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PDF ULVH431 Data sheet ( Hoja de datos )
| Número de pieza | ULVH431 | |
| Descripción | LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
ULVH431
Preliminary
LINEAR INTEGRATED CIRCUIT
LOW-VOLTAGE ADJUSTABLE
PRECISION SHUNT
REGULATOR
DESCRIPTION
The UTC ULVH431 is a low-voltage 3-terminal programmable
shunt regulator with guaranteed thermal stability over full applicable
industrial and commercial temperature ranges.
The output voltage of UTC ULVH431 can be set to any value
between VREF (1.24V) and the corresponding maximum cathode
voltage (18V) with two external resistors. The device operates from
a lower voltage (1.24V) than the widely used TL431 and TL1431
shunt-regulator references.
The UTC ULVH431 is an ideal voltage reference in isolated
feedback circuits for 3-V to 3.3-V switching-mode power supplies
when it is used with an opto-coupler. It has a typical output
impedance of 0.25Ω. Active output circuitry supplies a very sharp
turn-on characteristic, which makes the UTC ULVH431 very good
substitute for low-voltage Zener diode in many applications such as
adjustable power supplies and on-board regulation.
FEATURES
* Adjustable output voltage, VO=VREF to 18 V
* Low-Voltage operation: VREF= 1.24 V
* Wide operating cathode current range: 100µA to 50mA
* Reference voltage tolerances at 25°C
* 0.25-Ω typical output impedance
* -40°C ~ 125°C specifications
ORDERING INFORMATION
Ordering Number
ULVH431G-AE2-R
ULVH431G-AE3-R
Package
SOT-23-3
SOT-23
Pin Assignment
123
KRA
KRA
Packing
Tape Reel
Tape Reel
www.unisonic.com.tw
Copyright © 2016 Unisonic Technologies Co., Ltd
1 of 6
QW-R103-115.b
1 page  
ULVH431
Preliminary
EQUIVALENT SCHEMATIC
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R103-115.b
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet ULVH431.PDF ] | |
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