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 levels. for example, some chargers require the v bus port of the usb connector to handle in excess of the normal v bus voltage per usb specifications. the utc USB4S012 offers combinations of two different clamp voltages to ma tch 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 ? a10-kv iec 61000-4-2 contact discharge ? a10-kv iec 61000-4-2 air-gap discharge * 3 amps peak pulse current (8/20 s pulse) for v bus 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 * v bus line (v bus ) ? 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: ?40c~85c ? ordering information ordering number package packing lead free halogen free USB4S012l-ag6-r USB4S012g-ag6-r sot-26 tape reel
USB4S012 preliminary tvs unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r215-010.a ? marking information package marking sot-26 ? pin configuration ? pin description pin no. pin name description 1 v bus esd clamp for high-voltage tolerant vbus line(s) 2 nc not internally connected 3 gnd ground 4 id provides esd protection to the high-speed differential data lines 5 d- provides esd protection to the high-speed differential data lines 6 d+ provides esd protection to the high-speed differential data lines ? block diagram
USB4S012 preliminary tvs unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r215-010.a ? absolute maximum rating over operating free-air temperat ure range (unless otherwise noted) parameter symbol ratings unit v bus voltage tolerance v bus pin -0.3~20 v io voltage tolerance d+, d?, i d 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 v bus pin 10 kv iec 61000-4-2 air-gap discharge v bus pin 9 kv peak pulse power (tp = 8/20 s) d+, d?, id, v bus pins 60 w peak pulse current (tp = 8/20 s) d+, d?, id, v bus pins 3 a storage temperature range t stg -65~125 c operating free-air te mperature range t a -40~85 c note: absolute maximum ratings are those values beyo nd which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? electrical characteristics over operating free-air temperatur e range (unless otherwise noted) parameter symbol test conditions min typ max unit v bus operating current i vbus v bus =5v d+, d?, id pins open a v bus =19v 0.1 0.5 io port current i io v io =2.5v, v bus =5v d+, d?, id pins 0.1 0.5 a diode forward voltage v d i io =8ma d+, d?, id pins (lower clamp diode) 0.6 0.8 0.95 v v bus pin capacitance c vbus v bus =5v 11 15 pf io capacitance c io v io =2.5v d+, d?, id pins (dry package) 0.8 1 pf dynamic resistance r dyn i io =1.5a d+, d?, id, and v bus pins, including central clamp dioded during positive esd pulse 1.2 ? i io =1a d+, d?, id, and v bus pins, including central clamp diode during negative esd pulse 1 breakdown voltage v br i io =1ma d+, d?, id pins 6 9 v v bus pin(s) 20 24
USB4S012 preliminary tvs unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r215-010.a ? typical application circuit v bus gnd d+ d- id pmu/usb controller v bus d+ d- id 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.
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