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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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TL431 Folha de dados(PDF) 26 Page - Texas Instruments |
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TL431 Folha de dados(HTML) 26 Page - Texas Instruments |
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26 / 41 page  TL431, TL431A, TL431B TL432, TL432A, TL432B ADJUSTABLE PRECISION SHUNT REGULATORS SLVS543H − AUGUST 2004 − REVISED JANUARY 2005 26 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION VO ≈5 V, 1.5 A TL431 VI(BATT) LM317 IN OUT Adjust 243 Ω 0.1% 243 Ω 0.1% 8.2 k Ω Figure 23. Precision 5-V 1.5-A Regulator VO ≈5 V TL431 VI(BATT) 27.4 k Ω 0.1% Rb (see Note A) 27.4 k Ω 0.1% NOTE A: Rb should provide cathode current ≥1 mA to the TL431. Figure 24. Efficient 5-V Precision Regulator TL431 12 V VCC 5 V 6.8 k Ω 10 k Ω 10 k Ω 0.1% 10 k Ω 0.1% X Not Used Feedback TL598 + − Figure 25. PWM Converter With Reference |
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