PROGRAMMABLE PRECISION SHUNT REGULATOR
PIN CONFIGURATION
Marking
Side
2
TL431Z/AZ/CZ
TOP
TOP
1
1 2 3
3
1
2
3
TO-92 PKG
SOT-23 PKG
SOT-89 PKG
PIN DESCRIPTION
Pin No.
1
2
3
TO-92 / SOT-23 / SOT-89
Name
Reference
Anode
Cathode
Function
Reference Voltage
Ground
Input Supply Voltage
TL431Z ELECTRICAL CHARACTERISTICS
(T
A
=25℃, unless otherwise specified)
CHARACTERISTIC
SYMBOL
TEST CONDITION
TL431CZ
MIN.
2.483
2.47
2.44
TYP.
2.495
2.495
2.495
3
-1.4
-1.0
1.8
0.4
MAX.
2.507
2.52
2.55
17
-2.7
-2.0
4.0
1.2
UNIT
Reference Input Voltage
V
REF
V
KA
=V
REF
,
I
K
=10mA
TL431AZ
TL431Z
V
Deviation of
Reference Input Voltage
Ratio of Change in Reference
Input Voltage to the Change in
Cathode Voltage
Reference Input Current
Deviation of Reference Input
Current
Minimum Cathode Current
for Regulation
Off-State Cathode Current
Dynamic Impedance
ΔV
REF
/ΔT
V
KA
= V
REF
, I
K
=10mA
T
A
=Full Range
ΔV
KA
=10V -V
REF
mV
ΔV
REF
/ΔV
KA
I
REF
ΔI
REF
/ΔT
I
K
=10mA
ΔV
KA
=36V-10V
I
KA
=10mA, R
1
=10㏀, R
2
=∞
I
K
=10mA, R
1
=10㏀, R
2
=∞
T
A
=Full Range
V
KA
= V
REF
V
KA
=42V, V
REF
=0
V
KA
= V
REF
, I
K
=1mA~100mA
f
≤
1kHz
0.17
0.27
mV/V
uA
uA
I
K(MIN)
I
K
OFF
Z
KA
0.5
0.9
0.5
mA
uA
Ω
2009 – Obsolete
-3-
HTC
HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
