TI Home > Semiconductors > Power Management > Voltage Reference > Shunt Voltage Reference >

TL431A-Q1 Status: ACTIVE

Automotive Catalog Adjustable Precision Shunt Regulators


      
         
Alert me about changes<br/>to this product


Datasheet

Download - PDF Icon

 TL431A-Q1
VO Adj(Min)(V)2.495  
VO Adj(Max)(V)36  
Initial Accuracy @ 25/deg C(%)1  
Temp Coeff(Typ)(ppm/ degree C)34  
Min Iz for Regulation(uA)600  
Iout/Iz(Max)(mA)100  
Pin/Package3SOT-23, 5SOT-23  
Approx. Price (US$) 0.32 | 1ku  
Operating Temp Range(Celsius)-40 to 125  
RatingAutomotive  
 Samples
 Inventory

Other qualified versions of TL431A-Q1

Version Part Number Definition
Catalog TL431A TI's standard catalog product

Customers Who Evaluated This Product Also Evaluated

  • TL431: Adjustable Precision Shunt Regulator
  • TL431A: Adjustable Precision Shunt Regulator
  • TL432A-Q1: Automotive Catalog Adjustable Precision Shunt Regulator

Product Information

Features

  • Qualified for Automotive Applications
  • Operation From -40°C to 125°C
  • Reference Voltage Tolerance at 25°C
    • 1%. . . A Grade
    • 0.5% . . . B Grade
  • Typical Temperature Drift
    • 14 mV (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.

Description

The TL431-Q1 is a three-terminal adjustable shunt regulator with specified thermal stability over applicable automotive temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. This device has a typical output impedance of 0.2 . Active output circuitry provides a sharp turn-on characteristic, making this device an excellent replacement for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
TL431AQDBVRQ1ACTIVE-40 to 1250.32 | 1kuSOT-23 (DBV) | 5 View 3000 Download CAD Format for this Symbol Download CAD Format for this Footprint
TL431AQDBZRQ1ACTIVE-40 to 1250.32 | 1kuSOT-23 (DBZ) | 3 View 3000 Download CAD Format for this Symbol Download CAD Format for this Footprint

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:42 AM GMT, 26 Nov 2009
RegionCompanyIn StockPurchase
Call**TL431AQDBVRQ1
AsiaWPI >1k
EuropeAvnet-SILICA >1k
WorldwideDigiKey >1k
TI Lead Time*: 20 WeeksTL431AQDBZRQ1
AmericasArrow >1k
Rochester Electronics >1k
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TL431AQDBVRQ1 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TL431AQDBZRQ1 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TL431A-Q1 Help

Datasheet

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TL431 Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE TI customers also evaluated this product.
TL431A Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE TI customers also evaluated this product.
TL432A-Q1 Automotive Catalog Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE TI customers also evaluated this product.

Support and Community

Customer Tags Help

Most Popular Tags for TL431A-Q1:

View All Tags

Other Support



Click Here