TPD4S214 Datasheet, PDF (1/21 Pages) Texas Instruments – USB OTG Companion Device with VBUS Over Voltage, Over Current Protection, and Four Channel ESD Clamps

TPD4S214
www.ti.com
SLVSBR1A – JANUARY 2013 – REVISED FEBRUARY 2013
USB OTG Companion Device with V_BUS Over Voltage, Over Current Protection, and Four
Channel ESD Clamps
Check for Samples: TPD4S214
FEATURES
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• Input Voltage Protection at V_BUS from –7 V to
30 V
• Low R_DS(ON) N-CH FET Switch for High
Efficiency
• Compliant with USB2.0 and USB3.0 OTG spec
• User Adjustable Current Limit From 250 mA to
Beyond 1.2 A
• Built-in Soft-start
• Reverse Current Blocking
• Over Voltage Lock Out for V_BUS
• Under Voltage Lock Out for V_{OTG_IN}
• Thermal Shutdown and Short Circuit
Protection
• Auto Retry on any Fault; no Latching off
States
• Integrated V_BUS Detection Circuit
• Low Capacitance TVS ESD Clamp for USB2.0
High Speed Data Rate
• Internal 16ms Startup Delay
• 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 WCSP (12-YFF) Package
APPLICATIONS
• Cell Phones
• Tablet, eBook
• Set-Top Box
• Portable Media Players
• Digital Camera
YFF PACKAGE
(TOP SIDE/SEE-THROUGH VIEW)
12-YFF Pin Proposal
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A
V_{OTG_IN}
2
DET
3
VBUS
B
V_{OTG_IN}
C
EN
FLT\
GND
VBUS
ID
D
ADJ
D-
D+
1.4-mm
DESCRIPTION
The TPD4S214 is a single-chip protection solution for USB On-the-Go and other current limited USB
applications. This device includes an integrated low (R_DS(ON) N-channel current limited switch for OTG current
supply to peripheral devices. TPD4S214 offers low capacitance TVS ESD clamps for the D+, D-, ID pins for both
USB2.0 and USB3.0 applications. The VBUS pin can handle continuous voltage ranging from –7 V to 30 V. The
over voltage lock-out (OVLO) at the VBUS pin ensures that if there is a fault condition at the V_BUS line, the
TPD4S214 is able to isolate it and protects the internal circuitry from damage. Similarly, the under voltage lock
out (UVLO) at the V_{OTG_IN} pin ensures that there is no power drain from the internal OTG supply to external V_BUS
if V_{OTG_IN} droops below safe operating level.
When EN is high, the OTG switch is activated and the FLT pin indicates whether there is a fault condition. The
soft start feature waits 16 ms to turn on the OTG switch after all operating conditions are met. The FLT pin
asserts low during any one of the following fault conditions: OVLO (V_BUS > V_OVLO), UVLO condition (V_{OTG_IN} <
V_UVLO) over temperature, over current, short circuit condition, or reverse-current-condition (V_BUS > V_{OTG_IN}). The
OTG switch is turned off during any fault condition. Once the switch is turned off, the IC periodically rechecks the
faults internally. If the IC returns to normal operating conditions, the switch turns back on and FLT is reset to
high.
There is also a V_BUS detection feature for facilitating USB communication between USB host and peripheral
device. See Table 2 for detection scheme. If this is not used, DET pin can be either floating or connected to
ground.
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2013, Texas Instruments Incorporated