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TL431ACLPR 数据表(PDF) 28 Page - Texas Instruments |
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TL431ACLPR 数据表(HTML) 28 Page - Texas Instruments |
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28 / 85 page  9.3 System Examples 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 A. R should provide cathode current ≥1mA to the TL431 at minimum V(BATT). Figure 9-5. Precision High-Current Series Regulator VO TL431 VI(BATT) uA7805 IN OUT Common R1 R2 V O 1 R1 R2 V ref Minimum V O V ref 5 V = + = + ( ( Figure 9-6. Output Control of a Three-Terminal Fixed Regulator VO TL431 VI(BATT) R1 R2 V O 1 R1 R2 V ref = + ( ( Figure 9-7. High-Current Shunt Regulator VO TL431 VI(BATT) R1 R2 C (see Note A) A. Refer to the stability boundary conditions in Figure 6-16 and Figure 6-18 to determine allowable values for C. Figure 9-8. Crowbar Circuit TL431, TL432 SLVS543S – AUGUST 2004 – REVISED MAY 2024 www.ti.com 28 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated Product Folder Links: TL431 TL432 |
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