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TL431ACLP Datasheet(PDF) 1 Page - Texas Instruments |
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TL431ACLP Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 79 page  TL431, TL432 Precision Programmable Reference 1 Features • Reference voltage tolerance at 25°C – 0.5% (B grade) – 1% (A grade) – 2% (Standard grade) • Adjustable output voltage: Vref to 36V • Operation from −40°C to 125°C • Typical temperature drift (TL43xB) – 6mV (C temp) – 14mV (I temp, Q temp) • Low Output Noise • 0.2Ω Typical output impedance • Sink-current capability: 1mA to 100mA 2 Applications • Rack server power • Industrial AC/DC • AC inverter & VF drives • Servo drive control module • Notebook PC power adapter design Vref Input VKA IKA Simplified Schematic 3 Description The TL431 and TL432 devices are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5V) and 36V, with two external resistors. These devices have a typical output impedance of 0.2Ω. Active output circuitry provides a very sharp turn- on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as on-board regulation, adjustable power supplies, and switching power supplies. The TL432 device has exactly the same functionality and electrical specifications as the TL431 device, but has different pinouts for the DBV, DBZ, and PK packages. Both the TL431 and TL432 devices are offered in three grades, with initial tolerances (at 25°C) of 0.5%, 1%, and 2%, for the B, A, and standard grade, respectively. In addition, low output drift versus temperature verifies good stability over the entire temperature range. The TL43xxC devices are characterized for operation from 0°C to 70°C, the TL43xxI devices are characterized for operation from –40°C to 85°C, and the TL43xxQ devices are characterized for operation from –40°C to 125°C. Device Information PART NUMBER PACKAGE (PIN) (1) BODY SIZE (NOM) (2) TL43x SOT-23-3 (3) 2.90mm × 1.30mm SOT-23-5 (5) 2.90mm × 1.60mm SOIC (8) 4.90mm × 3.90mm PDIP (8) 9.50mm × 6.35mm SOP (8) 6.20mm × 5.30mm (1) For all available packages, see the orderable addendum at the end of the data sheet. (2) The package size (length × width) is a nominal value and includes pins, where applicable. TL431, TL432 SLVS543S – AUGUST 2004 – REVISED MAY 2024 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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