Datasheet

SLVA037A
2 Designing a USB Power Distribution System Using the TPS2014 and TPS2015 Power Distribution Switches
Figures
Figure 1.
USB Self-Powered Hub Voltage Drops.............................................................................5
Figure 2. Self-Powered Hub Non-Ganged Reference Design.........................................................7
Figure 3. Self-Powered Hub Ganged Reference Design.................................................................8
Figure 4. USB Bus-Powered Hub Voltage Drops ..........................................................................10
Figure 5. Non-Ganged Transient Load Test Circuit ......................................................................13
Figure 6. 2.5-A Fuse Short-Circuit Test..........................................................................................13
Figure 7. 2.5-A PTC Resistor Short-Circuit Test............................................................................14
Figure 8. TPS2014 Short-Circuit Test .............................................................................................15
Figure 9. 500-mA Transient Load Test Circuit...............................................................................16
Figure 10. 500-mA Transient .............................................................................................................16
Figure 11. Non-Ganged Transient Load Test Circuit ......................................................................17
Figure 12. Non-Ganged Hot-Insertion Transient .............................................................................18
Figure 13. Ganged Transient Load Test Circuit ..............................................................................18
Figure 14. Ganged Hot-Insertion Transient .....................................................................................19
Figure 15. Ganged Test Circuit With Ferrite Beads ........................................................................19
Figure 16. Ganged With Ferrite Beads Hot-Insertion Transient.....................................................20
Tables
Table 1.
TPS2014 and TPS2015 Current Limits .............................................................................3