UCS81003 Datasheet, PDF (24/108 Pages) Microchip Technology – Automotive USB Port Power Controller with Charger Emulation

UCS81003
Figure 5-2 shows a system configuration in which the
UCS81003 provides a USB data switch, port power
switch, low-power Attach Detection and portable
device Attach/Removal Detection signaling. This
configuration does not include configurable data line
charger emulation, programmable current limiting or
current monitoring and rationing.
USB Host
5V Host
C_IN
Enable
Detect State
3V–5.5V
Latch
Upon
Fault
Disable
Detect State
Auto-recovery
Upon Fault
D_PIN
D_POUT
D_MIN
D_MOUT
V_S1
V_BUS1
V_S2
V_BUS2
V_S3
V_BUS3
UCS81003
EM_EN
C_BUS
M1
M2
PWR_EN
SEL
LATCH
3V–5.5V
S0
COMM_SEL/I_LIM
5V
V_DD
A_DET#
GND ALERT#
Device
FIGURE 5-2:
UCS81003 System Configuration (Charger Emulation, No SMBus, with USB Host).
DS20005334A-page 24
 2014 Microchip Technology Inc.