TL431
PROGRAMMABLE VOLTAGE REFERENCE
s
ADJUSTABLE OUTPUT VOLTAGE :
2.5 to 36V
s
SINK CURRENT CAPABILITY : 1 to 100mA
s
TYPICAL OUTPUT IMPEDANCE : 0.22Ω
s
1% AND 2% VOLTAGE PRECISION
DESCRIPTION
The TL431 is a programmable shunt voltage
reference with guaranteed temperature stability
over the entire temperature range of operation.
The output voltage may be set to any value
between 2.5V and 36V with two external resistors.
The TL431 operates with a wide current range
from 1 to 100mA with a typical dynamic
impedance of 0.22Ω.
ORDER CODE
Part
Number
TL431C/AC
TL431I/AI
Temperature
Range
0°C, +70°C
-40°C, +105°C
Package
Z
•
•
D
•
•
Z
TO92
(Plastic Package)
D
SO8
(Batwing Plastic Micropackage)
Z =
TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT)
and Ammo Pack (AP)
D =
Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS
(top view)
TO92
(Top view)
SO8
(Top view)
Cathode Anode Reference
1
2
3
8
7
6
5
1- Cathode
2- Anode
3- Anode.
4- N.C.
5- N.C.
6- Anode
7- Anode.
8- Reference
1
2
3
4
March 2002
1/10
STMICROELECTRONICS [ STMICROELECTRONICS ]
