MAX14566E Datasheet, PDF (10/15 Pages) Maxim Integrated Products – USB Host Charger Identification Analog Switches 2mm x 2mm, 8-Pin TDFN Package

USB Host Charger Identification
Analog Switches
VCC
VCC
Functional Diagram
RP1
RP2
RM1
RM2
TDP
TDM
MAX14566E
MAX14566AE
MAX14566BE
DP
0.46VCC
0.46VCC
0.07VCC
DP
DM1
DM2
DM
500kI
CB1*
( ) FOR MAX14566AE ONLY
*FOR MAX14566BE ONLY
CONTROL LOGIC
1s
ONE SHOT
GND
VCC
V_BIAS
CEN
(CEN)
CB
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
10
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