The TLVH431B-EP device is a low-voltage, 3-terminal, adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 18 V with two external resistors (see Figure 24). This device operates from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.
When used with an optocoupler, the TLVH431B-EP device is ideal for voltage references in isolated feedback circuits designed for 3-V to 3.3-V switching-mode power supplies. It has a typical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431B-EP device an excellent replacement for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.
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|Part number||オーダー・オプション||Reference voltage||VO (V)||VO adj (Min) (V)||VO adj (Max) (V)||Initial accuracy (Max) (%)||Temp coeff (Max) (ppm/ degree C)||Rating||Operating temperature range (C)||Iz for regulation (Min) (uA)||Iout/Iz (Max) (mA)||Package Group||Iref (uA)||I I(dev) (uA)|
||Adjustable||1.24||1.24||18||0.5||138||Catalog||-55 to 125||60||80||SOT-23 | 3||0.5||0.5|
||Adjustable||2.5||36||0.4||114||HiRel Enhanced Product||
-40 to 125
-55 to 125
|450||100||SOIC | 8|