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TL431 Datasheet, PDF (1/16 Pages) Motorola, Inc – PROGRAMMABLE PRECISION REFERENCES | |||
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Order this document by TL431/D
Programmable
Precision References
The TL431, A, B integrated circuits are threeâterminal 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 â¦. 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.
⢠Programmable Output Voltage to 36 V
⢠Voltage Reference Tolerance: ±0.4%, Typ @ 25°C (TL431B)
⢠Low Dynamic Output Impedance, 0.22 ⦠Typical
⢠Sink Current Capability of 1.0 mA to 100 mA
⢠Equivalent FullâRange Temperature Coefficient of 50 ppm/°C Typical
⢠Temperature Compensated for Operation over Full Rated Operating
Temperature Range
⢠Low Output Noise Voltage
TL431, A, B
Series
PROGRAMMABLE
PRECISION REFERENCES
SEMICONDUCTOR
TECHNICAL DATA
LP SUFFIX
PLASTIC PACKAGE
CASE 29
(TOâ92)
123
Pin 1. Reference
2. Anode
3. Cathode
8
1
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
DM SUFFIX
PLASTIC PACKAGE
CASE 846A
(Microâ8)
ORDERING INFORMATION
Device
Operating
Temperature Range
TL431CLP, ACLP, BCLP
TL431CP, ACP, BCP
TL431CDM, ACDM, BCDM
TA = 0° to +70°C
TL431CD, ACD, BCD
TL431ILP, AILP, BILP
TL431IP, AIP, BIP
TL431IDM, AIDM, BIDM
TA = â40° to +85°C
TL431ID, AID, BID
MOTOROLA ANALOG IC DEVICE DATA
Package
TOâ92
Plastic
Microâ8
SOPâ8
TOâ92
Plastic
Microâ8
SOPâ8
Cathode 1
N/C 2
N/C 3
N/C 4
8 Reference
7 N/C
6 Anode
5 N/C
(Top View)
D SUFFIX
PLASTIC PACKAGE 8
CASE 751
(SOPâ8)
1
Cathode 1
2
Anode
3
N/C 4
8 Reference
7
Anode
6
5 N/C
(Top View)
SOPâ8 is an internally modified SOâ8 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. SOPâ8 conforms to all external
dimensions of the standard SOâ8 package.
© Motorola, Inc. 1998
Rev 6
1
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