STPC® ATLAS
6.3.10. USB INTERFACE
The STPC integrates a USB host interface with a
2-port Hub. The only external device needed are
Figure 6-16. Typical USB implementation
the ESD protection circuits USBDF01W5 and a
USB power supply controller. Figure 6-16
describes a typical implementation using these
devices.
Connector
USBDMNS[0]
USBDF01W5 (note 1)
R = 15 Ohm
3
4
1
29
USBDPLS[0]
1
5
R = 152Ohm
100pF
3 10
4
ct(s) USBDMNS[1]
te Produ USBDPLS[1]
USBDF01W5 (note 1)
RR==1155OOhhmm
3
4
1
5
RR==11552OOhhmm
100pF
5
6 11
7 12
8
GND
uct(s) - Obsole OC
Prod POWERON
Obsolete STPC
5V
5V
5V
2,3
5
6,7,8
TPS2014
4
1
USBVCC
100nF 2x 47uF
100nF
TPS2014
Power Decoupling
Note 1: The ESD protection will be adequate for most applications. In some instances, problems may occur
if the devices on the USB chain do not have enough power to drive the signals adequately. We therefore
recommend that you replace the part with discrete components and reduce the value of the capacitor.
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