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ATL432

AKTIV

Programmierbarer Präzisions-Shunt-Regler, 2,5 V

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Dieses Produkt ist weiterhin für Bestandskunden erhältlich. Neue Designs sollten ein alternatives Produkt erwägen.
Selbe Funktionalität wie der verglichene Baustein bei gleicher Anschlussbelegung
ATL432LI AKTIV Programmierbarer Shunt-Regler mit hoher Bandbreite und niedrigem IQ (Pinbelegung: RKA) This pin-to-pin upgrade offers improved stability boundaries and lower reference input current to optimize voltage-output accuracy.
Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung
TL432 AKTIV Einstellbarer Präzisions-Shunt-Regler (umgekehrte Pinbelegung) for cost optimized designs

Produktdetails

VO (V) 2.5 Initial accuracy (max) (%) 0.5, 1 VO adj (min) (V) 2.5 VO adj (max) (V) 36 Iz for regulation (min) (µA) 20 Reference voltage (V) adjustable Rating Catalog Temp coeff (max) (ppm/°C) 92 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 100
VO (V) 2.5 Initial accuracy (max) (%) 0.5, 1 VO adj (min) (V) 2.5 VO adj (max) (V) 36 Iz for regulation (min) (µA) 20 Reference voltage (V) adjustable Rating Catalog Temp coeff (max) (ppm/°C) 92 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 100
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • Adjustable Regulated Output of 2.5 V to 36 V
  • Very-Low Operating Current
    • IKA(min) = 35 µA (Max)
    • IREF = 150 nA (Max)
  • Internally Compensated for Stability
    • Stable With No Capacitive Load
  • Reference Voltage Tolerances at 25°C
    • 0.5% for B Grade
    • 1% for A Grade
  • Typical Temperature Drift
    • 5 mV (–40°C to +85°C); I Version
    • 6 mV (–40°C to +125°C); Q Version
  • Extended Cathode Current Range 35 µA to 100 mA
  • Low Output Impedance of 0.3 Ω (Max)
  • Adjustable Regulated Output of 2.5 V to 36 V
  • Very-Low Operating Current
    • IKA(min) = 35 µA (Max)
    • IREF = 150 nA (Max)
  • Internally Compensated for Stability
    • Stable With No Capacitive Load
  • Reference Voltage Tolerances at 25°C
    • 0.5% for B Grade
    • 1% for A Grade
  • Typical Temperature Drift
    • 5 mV (–40°C to +85°C); I Version
    • 6 mV (–40°C to +125°C); Q Version
  • Extended Cathode Current Range 35 µA to 100 mA
  • Low Output Impedance of 0.3 Ω (Max)

The ATL431 and ATL432 are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and industrial temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.05 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.

The ATL43x has > 20x improvement cathode current range over it’s TL43x predecessor. It also is stable with a wider range of load capacitance types and values.

ATL431 and ATL432 are the exact same parts but with different pinouts and order numbers. The ATL43x is offered in two grades, with initial tolerances (at 25°C) of 0.5%, 1%, for the B and A grade, respectively. In addition, low output drift vs temperature ensures consistent voltage regulation over the entire temperature range.

The ATL43xxI devices are characterized for operation from –40°C to +85°C, and the ATL43xxQ devices are characterized for operation from –40°C to +125°C.

The ATL431 and ATL432 are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and industrial temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.05 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.

The ATL43x has > 20x improvement cathode current range over it’s TL43x predecessor. It also is stable with a wider range of load capacitance types and values.

ATL431 and ATL432 are the exact same parts but with different pinouts and order numbers. The ATL43x is offered in two grades, with initial tolerances (at 25°C) of 0.5%, 1%, for the B and A grade, respectively. In addition, low output drift vs temperature ensures consistent voltage regulation over the entire temperature range.

The ATL43xxI devices are characterized for operation from –40°C to +85°C, and the ATL43xxQ devices are characterized for operation from –40°C to +125°C.

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Technische Dokumentation

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Alle anzeigen 6
Typ Titel Datum
* Data sheet ATL431, ATL432 2.5-V Low Iq Adjustable Precision Shunt Regulator datasheet (Rev. D) PDF | HTML 20 Okt 2016
E-book Tips and tricks for designing with voltage references (Rev. A) 07 Mai 2021
Application note Using the TL431 for Undervoltage and Overvoltage Detection (Rev. A) 11 Dez 2019
Selection guide 431 Device Nomenclature (Rev. B) 18 Sep 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Technical article Designing for isolated DC/DC converter shunt safety PDF | HTML 29 Aug 2015

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

ATL431EVM-001 — ATL431 einstellbarer Shunt-Regler – Evaluierungsmodul

The ATL431EVM-001 evaluation module (EVM) features the functionality and adjustability of the ATL431 by letting you program the cathode voltage with various resistor values. You can also set the cathode current using the various resistors in series with the supply. (...)

Benutzerhandbuch: PDF
Simulationsmodell

ATL432A PSpice Transient Model (Rev. B)

SLVMAT2B.ZIP (59 KB) - PSpice Model
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ATL432A Unencrypted PSpice Transient Model

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Simulationsmodell

ATL432B PSpice Transient Model (Rev. B)

SLVMAT1B.ZIP (59 KB) - PSpice Model
Simulationsmodell

ATL432B Unencrypted PSpice Transient Model

SLVMBN8.ZIP (1 KB) - PSpice Model
Simulationstool

PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
SOT-23 (DBZ) 3 Ultra Librarian

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