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TL431

Motorola
Part Number TL431
Manufacturer Motorola
Description three-terminal programmable shunt regulator diode
Published Apr 16, 2005
Detailed Description Order this document by TL431/D TL431, A, B Programmable Precision References The TL431, A, B integrated circuits are th...
Datasheet PDF File TL431 PDF File

TL431
TL431

Overview
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 40° to +85 85°C TA = 0° to +70 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 ...


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