clear gifTL431, Status:ACTIVE
Adjustable Precision Shunt Regulator
 
clear gif
See Also:
TLVH431The TLVH431 devices operate from a lower voltage 1.24 V than the TL431 and TL1431 shunt-regulator references
- See All Related Products
Product Features and DescriptionFeaturesRequest Free SamplesSamplesTechnical Documents: app notes, user guides, models, and product bulletinsTechnical Documents
Quality: Product Contents, MTBF/FIT Rate and Moisture SensitivityQuality & Pb-Free DataPrice and Packaging InformationPricing/PackagingDownload Application NotesApplication Notes
related productsRelated ProductsInventory, Leadtime, and AvailabilityInventoryModels: BSDL, IBIS, or SPICESimulation Models
Tools & Software: EVMs, CCStudio, and developerTools & Software Download CAD Design ToolsSymbols/FootprintsAccess Reference DesignsReference Designs

 Datasheet
Download Datasheet
TL431, TL431A, TL431B, TL432, TL432A, TL432B (Rev. J) (tl431.pdf, 1349 KB)
15 Dec 2005 Download

TL431TL431A TL431B 
VO Adj(Min)(V)2.495  2.495  2.495  
VO Adj(Max)(V)36  36  36  
Initial Accuracy @ 25/deg C(%)2  1  0.5  
Temp Coeff(Typ)(ppm/ degree C)34  34  34  
Min Iz for Regulation(uA)600  600  600  
Iout/Iz(Max)(mA)100  100  100  
Pin/Package3SOT-23,3SOT-89,3TO-92,5SOT-23,6SC70,8SO,8SOIC,8PDIP,8TSSOP  3SOT-23,3SOT-89,3TO-92,5SOT-23,6SC70,8PDIP,8SO,8SOIC,8TSSOP  3SOT-23,3SOT-89,5SOT-23,8PDIP,6SC70,8SO,8SOIC,8TSSOP,3TO-92  
Approx. Price (US$) 0.14 | 1ku   0.14 | 1ku   0.20 | 1ku  
Operating Temp Range(Celsius)-40 to 125,-40 to 85,0 to 70  -40 to 85,0 to 70,-40 to 125  -40 to 125,-40 to 85,0 to 70  
RatingMilitary  Catalog  Catalog  
 SamplesSamplesSamples
 InventoryInventoryInventory

Product Information
Back to TopFeatures
  • Operation From –40°C to 125°C
  • Reference Voltage Tolerance at 25°C
    • 0.5% . . . B Grade
    • 1%. . . A Grade
    • 2% . . . Standard Grade
  • Typical Temperature Drift (TL431B)
    • 6 mV (C-Temp)
    • 14 mV (I-Temp, Q-Temp)
  • Low Output Noise
  • 0.2- Typical Output Impedance
  • Sink-Current Capability . . . 1 mA to 100 mA
  • Adjustable Output Voltage . . . Vref to 36 V

PowerFLEX is a trademark of Texas Instruments.

Back to TopDescription

The TL431 and TL432 are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.2 . Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. The TL432 has exactly the same functionality and electrical specifications as the TL431, but has different pinouts for the DBV, DBZ, and PK packages.

Both the TL431 and TL432 devies are offered in three grades, with initial tolerances (at 25°C) of 0.5%, 1%, and 2%, for the B, A, and standard grade, respectively. In addition, low output drift vs temperature ensures good stability over the entire temperature range.

The TL43xxC devices are characterized for operation from 0°C to 70°C, the TL43xxI devices are characterized for operation from –40°C to 85°C, and the TL43xxQ devices are characterized for operation from –40°C to 125°C.

Analog eLab(TM) Design Center

Customers Who Evaluated This Product Also Evaluated...

These Alternative Products:

  • TLV431B: Low-Voltage Adjustable Precisi...
  • TL431A: Adjustable Precision Shunt Reg...
  • TLV431: Low-Voltage Adjustable Precisi...

These Complementary Products:

What's This?

Customer Tags

No Tags are Available for this Part Number




Refine Your Selection

- Selection Guides

- Analog & Mixed-Signal: Shunt Voltage References


Support

- KnowledgeBase

- Contact Technical Support

- TI Cross Reference

- Training

- Part Marking Lookup

Pricing/Packaging/CAD Design Tools/Samples
Back to TopPricePackagingCAD Design ToolsSamples
DeviceStatusReplaced ByTemp (oC)Budget Price
($US) | QTY
Industry Standard
(TI Pkg)
| Pins
Top Side MarkingStandard Pack Quantity | Package CarrierSymbolsFootprintsSamples
TL431CDACTIVE 0 to 700.14 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CDBVRACTIVE 0 to 700.14 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CDBVRE4ACTIVE 0 to 700.14 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CDBVRG4ACTIVE 0 to 700.14 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CDBVTACTIVE 0 to 700.41 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CDBVTE4ACTIVE 0 to 700.41 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CDBVTG4ACTIVE 0 to 700.41 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CDBZRACTIVE 0 to 700.14 | 1kuSOT-23 (DBZ) | 3 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CDBZRG4ACTIVE 0 to 700.14 | 1kuSOT-23 (DBZ) | 3 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CDBZTACTIVE 0 to 700.41 | 1kuSOT-23 (DBZ) | 3 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CDBZTG4ACTIVE 0 to 700.41 | 1kuSOT-23 (DBZ) | 3 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CDG4ACTIVE 0 to 700.14 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CDRACTIVE 0 to 700.14 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CDRG4ACTIVE 0 to 700.14 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CKTPROBSOLETE 0 to 700.18 | 1kuPFM (KTP) | 2     Download CAD Format for this FootprintNot Available
TL431CLPACTIVE 0 to 700.14 | 1kuTO-92 (LP) | 3 View 1000 | BULK Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CLPB-TDJOBSOLETE 0 to 75 TO-92 (LP) | 3 View    Not Available
TL431CLPMACTIVE 0 to 700.14 | 1kuTO-92 (LP) | 3 View 2000 | AMMO Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CLPRACTIVE 0 to 700.14 | 1kuTO-92 (LP) | 3 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CPACTIVE 0 to 700.18 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CPE4ACTIVE 0 to 700.18 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CPKACTIVE 0 to 700.22 | 1kuSOT-89 (PK) | 3  1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CPKG3ACTIVE 0 to 700.22 | 1kuSOT-89 (PK) | 3  1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
TL431CPSLEOBSOLETETL431CPSR0 to 70 SO (PS) | 8 View    Download CAD Format for this FootprintReplaced by TL431CPSR
TL431CPSRACTIVE 0 to 700.14 | 1kuSO (PS) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CPSRG4ACTIVE 0 to 700.14 | 1kuSO (PS) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CPWACTIVE 0 to 700.14 | 1kuTSSOP (PW) | 8 View 150 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL431CPWE4ACTIVE 0 to 700.14 | 1kuTSSOP (PW) | 8 View 150 | TUBE Download CAD Format for this Symbol