ppm
mV
0
0
2000
0.2
TEST CIRCUITS
V
IN
V
KA
= V
REF
I
REF
TEST CIRCUIT 1
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
%
0
–5
–10
∆T
∆V
REF
•
TC in
mV
/
o
C
=
∆V
REF
(
mV)
∆T
A
•
TC in
%
/ C
=
0
15
30
45
60
75
90 105
o
∆V
REF
o
V
REF
at
25
C
∆T
A
x 100
TEMPERATURE (˚C)
0.019 mV/˚C
0.001 %/˚C
7.6 ppm/˚C
1J-28
•
TC in
ppm
/
o
C
=
∆V
REF
o
V
REF
at 25 C
∆T
A
x 10
6
V
IN
V
KA
V
IN
V
KA
I
K
I
K
R
1
(V
REF
)
R
2
I
REF
I
K(OFF)
1G-38
1G-39
1G-40
TEST CIRCUIT 2
TEST CIRCUIT 3
CALOGIC [ CALOGIC, LLC ]
