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TL1431

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精密度可調整 (可編程) 分流參考

現在提供此產品的更新版本

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TL431 現行 可調整精密度分流穩壓器 For cost optimized designs
最新 TLA431 現行 具有 KRA 接腳配置的所有電容器穩定精密可編程參考 Improved to all load cap stability, improved temperature drift, decreased minimum cathode current

產品詳細資料

VO (V) 2.5 Initial accuracy (max) (%) 0.4 VO adj (min) (V) 2.5 VO adj (max) (V) 36 Iz for regulation (min) (µA) 450 Reference voltage (V) adjustable Rating Automotive, Catalog Temp coeff (max) (ppm/°C) 114 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 150
VO (V) 2.5 Initial accuracy (max) (%) 0.4 VO adj (min) (V) 2.5 VO adj (max) (V) 36 Iz for regulation (min) (µA) 450 Reference voltage (V) adjustable Rating Automotive, Catalog Temp coeff (max) (ppm/°C) 114 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 150
SOIC (D) 8 29.4 mm² 4.9 x 6 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68 TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • 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)
  • 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)

The TL1431 device 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 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 TL1431C is characterized for operation over the commercial temperature range of 0°C to 70°C. The TL1431Q is characterized for operation over the full automotive temperature range of –40°C to 125°C. The TL1431M is characterized for operation over the full military temperature range of –55°C to 125°C.

The TL1431 device 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 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 TL1431C is characterized for operation over the commercial temperature range of 0°C to 70°C. The TL1431Q is characterized for operation over the full automotive temperature range of –40°C to 125°C. The TL1431M is characterized for operation over the full military temperature range of –55°C to 125°C.

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* Data sheet TL1431 Precision Programmable Reference datasheet (Rev. N) PDF | HTML 2016年 10月 4日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
Application note Setting the shunt voltage on an adjustable shunt regulator 2011年 9月 1日

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TL431CALC TL431 Design Calculator

The TL431CALC spreadsheet calculates all component parameters for any desired output voltage for the TL43x, TLV43x and TL1431. The spreadsheet includes limits for each device. Resistor values are calculated to the nearest 1% value.

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分流電壓參考
TL1431 精密度可調整 (可編程) 分流參考 TL431 可調整精密度分流穩壓器 TL432 可調精密度分流穩壓器 (反向針腳配置) TLV431 1.5% 準確度、低電壓、可調整精密度分流穩壓器
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SOIC (D) 8 Ultra Librarian
TO-92 (LP) 3 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian

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