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TL431MFKB Datasheet(PDF) 26 Page - Texas Instruments |
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TL431MFKB Datasheet(HTML) 26 Page - Texas Instruments |
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26 / 74 page  VO TL431 VI(BATT) R1 R2 C (see Note A) VO TL431 VI(BATT) R1 R2 V O 1 R1 R2 V ref = + ( ( VO TL431 VI(BATT) uA7805 IN OUT Common R1 R2 V O 1 R1 R2 V ref Minimum V O V ref 5 V = + = + ( ( R (see Note A) VO TL431 VI(BATT) 2N222 2N222 4.7 kΩ R1 0.1% R2 0.1% 0.01 µF 30 Ω O ref R1 V = 1 + V R2 æ ö ç ÷ è ø TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543O – AUGUST 2004 – REVISED JANUARY 2015 www.ti.com 10.3 System Examples A. R should provide cathode current ≥1 mA to the TL431 at minimum V(BATT). Figure 29. Precision High-Current Series Regulator Figure 30. Output Control of a Three-Terminal Fixed Regulator Figure 31. High-Current Shunt Regulator A. Refer to the stability boundary conditions in Figure 16 and Figure 18 to determine allowable values for C. Figure 32. Crowbar Circuit 26 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TL431 TL431A TL431B TL432 TL432A TL432B |
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