TL1431-SP Precision Adjustable (Programmable) Shunt Reference | TI.com

TL1431-SP (ACTIVE)

Precision Adjustable (Programmable) Shunt Reference

 

Description

The TL1431 is a precision programmable reference with specified thermal stability over automotive, commercial, and military temperature ranges. The output voltage can be set to any value between VI(ref) (approximately 2.5 V) and 36 V with two external resistors. 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.

The TL1431 is characterized for operation over the full military temperature range of –55°C to 125°C.

Features

  • QMLV Qualified to 100k Rad RHA,
    SMD 5962R99620
  • 0.4% Initial Voltage Tolerance
  • 0.2-Ω Typical Output Impedance
  • Fast Turnon…500 ns
  • Sink Current Capability…1 mA to 100 mA
  • Low Reference Current (REF)
  • Adjustable Output Voltage…VI(ref) to 36 V

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Parametrics Compare all products in Shunt voltage references

 
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-SP TL1431 TL1431-EP TL1431-Q1
Adjustable     Adjustable     Adjustable     Adjustable    
  N/A       N/A    
2.5     2.5     2.5     2.5    
36     36     36     36    
0.4     0.4     0.4     0.4    
114     114     114     114    
Space     Catalog     HiRel Enhanced Product     Automotive    
-55 to 125     -40 to 125
0 to 70    
-40 to 125
-55 to 125    
-40 to 125    
450     450     450     450    
100     150     100     100    
CDIP | 8
CFP | 10    
SOIC | 8
TO-92 | 3
TSSOP | 8    
SOIC | 8     SOIC | 8    
  3       4    
  1.2       2