PRODUCT DATABOOK 1996/1997
TL431/TL431A/TL431B
P
RECISION
P
ROGRAMMABLE
R
EFERENCES
P
R O D U C T I O N
D
A T A
S
H E E T
ELECTRICAL CHARACTERISTICS
(Note 3)
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for TL431C/TL431AC/TL431BC with 0°C
≤
T
A
≤
70°C,
TL431I/TL431AI/TL431BI with -40°C
≤
T
A
≤
85°C.)
Parameter
Reference Input Voltage
TL431
TL431A
TL431B
TL431C
TL431I
TL431AC
TL431AI
TL431BC
TL431BI
TL431, TL431A
TL431B
TL431,TL431A
TL431B
Minimum Operating Current
Off-State Cathode Current
Symbol
V
REF
Test Conditions
I
K
= 10mA, V
KA
= V
REF
, T
A
= 25°C
I
K
= 10mA, V
KA
= V
REF
, T
A
= 25°C
I
K
= 10mA, V
KA
= V
REF
, T
A
= 25°C
I
K
= 10mA, V
KA
= V
REF
I
K
= 10mA, V
KA
= V
REF
I
K
= 10mA, V
KA
= V
REF
I
K
= 10mA, V
KA
= V
REF
I
K
= 10mA, V
KA
= V
REF
I
K
= 10mA, V
KA
= V
REF
I
K
= 10mA, V
KA
= 2.5V to 36V
I
K
= 10mA, V
KA
= 2.5V to 36V
V
KA
= V
REF
, T
A
= 25°C
V
KA
= V
REF
, T
A
= 25°C
V
KA
= V
REF
, T
A
= Operating Range
V
KA
= V
REF
to 36V
V
KA
= V
REF
to 36V, T
A
= 25°C
V
KA
= V
REF
to 36V, T
A
= 25°C
V
KA
= V
REF
to 36V, T
A
= Operating Range
V
KA
= 36V, V
REF
= 0V, T
A
= 25°C
V
KA
= V
REF
, I
K
= 1mA to 100mA, f
≤
1kHz, T
A
= 25°C
V
KA
= V
REF
, I
K
= 1mA to 100mA, f
≤
1kHz, T
A
= 25°C
TL431/431A/431B
Units
Min. Typ. Max.
2440 2495 2550
2470 2495 2520
2490 2500 2510
4
17
5
30
4
17
5
30
4
15
5
20
-1.4 -2.7
-1.1
-2
2
4
1.5 1.9
2.3
0.4
1
0.1
1
0.1
1
2
0.18 0.5
0.2 0.5
0.1 0.2
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV/V
mV/V
µA
µA
µA
mA
µA
µA
µA
µA
Ω
Ω
Reference Drift
∆V
REF
∆V
KA
Voltage Ratio, Ref to Cathode
(Note 4)
Reference Input Current
I
REF
TL431
TL431A
TL431B
I
MIN
I
OFF
Dynamic Impedance
TL431
TL431B
| Z
KA
|
Note 3. These parameters are guaranteed by design.
Note 4.
∆V
REF
∆V
KA
Ratio of change in reference input voltage
to the change in cathode voltage.
Copyright © 1999
Rev. 1.3 9/99
3
MICROSEMI [ MICROSEMI CORPORATION ]
