TL1431-EP Enhanced Product Precision Adjustable (Programmable) Shunt Reference | TI.com

TL1431-EP (ACTIVE)

Enhanced Product Precision Adjustable (Programmable) Shunt Reference

 

Description

The TL1431-EP device is a precision-programmable reference with specified thermal stability over the military temperature range. The output voltage can be set to any value from VI(ref) (approximately 2.5 V) to 36 V with two external resistors (see ). This device has a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turnon characteristic, making the device an excellent replacement for Zener diodes and other types of references in applications such as onboard regulation, adjustable power supplies, and switching power supplies.

Features

  • 0.4% Initial Voltage Tolerance
  • 0.2-Ω Typical Output Impedance
  • Fast Turnon: 500 ns
  • Sink Current Capability: 1 to 100 mA
  • Low Reference Current (REF)
  • Adjustable Output Voltage: VI(ref) to 36 V
  • Supports Defense, Aerospace, and Medical Applications
    • Controlled Baseline
    • One Assembly and Test Site
    • One Fabrication Site
    • Available in Military (–55°C to 125°C)
      Temperature Range
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

Parametrics

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Part number Order Reference voltage VO (V) VO adj (Min) (V) VO adj (Max) (V) Initial accuracy (Max) (%) Temp coeff (Max) (ppm/ degree C) Rating Operating temperature range (C) Iz for regulation (Min) (uA) Iout/Iz (Max) (mA) Package Group Iref (uA) I I(dev) (uA)
TL1431-EP Order now Adjustable       2.5     36     0.4     114     HiRel Enhanced Product     -40 to 125
-55 to 125    
450     100     SOIC | 8        
TL1431 Order now Adjustable     2.5     2.5     36     0.4     114     Catalog     -40 to 125
0 to 70    
450     150     SOIC | 8
TO-92 | 3
TSSOP | 8    
3     1.2    
TL1431-Q1 Order now Adjustable       2.5     36     0.4     114     Automotive     -40 to 125     450     100     SOIC | 8     4     2    
TL1431-SP Order now Adjustable       2.5     36     0.4     114     Space     -55 to 125     450     100     CDIP | 8
CFP | 10