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PDF AX431A Data sheet ( Hoja de datos )
| Número de pieza | AX431A | |
| Descripción | ADJUSTABLE PRECISION SHUNT REGULATOR | |
| Fabricantes | AXElite | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AX431A (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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AX431/A
ADJUSTABLE PRECISION SHUNT REGULATOR
GENERAL DESCRIPTION
The AX431/A is a low voltage three terminal adjustable shunt regulator with a
guaranteed thermal stability over applicable temperature ranges. The output voltage can
be set to any value between 2.495V (VREF) to 36V with two external resistors (see
application circuit). The high precise Reference voltage tolerance is ±1% by AX431 and
±0.5% by AX431A. This device has a typical output impedance of 0.2Ω. Active output
circuitry provides a very sharp turn on characteristic, making this device excel lent
replacement for Zener diodes in many applications.
The AX431/A is characterized for operation from -20°C to 85°C. The AX431/A is two
types (R and W types) available in a low profile SOT23-3L and SOT-23-5L packages.
FEATURES
- Precision reference voltage
AX431: 2.495V±1%
AX431A: 2.495V±0.5%
- Adjustable output voltage is VREF to 36V
- Sink current capability is 200mA
- Low dynamic output impedance is 0.2Ω (typ.)
- Minimum Cathode current for regulation is 0.2mA (typ.)
- SOT-23-3L and SOT-23-5L Pb-Free packages
PIN ASSIGNMET
Anode
3
Anode
3
AX431/A
12
REF Cathode
SOT-23-3L (R type)
(Top View)
AX431W/AW
12
Cathode REF
SOT-23-3L (W type)
(Top View)
NC 1
5 Anode
SUB 2
Cathode 3
4 REF
SOT-23-5L
(Top View)
note:The Pin2 is SUB, so connect the terminal to GND.
1/9
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev. 1.6 Feb.14, 2012
1 page  
AX431/A
TYPICAL CHARACTERISTICS
Cathode VoltageVs Cathode Current (uA)
300
250 VKA=VREF
TA=2℃
200
150
100
50
0
-50
-100
-150
-200
-1
-0.5
0 0.5 1 1.5
Cathode Voltage (V)
2
2.5
Cathode VoltageVs Cathode Current
100
VKA=VREF
75 TA=2℃
50
25
0
-25
-50
-75
-100
-1.5
-0.5 0.5
Cathode Voltage (V)
1.5
2.5
Cathode Voltage Vs Change in Reference Voltage
0
R1=1K
-4 IKA=10m
A
-8
-12
-16
-20
-24
0 5 10 15 20 25 30 35
Cathode Voltage (V)
5/9
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev. 1.6 Feb.14, 2012
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet AX431A.PDF ] | |
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