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LAN9514 Datasheet(PDF) 16 Page - Microchip Technology

Part # LAN9514
Description  USB 2.0 Hub and 10/100 Ethernet Controller
PDF  54 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9514 Datasheet(HTML) 16 Page - Microchip Technology

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LAN9514/LAN9514I
DS00002306A-page 16
 2009-2016 Microchip Technology Inc.
current situation, the poly fuse will open. This will cause the cathode of the diode to go to 0_volts. The anode of the
diode will be at 0.7_volts, and the Schmidt trigger input will register this as a low, resulting in an overcurrent detection.
The open drain output does not interfere.
FIGURE 2-4:
PORT POWER CONTROL WITH POLY FUSE
USB
Device
PRTCTL3
5V
Poly Fuse
LAN9514/
LAN9514i
USB
Device
PRTCTL2
5V
Poly Fuse
USB
Device
PRTCTL4
5V
Poly Fuse
USB
Device
PRTCTL5
5V
Poly Fuse



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