TL431AM (chips)
RECOMMENDED OPERATING CONDITIONS
Characteristic
Cathode Voltage
Cathode Current
Symbol
V
KA
I
K
Test Condition
Min
V
REF
0.5
Typ
Max
40
100
Unit
V
mA
ELECTRICAL CHARACTERISTICS
(T
a
= 25 C, V
KA
= V
REF
, I
K
= 10mA unless otherwise specified)
Characteristic
Reference Input Voltage
Deviation of Reference Input Voltage
Over Full Temperature Range
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
Symbol
V
REF
V
REF(dev)
Test Condition
V
KA
= V
REF
, I
K
= 10mA
T
min
≤
Ta
≤
T
max
∆V
KA
= 10V-V
REF
∆V
KA
= 36V- 10V
I
REF
I
REF(dev)
R
1
= 10KΩ, R
2
=
∞
R
1
= 10KΩ, R
2
=
∞
Min
2.475
Typ
2.495
3
-1.4
-1.0
1.8
0.4
Max
2.505
17
-2.7
mV/V
-2.0
4
1.2
µA
µA
Unit
V
mV
o
∆
V
REF
∆
V
K A
I
K(min)
I
K(off)
Z
KA
V
KA
= 40 V, V
REF
= 0
I
K
= 1mA to 100 mA , f
≤
1.0KHz
0.25
0.26
0.22
0.5
0.9
0.5
mA
µA
Ω
TEST CIRCUITS
Fig.1. Test Circuit for V
KA
= V
REF
Fig.2. Test Circuit for V
KA
≥
V
REF
INPUT
Fig.3. Test Circuit for I
off
V
KA
I
K(OFF)
TL431
TL431
TL431
BT432
V
KA
≥
V
RE
2
ESTEK [ Estek Electronics Co. Ltd ]
