Datenblatt-Suchmaschine für elektronische Bauteile |
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TD230N Datenblatt(PDF) 11 Page - STMicroelectronics |
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TD230N Datenblatt(HTML) 11 Page - STMicroelectronics |
11 / 15 page Figure 9B : Silkscreen Figure 9C : Schematic Figure 9A : PCB (not to scale) eventual control block, or, if it should not be used, tied to the GND pin. 4. Th e SHUTDOWN pin i s an open dr ain CMOS/TTL compatible output which should be tied to the TTL compatible input of an eventual control block. The absolute maximum rating of this output is 7V. In the case of a visual alarm, a LED is likely to be tied to the positive power supply which can be destructive for the Shutdown output if the power supply is over 7V. An easy way to eliminate this is to add a 6V zener diode between the Shutdown output and the Ground as shown on figure 10. 5. The time constant of the protection mode (given by the charge of CTRIP1/2 capacitors) must be greater than the time constant of the restart at- tempts (given by the charge of the CSS 1/2 soft start capacitors). This condition can be described as follows : • VSP1/2 xCTRIP1/2 /IP/N2 >VTH1/2 x (CSS1/2+CISS1/2)/ IP/N1 TD230 11/15 |
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Ähnliche Beschreibung - TD230N |
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