TL431AC 查看數據表（PDF） - Fairchild Semiconductor

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TL431AC

Programmable Shunt Regulator

Fairchild Semiconductor 

TL431/TL431A

Typical Application

VO = ⎝⎛1 + RR-----12-⎠⎞ Vref

VO

=

Vre

f

⎛

⎝

1

+

RR-----12-⎠⎞

MC7805/LM7805

VO = ⎝⎛1 + RR-----12-⎠⎞ Vref

TL431/A

Figure 10. Shunt Regulator

TL431/A

TL431/A

Figure 11. Output Control for Three- Figure 12. High Current Shunt Regula-

Termianl Fixed Regulator

tor

TL431/A

Figure 13. Current Limit or Current Source

TL431/A

Figure 14. Constant-Current Sink

6

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