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TL1431QPW Datasheet(PDF) 1 Page - Texas Instruments |
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TL1431QPW Datasheet(HTML) 1 Page - Texas Instruments |
1 / 26 page 1 FEATURES LP PACKAGE (TOP VIEW) CATHODE ANODE REF FK PACKAGE (TOP VIEW) 3 2 1 20 19 9 10 11 12 13 4 5 6 7 8 18 17 16 15 14 NC NC NC ANODE NC NC NC NC NC NC 1 2 3 4 8 7 6 5 CATHODE ANODE ANODE NC REF ANODE ANODE NC D PACKAGE (TOP VIEW) NC – No internal connection ANODE terminals are connected internally . 1 2 3 4 8 7 6 5 CATHODE NC NC NC REF NC ANODE NC JG OR PW PACKAGE (TOP VIEW) NC – No internal connection KTP PACKAGE (TOP VIEW) CATHODE ANODE REF DESCRIPTION/ORDERING INFORMATION TL1431 PRECISION PROGRAMMABLE REFERENCE SLVS062L – DECEMBER 1991 – REVISED OCTOBER 2007 www.ti.com 2 • 0.4% Initial Voltage Tolerance • Sink Current Capability…1 mA to 100 mA • 0.2-Ω Typical Output Impedance • Low Reference Current (REF) • Fast Turnon…500 ns • Adjustable Output Voltage…V I(ref) to 36 V 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 (see Figure 16). 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 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. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 PowerFLEX is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 1991–2007, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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