1 Features
1• 4-Channels of Short-to-VBUS Overvoltage
Protection (CC1, CC2, SBU1, SBU2): 24-VDC
Tolerant
• 8-Channels of IEC 61000-4-2 ESD Protection
(CC1, CC2, SBU1, SBU2, DP_T, DM_T, DP_B,
DM_B)
• CC1, CC2 Overvoltage Protection FETs 600 mA
capable for passing VCONN power
• CC Dead Battery Resistors integrated for handling
dead battery use case in mobile devices
• 3-mm × 3-mm WQFN Package

2 Applications
• Laptop PC
• Tablets
• Smartphones
• Monitors and TVs
• Docking Stations

3 Description
The TPD8S300 is a single chip USB Type-C port
protection solution that provides 20-V Short-to-VBUS
overvoltage and IEC ESD protection.
Since the release of the USB Type-C connector,
many products and accessories for USB Type-C have
been released which do not meet the USB Type-C
specification. One example of this is USB Type-C
Power Delivery adaptors that only place 20 V on the
VBUS line. Another concern for USB Type-C is that
mechanical twisting and sliding of the connector could
short pins due to the close proximity they have in this
small connector. This can cause 20-V VBUS to be
shorted to the CC and SBU pins. Also, due to the
close proximity of the pins in the Type-C connector,
there is a heightened concern that debris and
moisture will cause the 20-V VBUS pin to be shorted to
the CC and SBU pins.
These non-ideal equipments and mechanical events
make it necessary for the CC and SBU pins to be 20-
V tolerant, even though they only operate at 5 V or
lower. The TPD8S300 enables the CC and SBU pins
to be 20-V tolerant without interfering with normal
operation by providing overvoltage protection on the
CC and SBU pins. The device places high voltage
FETs in series on the SBU and CC lines. When a
voltage above the OVP threshold is detected on
these lines, the high voltage switches are opened up,
isolating the rest of the system from the high voltage
condition present on the connector.
Finally, most systems require IEC 61000-4-2 system
level ESD protection for their external pins. The
TPD8S300 integrates IEC 61000-4-2 ESD protection
for the CC1, CC2, SBU1, SBU2, DP_T (Top side D+),
DM_T (Top Side D–), DP_B (Bottom Side D+), DM_B
(Bottom Side D–) pins, removing the need to place
high voltage TVS diodes externally on the connector.