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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TPS2371 датащи(PDF) 11 Page - Texas Instruments |
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TPS2371 датащи(HTML) 11 Page - Texas Instruments |
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11 / 14 page  TPS2371 SLUS566A − JULY 2003 − REVISED NOVEMBER 2003 11 www.ti.com APPLICATION INFORMATION Figure 1 shows an application where 40 V < VIN < 57 V. In this case, the brick supply is greater then 40 V and goes through TPS2371. RDET RLIM CSS CDCDCIN RCLASS UDG−03094 3 1 2 4 5 TPS2371 6 DC/DC Converter 8 Ethernet Device VREG V+ V− 44 V TO 57 V PoE Powered Device Front End RJ−45 DC BRICK SUPPLY 3 6 1 2 4 5 7 8 RX TX S P A R E 7 V− CLIM Figure 1. For Applications 40 V < VIN < 57 V. Figure 2 shows an application where VIN < 36 V. In this application, the brick supply is bypassing the hot swap switch. Consequently, the dc-to-dc converter can operate from any voltage. However, for VBRICK < 23 V, a Class 0 resistor (RCLASS = 4.42 kΩ) is recommended. This minimizes the power dissipation in TPS2371 if VBRICK falls in the classification voltage range (15 V to 20 V). The 80- µA current sink on EN_DC pin is enabled only if VDD > 36 V. RDET RLIM CSS CDCDCIN RCLASS UDG−03095 CLIM 3 1 2 4 5 TPS2371 6 DC/DC Converter 8 Ethernet Device VREG PoE POWERED DEVICE FRONT END RJ−45 3 6 1 2 4 5 RX TX V+ V− 44 V TO 57 V 7 V− DC BRICK SUPPLY 5 7 8 S P A R E Figure 2. For Applications VIN < 40 V. |
Аналогичный номер детали - TPS2371 |
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Аналогичное описание - TPS2371 |
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