Datenblatt-Suchmaschine für elektronische Bauteile |
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TDA7272A Datenblatt(PDF) 11 Page - STMicroelectronics |
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TDA7272A Datenblatt(HTML) 11 Page - STMicroelectronics |
11 / 16 page - fast forward, by putting a resistor. In this case it is necessary that also at the higher speed for the duty cycle to be significately less than 1 (see value of RT,CT on pin 2, pin 3 sections). Fig. 19 shows the function controlled with a µP. Pin 18 Right function control. The voltages applied to this pin and to pin 19 determine the function, as showed in the table. The typical value of the threshold (L-H) is 1.2 V. Pin 19 Left function control. (see pin 18 sect). Pin 20 Right speed adjustment. (see pin 17 sect). Figure 18. Figure 19. CONDITION OUTPUT FUNCTION OUTPUT VOLT AGE Pin 18 Pin 19 Pin 12 Pin 9 L H L H L L H H STOP LEFT RIGHT OPEN LOW LOW REG HIGH IMP. LOW REG LOW HIGH IMP. Figure 20: Typical application. TDA7272A 11/16 |
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Ähnliche Beschreibung - TDA7272A |
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