UNISONIC TECHNOLOGIES CO., LTD

USB4S012

Preliminary

TVS

www.unisonic.com.tw

1 of 4

Copyright © 2014 Unisonic Technologies Co., Ltd

QW-R215-010.a

4-CHANNEL ESD SOLUTION

FOR USB-HS/USB OTG/USB

CHARGER INTERFACE



DESCRIPTION

The UTC USB4S012 is a four-channel electrostatic discharge

(ESD) solution for USB charger or USB on-the-go (OTG) interface.

In many cell phone applications, the USB connector is the de facto

communication port for external communications like high-speed

data transfer, audio signal, charging, car-kit, etc. In order to support

different interfaces, the USB port needs to handle different voltage

USB specifications. The UTC USB4S012 offers combinations of

two different clamp voltages to match the voltage tolerances of the

different signal interfaces using the common USB connector.

The UTC USB4S012 conforms to IEC61000-4-2 (Level 4) ESD.

The device is offered in space-saving packages with flow-through

pin mapping.



FEATURES

* Integrated ESD Clamps for D+, D–, VBUS, and ID Pins to

Provide Single-Chip ESD Protection for USB High Speed,

USB-OTG, and USB Charger Interface

* IEC 61000-4-2 (Level 4) System Level ESD

Compliance Measured at the D+, D–, and ID Pins

– ±10-kV IEC 61000-4-2 Contact Discharge

– ±10-kV IEC 61000-4-2 Air-Gap Discharge

D+, D–, and ID Lines

* Special Snap Back Technology Allows High-voltage

Tolerance During Normal Operation while Reducing the

Clamp Voltage during System Level ESD Stress

* USB Signal Pins (D+, D–, ID)

– 0.8-pF Line Capacitance

– Tolerates 6V Signal

– 11-pF Line Capacitance

– Tolerates 20V Signal

* Flow-Through Pin Mapping for the High-Speed

Lines Ensures Zero Additional Skew Due to Board

Layout While Placing the ESD

Protection Chip Near the Connector

* Supports Data Rates in Excess of 480Mbps

* Industrial Temperature Range: –40°C~85°C



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

USB4S012L-AG6-R

USB4S012G-AG6-R

SOT-26

Tape Reel