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ISP1122ABD 数据表(PDF) 26 Page - NXP Semiconductors |
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ISP1122ABD 数据表(HTML) 26 Page - NXP Semiconductors |
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26 / 48 page  Philips Semiconductors ISP1122A USB stand-alone hub Preliminary specification Rev. 01 — 27 March 2000 26 of 48 9397 750 06986 © Philips Electronics N.V. 2000. All rights reserved. Power switches 1 to 5 are low-ohmic PMOS devices as specified in Section 12.2. Fig 10. Mode 5: self-powered hub; individual port power switching; individual overcurrent detection. MBL170 handbook, full pagewidth INDV OPTION PSW1/GL1 PSW5/GL5/GPSW PSW4/GL4 PSW3/GL3 SP/BP OC5/GOC PSW2/GL2 OC1 OC2 OC3 OC4 5 V POWER SUPPLY ± 3% 1 − + VBUS D + D − GND SHIELD +4.85 V(min) +4.85 V(min) +4.75 V (min) 1 2 VBUS D + D − GND SHIELD +4.75 V (min) 2 3 3 VBUS D + D − GND SHIELD +4.75 V (min) VCC GND 330 k Ω (5 ×) 100 Ω to 1 k Ω 4 5 VBUS D + D − GND SHIELD +4.75 V (min) 4 120 µF VBUS D + D − GND SHIELD +4.75 V (min) 5 ferrite bead downstream ports ISP1122A 120 µF ferrite bead 120 µF ferrite bead 120 µF ferrite bead 120 µF ferrite bead low-ohmic PMOS switch 47 k Ω 0.1 µF low-ohmic PMOS switch 47 k Ω 0.1 µF low-ohmic PMOS switch 47 k Ω 0.1 µF low-ohmic PMOS switch 47 k Ω 0.1 µF low-ohmic PMOS switch 47 k Ω 0.1 µF |
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