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2045A 数据表(PDF) 26 Page - Texas Instruments |
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2045A 数据表(HTML) 26 Page - Texas Instruments |
26 / 31 page TPS2045A, TPS2046A, TPS2047A, TPS2048A TPS2055A, TPS2056A, TPS2057A, TPS2058A CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES SLVS251A – SEPTEMBER 2000 – REVISED FEBRUARY 2001 26 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION Figure 30. Bus-Powered Hub Implementation, TPS2048A DP1 DM1 DP2 DM2 DP3 DM3 DP4 PWRON1 OVRCUR1 PWRON2 OVRCUR2 PWRON3 OVRCUR3 PWRON4 OVRCUR4 DM4 DP0 DM0 VCC XTAL1 XTAL2 OCSOFF SN75240 D + D – 5 V GND D + D – 5 V D + D – 5 V D + D – 5 V 48-MHz Crystal Downstream Ports TUSB2040 Hub Controller Tuning Circuit A B C D 33 µF† SN75240 A B C D GND GND GND 33 µF† 33 µF† 33 µF† D + D – Upstream Port TPS2041A SN75240 A B 5 V GND C D GND Ferrite Beads Ferrite Beads Ferrite Beads Ferrite Beads BUSPWR GANGED IN GND 3.3 V 4.7 µF 0.1 µF 4.7 µF EN1 IN1 OC1 OUT1 TPS2048A EN2 OC2 OUT2 0.1 µF 0.1 µF GND † USB rev 1.1 requires 120 µF per hub. EN3 OC3 OUT3 EN4 OC4 OUT4 IN2 GNDA GNDB TPS76333 |
类似零件编号 - 2045A |
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类似说明 - 2045A |
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