Datasheet Diodes AS431 — Ficha de datos

Fabricante	Diodes
Serie	AS431

Reguladores de derivación ajustables de 2,5 V

Hojas de datos

Vista previa y descarga

PDF, 566 Kb, Idioma: en, Archivo subido: enero 8, 2025, Páginas: 20
2.5 ADJUSTABLE SHUNT REGULATORS

Extracto del documento

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 …

Precios

Descripción detallada

El AS431 es un regulador de derivación ajustable de tres terminales con estabilidad térmica garantizada en un rango completo de operación.

Presenta características de encendido nítido, coeficiente de temperatura bajo y baja impedancia de salida, lo que lo convierte en el sustituto ideal del diodo Zener en aplicaciones como fuentes de alimentación conmutadas, cargadores y otros reguladores ajustables. El voltaje de salida del AS431 se puede configurar en cualquier valor entre VREF (2,5 V) y el voltaje de cátodo máximo correspondiente (36 V). La referencia de precisión del AS431 se ofrece en dos tolerancias de voltaje: 0,5 % y 1,0 %.

Paramétricos

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

Linea modelo

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

Clasificación del fabricante

Power Management > Voltage References