Absolute maximum ratings
Characteristic
Cathode to Anode voltage
Cathode current
Reference input current
Power Dissipation
Junction Temperature
Operating temperature range
Storage temperature range
Symbol
VKA
IK
Iref
PD
TJ
Topr
Tstg
Rating
37
150
10
625
150
-40 ~ +85
-55 ~ +150
SL431x
[Ta=25℃]
Unit
V
mA
mA
mW
℃
℃
℃
Recommended operating conditions
Characteristic
Symbol
Cathode to Anode voltage
VKA
Cathode current
IK
Rating
Min.
Max.
Vref
36
1
100
Unit
V
mA
Electrical Characteristics (Ta=25℃, unless otherwise noted.)
Characteristic
Symbol
Condition
Min. Typ. Max. Unit
Reference voltage (Fig.1)
Reference input voltage
deviation over temperature
(Fig.1, Note1,2)
Ratio of delta reference input
voltage to delta cathode
voltage (Fig.2)
Vref
∆Vref
∆Vref
∆VKA
VKA=Vref, IK=10mA
SL431B 2.482
2.508
2.495
V
SL431A 2.470
2.520
VKA=Vref , IK=10mA
@ -40˚C ≤ Ta ≤ 85˚C
-
7
30 mV
IK=10mA
△VKA=VKA(10V) –Vref
-
Vref ≤ VKA ≤ 36V △VKA=VKA(36V)-VKA(10V)
-
-1.2 -2.7
mV/V
-0.7 -2.0
Reference current (Fig.2)
Iref
IK=10mA
R1=10KΩ, R2=∞
- 1.8 4.0 µΑ
Reference input current
deviation over temperature
(Fig.2, Note 1,2)
IK=10mA
∆Iref
R1=10KΩ, R2=∞
@ -40˚C ≤ Ta ≤ 85˚C
- 0.4 2.5 µΑ
Minimum cathode current
for regulation
IK(MIN)
VKA=Vref
- 0.35 1.0 mΑ
Off-state cathode current
(Fig.3)
IK(off)
VKA=36V, Vref=0V
- 2.7 1000 nA
Dynamic impedance
(Fig.1, Note3)
ZKA
VKA=Vref, f ≤ 1.0KHz
1.0mA ≤ IK ≤ 100mA
- 0.15 0.5
Ω
KSD-I0A004-000
2