Datasheet Diodes AS431 — Datenblatt

Hersteller	Diodes
Serie	AS431

Einstellbare 2,5-V-Shunt-Regler

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PDF, 566 Kb, Sprache: en, Datei hochgeladen: Jan 8, 2025, Seiten: 20
2.5 ADJUSTABLE SHUNT REGULATORS

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AS431
ADJUSTABLE PRECISION SHUNT REGULATORS Description Pin Assignments The AS431 is a three-terminal adjustable shunt regulator with
guaranteed thermal stability over a full operation range. It features
sharp turn-on characteristics, low temperature coefficient and low
output impedance, which make it ideal substitute for Zener diode in
applications such as switching power supply, charger and other
adjustable regulators. (Top View) (Top View) ANODE
3 NC 1 * 2 CATHODE 3 (Note 4) The output voltage of AS431 can be set to any value between VREF
(2.5V) and the corresponding maximum cathode voltage (36V). 1 2 REF The AS431 precision reference is offered in two voltage tolerance:
0.5% and 1.0%.
This IC is available in 4 packages: TO92 (Ammo Packing), SOT23,
SOT25 and SOT89. 5 ANODE 4 REF CATHODE SOT23 SOT25 Note 4: * Pin 2 is attached to substrate and must be connected to ANODE or
open. (Top View) (Top View) Features Programmable Precise Output Voltage from 2.5V to 36V High Stability under Capacitive Load Low Temperature Deviation: 4.5mV Typical Low Equivalent Full-range
20PPM/°C Typical Sink Current Capacity from 1mA to 100mA Low Output Noise Wide Operating Range of -40 to +125°C Lead-Free Packages: SOT23, SOT25, TO92 (Ammo Packing),
SOT89
 Temperature Coefficient with 1
REF  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3) Charger Voltage Adapter Switching Power Supply Graphic Card Precision Voltage Reference Notes: ANODE CATHODE 1
REF 2 3 ANODE CATHODE SOT89 (Option 2) (Top View) Lead-Free Packages, Available in “Green” Molding Compound:
SOT23, SOT25, TO92 (Ammo Packing), SOT89 3 SOT89 (Option 1) Totally Lead-Free; RoHS Compliant (Notes 1 & 2) Applications 2 3 CATHODE 2 ANODE 1 REF TO92 (Ammo Packing) 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen-and Antimony-free, "Green" and
Lead-free.
3. Halogen-and Antimony-free "Green” products are defined as those which contain …

Preise

Detaillierte Beschreibung

Der AS431 ist ein einstellbarer Shunt-Regler mit drei Anschlüssen und garantierter thermischer Stabilität über den gesamten Betriebsbereich.

Er zeichnet sich durch scharfe Einschalteigenschaften, einen niedrigen Temperaturkoeffizienten und eine niedrige Ausgangsimpedanz aus, was ihn zum idealen Ersatz für Zenerdioden in Anwendungen wie Schaltnetzteilen, Ladegeräten und anderen einstellbaren Reglern macht. Die Ausgangsspannung des AS431 kann auf jeden Wert zwischen VREF (2,5 V) und der entsprechenden maximalen Kathodenspannung (36 V) eingestellt werden. Die Präzisionsreferenz AS431 wird in zwei Spannungstoleranzen angeboten: 0,5 % und 1,0 %.

Parameter

Parameters / Models	AS431AKTR-G1	AS431ANTR-E1	AS431ANTR-G1	AS431ANTR-G1-C01	AS431ARTR-E1	AS431ARTR-G1	AS431AZTR-E1	AS431AZTR-G1	AS431BKTR-G1	AS431BNTR-E1	AS431BNTR-G1	AS431BRTR-E1	AS431BRTR-G1	AS431BZTR-E1	AS431BZTR-G1	AS431HANTR-G1	AS431HAZTR-G1	AS431HBNTR-G1	AS431HBZTR-G1	AS431HMANTR-G1	AS431HMBNTR-G1	AS431IANTR-G1	AS431IAZTR-G1	AS431IBNTR-G1
AEC Qualified	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No
Compliance (Only Automotive supports PPAP)	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard
Maximum Input Voltage (V)	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V
Maximum Slope Resistance (Ω)	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω	0.5 Ω
Minimum Cathode Current for Regulation Typ (µA)	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA	1000 µA
Operating Ambient Temperature Range (°C)	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C
ReferenceVoltage (V)	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V
Sink Current (mA)	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA
Type	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator	Shunt regulator
Typical Temperature Coefficient (ppm/°C)	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C	11 ppm/°C

Modellreihe

Serie: AS431 (24)

AS431AKTR-G1 AS431ANTR-E1 AS431ANTR-G1 AS431ANTR-G1-C01 AS431ARTR-E1 AS431ARTR-G1 AS431AZTR-E1 AS431AZTR-G1 AS431BKTR-G1 AS431BNTR-E1 AS431BNTR-G1 AS431BRTR-E1 AS431BRTR-G1 AS431BZTR-E1 AS431BZTR-G1 AS431HANTR-G1 AS431HAZTR-G1 AS431HBNTR-G1 AS431HBZTR-G1 AS431HMANTR-G1 AS431HMBNTR-G1 AS431IANTR-G1 AS431IAZTR-G1 AS431IBNTR-G1

Herstellerklassifikation

Power Management > Voltage References