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1.8V Reference power supply
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Mode:Editors' pick
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Update time:
2021-04-10 14:27:19
Creation time:
2016-03-29 06:22:04
Description
1、Module description:
The TL431 and TL432 are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref(approximately 2.5 V) and 36 V, with two external resistors (see Figure 17). These devices havea typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation,
adjustable power supplies, and switching power supplies. The TL432 has exactly the same functionality andelectrical specifications as the TL431, but has different pinouts for the DBV, DBZ, and PK packages.
2、Function Description:
Obtain a more accurate 1.8V reference voltage, through the 3.6V to obtain the TL431 reference voltage, after the partial pressure into 1.8V, the follower output stability of 1.8V;
3、Description of each function module:
![enter image description here][1]
4、Components and PCB diagram before welding:
![enter image description here][2]
5、Physical map after welding:
![enter image description here][3]
![enter image description here][4]
![enter image description here][5]
[1]: /editor/20160415/57109abb3b8d3.png
[2]: /editor/20160415/57109b030d811.png
[3]: /editor/20160503/5728462a2a607.JPG
[4]: /editor/20160503/5728462e07a6b.JPG
[5]: /editor/20160503/5728463159508.JPG
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1.8V Reference power supply
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Announcer: layout
Creation time: 2016-03-29 06:22:04
Published time:
2021-04-10 14:27:19
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