Order this document by TL431/D
TL431, A, B
Programmable
Precision References
The TL431, A, B integrated circuits are three–terminal programmable
shunt regulator diodes. These monolithic IC voltage references operate as a
low temperature coefficient zener which is programmable from Vref to 36 V
with two external resistors. These devices exhibit a wide operating current
range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22
Ω.
The
characteristics of these references make them excellent replacements for
zener diodes in many applications such as digital voltmeters, power
supplies, and op amp circuitry. The 2.5 V reference makes it convenient to
obtain a stable reference from 5.0 V logic supplies, and since the TL431, A,
B operates as a shunt regulator, it can be used as either a positive or
negative voltage reference.
Series
PROGRAMMABLE
PRECISION REFERENCES
SEMICONDUCTOR
TECHNICAL DATA
•
•
•
•
•
•
•
Programmable Output Voltage to 36 V
Voltage Reference Tolerance:
±0.4%,
Typ @ 25°C (TL431B)
Low Dynamic Output Impedance, 0.22
Ω
Typical
Sink Current Capability of 1.0 mA to 100 mA
Equivalent Full–Range Temperature Coefficient of 50 ppm/°C Typical
Temperature Compensated for Operation over Full Rated Operating
Temperature Range
Low Output Noise Voltage
LP SUFFIX
PLASTIC PACKAGE
CASE 29
(TO–92)
1
2
3
Pin 1. Reference
2. Anode
3. Cathode
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
DM SUFFIX
PLASTIC PACKAGE
CASE 846A
(Micro–8)
Cathode 1
N/C 2
N/C 3
N/C 4
(Top View)
8 Reference
7 N/C
6 Anode
5 N/C
ORDERING INFORMATION
Device
TL431CLP, ACLP, BCLP
TL431CP, ACP, BCP
TL431CDM, ACDM, BCDM
TL431CD, ACD, BCD
TL431ILP, AILP, BILP
TL431IP, AIP, BIP
TL431IDM, AIDM, BIDM
TL431ID, AID, BID
TA = –40° to +85°C
40°
85°C
TA = 0° to +70°C
70°C
Operating
Temperature Range
Package
TO–92
Plastic
Micro–8
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SOP–8)
Cathode 1
Anode
2
3
N/C 4
(Top View)
8
1
8
7
6
5
Reference
Anode
N/C
SOP–8
TO–92
Plastic
Micro–8
SOP–8
©
Motorola, Inc. 1998
Rev 6
SOP–8 is an internally modified SO–8 package. Pins 2,
3, 6 and 7 are electrically common to the die attach flag.
This internal lead frame modification decreases power
dissipation capability when appropriately mounted on a
printed circuit board. SOP–8 conforms to all external
dimensions of the standard SO–8 package.
MOTOROLA ANALOG IC DEVICE DATA
1
MOTOROLA [ MOTOROLA, INC ]
