Order this document by TL431/D
The TL431, A, B integrated circuits are three–terminal programmable
shunt regulator diodes. These monolithic IC voltage references operate as a
PROGRAMMABLE
PRECISION REFERENCES
low temperature coefficient zener which is programmable from V to 36 V
ref
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.
SEMICONDUCTOR
TECHNICAL DATA
LP SUFFIX
PLASTIC PACKAGE
CASE 29
• 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
Pin 1. Reference
2. Anode
(TO–92)
3. Cathode
1
2
3
• Equivalent Full–Range Temperature Coefficient of 50 ppm/°C Typical
P SUFFIX
PLASTIC PACKAGE
CASE 626
• Temperature Compensated for Operation over Full Rated Operating
Temperature Range
8
• Low Output Noise Voltage
1
DM SUFFIX
PLASTIC PACKAGE
CASE 846A
8
1
(Micro–8)
1
2
3
4
8
7
6
5
Cathode
N/C
Reference
N/C
N/C
Anode
N/C
N/C
(Top View)
D SUFFIX
PLASTIC PACKAGE
CASE 751
8
1
(SOP–8)
ORDERING INFORMATION
Operating
1
8
Temperature Range
Device
Package
TO–92
Plastic
Cathode
Reference
Anode
2
7
6
5
TL431CLP, ACLP, BCLP
TL431CP, ACP, BCP
TL431CDM, ACDM, BCDM
TL431CD, ACD, BCD
TL431ILP, AILP, BILP
TL431IP, AIP, BIP
Anode
3
4
N/C
N/C
T
A
= 0° to +70°C
Micro–8
SOP–8
TO–92
Plastic
(Top View)
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
dissipationcapability when appropriately mounted on a
printed circuit board. SOP–8 conforms to all external
dimensions of the standard SO–8 package.
T
A
= –40° to +85°C
TL431IDM, AIDM, BIDM
TL431ID, AID, BID
Micro–8
SOP–8
Motorola, Inc. 1998
Rev 6
1
MOTOROLA ANALOG IC DEVICE DATA