Datasheet

MAX14566E/MAX14566AE/MAX14566BE
USB Host Charger Identification
Analog Switches
10
Detailed Description
The MAX14566E/MAX14566AE/MAX14566BE are Hi-Speed
USB analog switches that support USB hosts to identify
the USB port as a charger port when the USB host is in
a low-power mode and cannot enumerate USB devices.
These devices feature high-performance Hi-Speed USB
switches with low 4pF (typ) on-capacitance and low
4I (typ) on-resistance. DP and DM can handle signals
between 0V and 6V with any supply voltage.
Resistor-Dividers
All the devices feature an internal resistor-divider for
biasing data lines to provide support for Apple-compliant
devices. When these devices are not operated with the
resistor-divider, they disconnect the resistor-dividers
from the supply voltage to minimize supply current
requirements. The resistor-dividers are not connected in
pass-through mode.
Switch Control
The MAX14566E/MAX14566AE feature a single digital
input, CB, for mode selection (Table 1). Connect CB to
a logic-level low voltage for autodetection charger mode
(AM). See the Autodetection section for more informa-
tion. Connect CB to a logic-level high voltage for normal
high-speed pass-through mode (PM). The MAX14566BE
features dual digital inputs, CB and CB1, for mode selec-
tion (Table 2). Connect CB to a logic-level high for nor-
mal high-speed pass-through mode (PM). Connect CB
to a logic-level low for different charger-mode selection
Functional Diagram
RM1
500kI
RM2
DP
CONTROL LOGIC
ONE SHOT
RP1
RP2
DP
TDP
TDM
CB1*
DM
CB
CEN
(CEN)
V
BIAS
0.46V
CC
V
CC
V
CC
GND
V
CC
DM1
0.46V
CC
DM2
0.07V
CC
MAX14566E
MAX14566AE
MAX14566BE
1s
( ) FOR MAX14566AE ONLY
*FOR MAX14566BE ONLY