Silego Technology, Inc.

Rev 0.5

000-0055596-05

Revised April 22, 2014

USB Host Charger Identification

Analog Switches

SLG55596

Preliminary

Block Diagram

General Description

The SLG55596 is a USB device that combines high speed

USB switches with a USB host charger (dedicated charger)

identification circuit. The device supports both the latest USB

Battery Charging Specification Revision 1.2 including data

contact detection and a set resistor bias for Apple* compliant

devices as well as legacy USB D+/D- short detection using

data line pull-up.

The SLG55596 can also support CDP mode (FAST charging

and data communication available mode if smartphone can

support CDP mode).

The SLG55596 can also support low speed / full speed

mouse/keyboard wake-up from S3 mode.

Features

•

High Speed USB Switching

•

Low 4.0pF (typ) On Capacitance

•

Low 4.0

Ω (typ) On Resistance

•

Low 0.5

Ω (typ) On Resistance Flatness

•

4.5V to 5.5V Supply Range

•

Low Supply Current

•

Automatic Current-Limit Switch Control

•

Automatic USB Charger Identification Circuit

•

CDP Support (active USB 2.0 data communication with

1.5A charging)

•

Apple iPad* @ 2.4A charging current support

•

Automatic CDP/SDP mode support with SMART-CDP=1

for "Always Data Communication"

•

Chinese Telecom Standard YD/T 1591-2009 specification

support

•

Samsung Galaxy Tab** charge scheme support

•

Pb-Free / RoHS Compliant / Halogen-Free

•

TDFN-8 Package

Pin Configuration - SLG55596

* Apple iPhone, iPad and iPod are trademarks of Apple Inc., registered in the

U.S. and other countries.

** Samsung Galaxy Tab are trademarks of Samsung Electronics, registered in

Korea and other countries.

VDD

SMART-CDP

TDP

TDM

CB

DP

DM

CEN#

2

3

45

6

7

8

1

Thermal Pad

connected to GND

TDFN-8

(Top View)

FSM Logic

One Shot

+

-

+

-

CEN#

CB

DM

DP

+

-

FET

TDP

TDM

Resistor

Divider

Resistor

Divider

SMART-CDP