MIC2026 Datasheet, PDF (13/16 Pages) Micrel Semiconductor – Dual-Channel Power Distribution Switch Preliminary Information

MIC2026/2076
Micrel
4.50V to 5.25V
Upstream V_BUS
100mA max.
V_BUS
D+
D–
GND
MIC5207-3.3
IN
OUT
1µF
GND
10k
10k
3.3V USB Controller
VIN
ON/OFF
1µF ^OVERCURRENT
OVERCURRENT
ON/OFF
Data
V_CC
5.0V
MIC2026-2
ENA
FLGA
FLGB
ENB
OUTA
IN
GND
OUTB
47µF
0.1µF
47µF
Ferrite
Beads
V_BUS
D+
D–
GND
V_BUS
D+
D–
GND
Data
(Two Pair)
to USB
Controller
Figure 5. USB Two-Port Host Application
USB
Port 1
USB
Port 2
4.50V to 5.25V
Upstream V_BUS
V_BUS
D+
D–
GND
1.5k 2%
MIC5207-3.3
IN
OUT
1µF
GND
10k
10k
3.3V USB Controller
VIN
ON/OFF
1µF ^OVERCURRENT
OVERCURRENT
ON/OFF
Data
MIC2026-2
ENA
FLGA
FLGB
ENB
OUTA
IN
GND
OUTB
47µF
0.1µF
47µF
Ferrite
Beads
V_BUS
D+
D–
GND
V_BUS
D+
D–
GND
Data
(Two Pair)
to USB
Controller
Figure 6. USB Two-Port Bus-Powered Hub
USB
Port 1
USB
Port 2
March 2000
13
MIC2026/2076