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TL431_06 Datasheet, PDF (3/11 Pages) ON Semiconductor – Programmable Precision References
◁
TL431 / TL431A / TL431B
TM
®
Precision programmable References
PRODUCTION DATA SHEET
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply over the operating ambient temperature for the TL431C/TL431AC/TL431BC with
0°C < TA < 70°C, and TL431I/TL431AI/TL431BI with -40°C < TA < 85°C
Parameter
Reference Input
Voltage
TL431
TL431A
TL431B
TL431C
TL431I
Reference Drift
TL431AC
TL431AI
TL431BC
TL431BI
Voltage Ratio, Ref to
Cathode (Note 4)
TL431,
TL431A
TL431B
Reference Input
Current
TL431,
TL431A
TL431B
Minimum Operating Current
TL431
Off-State Cathode
Current
TL431A
TL431B
Dynamic Impedance
TL431
TL431B
Symbol
Test Conditions
VREF
ΔVREF
ΔV
KA
IREF
IMIN
IOFF
I ZKA I
IK = 10mA, VKA = VREF, TA = 25°C
IK = 10mA, VKA = VREF, TA = 25°C
IK = 10mA, VKA = VREF, TA = 25°C
IK = 10mA, VKA = VREF
IK = 10mA, VKA = VREF
IK = 10mA, VKA = VREF
IK = 10mA, VKA = VREF
IK = 10mA, VKA = VREF
IK = 10mA, VKA = VREF
IK = 10mA, VKA = 2.5V to 36V
IK = 10mA, VKA = 2.5V to 36V
VKA = VREF, TA = 25°C
VKA = VREF, TA = 25°C
VKA = VREF to 36V
VKA = VREF to 36V, TA= 25°C
VKA = VREF to 36V, TA= 25°C
VKA = VREF to 36V, TA= Operating Range
VKA = 36V, VREF = 0V, TA= 25°C
VKA = VREF, IK = 1mA to 100mA, f < 1kHz,
TA = 25°C
VKA = VREF, IK = 1mA to 100mA, f < 1kHz,
TA = 25°C
TL431/A/B
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 -2.0
2
4
1.5
1.9
0.4
1
0.1
1
0.1
1
2
0.18 0.5
0.2
0.5
0.1
0.2
Units
mV
mV
mV/V
µA
mA
µA
Ω
Note 3: These parameters are guaranteed by design.
ΔV
Note 4: REF Ratio of change in reference input voltage to the change in cathode voltage.
ΔV
KA
Copyright © 1999
Rev. 1.4, 2006-09-26
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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