TL431/TL432
ADJUSTABLE PRECISION SHUNT REGULATOR
TL431 *SO-8 is a future package
Document number: DS35044 Rev. 6 - 2
5 of 14
www.diodes.com
April 2012
© Diodes Incorporated
Typical Performance Characteristics
2400
2420
2440
2460
2480
2500
2520
2540
2560
2580
2600
-55 -35 -15 5 25 45 65 85 105 125
T Free Air Temperature ( C)
Reference Voltage vs. Free Air Temperature
A
°
V Reference Voltage (mV)
REF
I = 10mA
V = V
T = 25C
KA
KA RE F
A
°
0
0.05
0.1
0.15
0.
-55 -35 -15 5 25 45 65 85 105 125
T Free Air Temperature ( C)
Reference Current vs. Free Air Temperature
A
°
I Reference Current ( A)
REF
μ
R1 = 10K
R2 =
I = 10mA
Ω
∞
KA
-100
-50
0
50
100
150
-2 -1 0 1 2 3
V Cathode Voltage (V)
Cathode Current vs. Cathode Voltage
KA
I Cathode Current (mA)
KA
V = V
T = 25C
KA RE F
A
°
-100
0
100
200
-2 -1
0
12
3
V Cathode Voltage
Cathode Current vs. Cathode Voltage
KA
I
KMIN
I Cathode Current ( A)
KA
μ
V = V
T = 25C
KA RE F
A
°
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.5
-75
-50 -25 0 25 50
75
100 125
T Free Air Temperature ( C)
Off-State Cathode Current vs. Free Air Temperature
A
°
I Off-State Cathode Current ( A)
KOFF
μ
V = 36V
V= 0
KA
REF
-1.0
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-50 -25 0 25 50 75 100 125
V = 3V to 36V
KA
T Free Air Temperature (C)
Ratio of Delta Reference Voltage to Delta Cathode
Voltage vs. Free Air Temperature
A
dV /dV (mV/V)
REF KA
