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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TPS2480PW датащи(PDF) 19 Page - Texas Instruments |
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TPS2480PW датащи(HTML) 19 Page - Texas Instruments |
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19 / 60 page  TPS2480 TPS2481 www.ti.com SLUS939B – APRIL 2010 – REVISED DECEMBER 2010 Automatic Restart (Figure 16) The TPS2481 automatically initiates a restart after a fault has caused it to turn off the external FET. Internal control circuits use CT to count 16 cycles before re-enabling the external FET. This sequence repeats if the fault persists. The TIMER has a 1:10 charge-to-discharge current ratio, and uses a 1-V lower threshold. The fault-retry duty cycle specification quantifies this behavior. This small duty cycle often reduces the average short-circuit power dissipation to levels associated with normal operation and reduces the need for additional protection devices. Figure 16. TPS2480/81 Restart Cycle Timing Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 19 Product Folder Link(s): TPS2480 TPS2481 |
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