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MAX14600–MAX14605/MAX14618

USB Host Charger Identification/Adapter Emulators

Detailed Description

The MAX14600–MAX14605 and MAX14618 adapter

emulator family has 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 Hi-Speed USB

switches feature low 4pF (typ) on-capacitance and low

3.5I (typ) on-resistance. DP and DM can handle signals

between 0V and 6V with any supply voltage.

Resistor-Dividers

The MAX14600–MAX14605/MAX14618 family features

an internal resistor-divider for biasing data lines to pro-

MAX14600–MAX14605/MAX14618 family is not oper-

ated with the resistor-divider, the device disconnects

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 MAX14600–MAX14605/MAX14618 family features

dual digital inputs, CB0 and CB1, for mode selection.

For the MAX14600/MAX14601/MAX14603/MAX14604,

connect CB0 and CB1 to a logic-level low voltage for

autodetection charger mode (AM). Change only CB1 to a

logic-level high for forced dedicated charger mode (FM).

Change only CB1 to a logic-level low for normal high-

speed pass-through mode (PM). Connect CB0 and CB1

to a logic-level high for high-speed pass-through mode

with CDP emulation (CM). See Table 1.

For the MAX14618, connect CB0 to a logic-level low volt-

age for autodetection charger mode (AM). Change CB0

to a logic-level high voltage and CB1 to a logic-level low

voltage to place the MAX14618 in normal high-speed

pass-through charger mode (PM). Connect CB0 and

CB1 to a logic-level high for high-speed pass-through

mode with CDP emuation (CM). See Table 2.

In CDP emulation mode, the peripheral device with

CDP detection capability draws the charging current

Table 1. Digital Input State for MAX14600/MAX14601/MAX14603/MAX14604

Table 3. Digital Input State for MAX14602/MAX14605

Table 2. Digital Input State for MAX14618

CB0

CB1

CHARGER/USB

MODE

STATUS

0

0

Charger

AM

Autodetection Charger Mode

0

1

Charger

FM

Force Dedicated Charger Mode: DP/DM shorted.

1

0

USB

PM

USB Pass-Through Mode: DP/DM connected to TDP/TDM.

1

1

USB

CM

USB Pass-Through Mode with CDP Emulation: Auto connects DP/DM to

TDP/TDM depending on CDP status.

CB0

CB1

CHARGER/USB

MODE

STATUS

0

X

Charger

AM

Auto detection Charger Mode with Remote Wake-Up

1

0

USB

PM

USB Pass-Through Mode: DP/DM connected to TDP/TDM.

1

1

USB

CM

USB Pass-Through Mode with CDP Emulation: Auto connects DP/DM to

TDP/TDM depending on CDP status.

CB0

CHARGER/USB

MODE

STATUS

0

Charger

AM

Autodetection Charger Mode

1

USB

CM

USB Pass-Through Mode with CDP Emulation: Auto connects DP/DM to TDP/TDM

depending on CDP status.