Datasheet

UNISONIC TECHNOLOGIES CO., LTD
USB4S012
Preliminary
TVS
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
levels. For example, some chargers require the VBUS port of the
USB connector to handle in excess of the normal VBUS voltage per
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
* 3 Amps Peak Pulse Current (8/20μs Pulse) for VBUS and
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
* VBUS Line (VBUS)
– 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
Lead Free
Halogen Free
USB4S012L-AG6-R
USB4S012G-AG6-R
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
Package
Packing
SOT-26
Tape Reel
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USB4S012

Preliminary
TVS
MARKING INFORMATION
PACKAGE
MARKING
SOT-26

PIN CONFIGURATION

PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6

PIN NAME
VBUS
NC
GND
ID
DD+
DESCRIPTION
ESD clamp for high-voltage tolerant VBUS line(s)
Not internally connected
Ground
Provides ESD protection to the high-speed differential data lines
Provides ESD protection to the high-speed differential data lines
Provides ESD protection to the high-speed differential data lines
BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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USB4S012

Preliminary
TVS
ABSOLUTE MAXIMUM RATING over operating free-air temperature range (unless otherwise noted)
PARAMETER
SYMBOL
RATINGS
UNIT
VBUS Voltage Tolerance
VBUS pin
-0.3~20
V
IO Voltage Tolerance
D+, D–, ID pins
-0.3~6
V
IEC 61000-4-2 Contact Discharge
D+, D–, ID
±10
kV
IEC 61000-4-2 Air-Gap Discharge
D+, D–, ID
±10
kV
IEC 61000-4-2 Contact Discharge
VBUS pin
±10
kV
IEC 61000-4-2 Air-Gap Discharge
VBUS pin
±9
kV
Peak pulse power (tp = 8/20 μs)
D+, D–, ID, VBUS pins
60
W
Peak pulse current (tp = 8/20 μs)
D+, D–, ID, VBUS pins
3
A
Storage Temperature Range
TSTG
-65~125
°C
Operating Free-Air Temperature Range
TA
-40~85
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
SYMBOL
TEST CONDITIONS
VBUS=5V
VBUS Operating Current
IVBUS
D+, D–, ID pins open
VBUS=19V
VIO=2.5V,
D+, D–, ID pins
IO Port Current
IIO
VBUS=5V
D+, D–, ID pins (lower clamp
Diode Forward Voltage
VD
IIO=8mA
diode)
VBUS Pin Capacitance
CVBUS
VBUS=5V
IO Capacitance
CIO
VIO=2.5V D+, D–, ID pins (DRY package)
D+, D–, ID, and VBUS pins,
IIO=1.5A including central clamp dioded
during positive ESD pulse
Dynamic Resistance
RDYN
D+, D–, ID, and VBUS pins,
including central clamp diode
IIO=1A
during negative ESD pulse
D+, D–, ID pins
Breakdown Voltage
VBR
IIO=1mA
VBUS pin(s)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
0.6
TYP
MAX
UNIT
0.1
0.5
0.1
0.5
μA
0.8
0.95
V
11
0.8
15
1
pF
pF
μA
1.2
Ω
1
6
20
9
24
V
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
Preliminary
TVS
TYPICAL APPLICATION CIRCUIT
VBUS
VBUS
PMU/USB
Controller
D+
D+
D-
D-
ID
ID
GND
GND
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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