TPD8S300ARUKRG4.A中文资料德州仪器数据手册PDF规格书

1 Features

1• 4-Channels of Short-to-VBUS Overvoltage

Protection (CC1, CC2, SBU1, SBU2 or

CC1, CC2, DP, DM): 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 and 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

• Advantages over TPD8S300

– Improved Dead Battery Performance

– USB Type-C Port Stays Connected during an

IEC 61000-4-2 ESD Strike

• 3-mm × 3-mm WQFN Package

2 Applications

• Laptop PC

• Tablets

• Smartphones

• Monitors and TVs

• Docking Stations

3 Description

The TPD8S300A is a single-chip USB Type-C port

protection device 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 that 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

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 the pins only operate at 5 V

or lower. The TPD8S300A 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 external pins. The

TPD8S300A integrates IEC 61000-4-2 ESD

protection for the CC1, CC2, SBU1, SBU2, DP, and

DM pins, eliminating the need to place high voltage

TVS diodes externally on the connector.