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TL431BCDBVT 数据表(PDF) 27 Page - Texas Instruments |
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TL431BCDBVT 数据表(HTML) 27 Page - Texas Instruments |
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27 / 77 page ![]() TL431 12 V VCC 5 V 6.8 kΩ 10 kΩ 10 kΩ 0.1% 10 kΩ 0.1% X Not Used Feedback TL598 + − VO ≈5 V TL431 VI(BATT) 27.4 kΩ 0.1% Rb (see Note A) 27.4 kΩ 0.1% VO ≈5 V, 1.5 A TL431 VI(BATT) LM317 IN OUT Adjust 243 Ω 0.1% 243 Ω 0.1% 8.2 kΩ TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543O – AUGUST 2004 – REVISED JANUARY 2015 System Examples (continued) Figure 33. Precision 5-V, 1.5-A Regulator A. Rb should provide cathode current ≥1 mA to the TL431. Figure 34. Efficient 5-V Precision Regulator Figure 35. PWM Converter With Reference Copyright © 2004–2015, Texas Instruments Incorporated Submit Documentation Feedback 27 Product Folder Links: TL431 TL431A TL431B TL432 TL432A TL432B |
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