TPD4S014_1110 Datasheet, PDF (1/17 Pages) Texas Instruments – COMPLETE PROTECTION SOLUTION FOR USB CHARGER PORT INCLUDING ESD PROTECTION FOR ALL LINES AND

TPD4S014
www.ti.com
SLVSAU0B – MAY 2011 – REVISED OCTOBER 2011
COMPLETE PROTECTION SOLUTION FOR USB CHARGER PORT
INCLUDING ESD PROTECTION FOR ALL LINES AND
OVER-VOLTAGE PROTECTION ON VBUS
Check for Samples: TPD4S014
FEATURES
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• Input Voltage Protection at VBUS up to 28V
• Low Ron nFET Switch
• Supports >2A charging current
• Over Voltage and Under Voltage Lock Out
Features
• Low Capacitance TVS ESD Clamp for USB2.0
High speed Data Rate
• Internal 16ms Startup Delay
• Integrated Input Enable and Status Output
Signal
• Thermal Shutdown Feature
• ESD Performance D+/D–/ID/V_BUS Pins
– ±15-kV Contact Discharge (IEC 61000-4-2)
– ±15-kV Air Gap Discharge (IEC 61000-4-2)
• Space Saving QFN Package (2mm×2mm)
APPLICATIONS
• Cell Phones
• eBook
• Portable Media Players
• Digital Camera
DSQ PACKAGE
(TOP SIDE/SEE-THROUGH VIEW)
V_BUSOUT ¹
V_BUSOUT
EN
10 V_BUS
V_BUS
GND
ACK
D+
ID ⁵
6 D-
DESCRIPTION
The TPD4S014 is a single-chip solution for USB charger port protection. This device offers low capacitance TVS
type ESD clamps for the D+, D- and standard Capacitance for the ID pin. On the VBUS pin, this device can
handle over-voltage protection up to 28V. The over voltage lock-out feature ensures that if there is a fault
condition at the VBUS line, the TPD4S014 is able to isolate the VBUS line and protects the internal circuitry from
damage. Similarly, the under voltage lock out feature ensures that there is no power drain from the internal VCC
plane to external VBUS side in case there is short to GND. There is a 16ms turn-on delay after VBUS crosses
the under voltage lockout threshold, in order to let the voltage stabilize before closing the switch. This function
acts as a deglitch and prevents unnecessary switching if there is any ringing on the line during connection.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated