ATL432
Programmierbarer Präzisions-Shunt-Regler, 2,5 V
Eine neuere Version dieses Produkts ist verfügbar
Selbe Funktionalität wie der verglichene Baustein bei gleicher Anschlussbelegung
ATL432
- 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 its 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.
Technische Dokumentation
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.
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. (...)
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