TPD2S300电路保护的电涌抑制IC规格书PDF中文资料

1 Features

1• 2 Channels of Short-to-VBUS Overvoltage

Protection (CC1, CC2): 24-VDC Tolerant

• 2 Channels of IEC 61000-4-2 ESD Protection

(CC1, CC2)

• Low quiescent current: 3.23 μA (Typical), VPWR,

VM = 3.3 V

• CC1, CC2 Overvoltage Protection FETs 200 mA

capable for passing VCONN power

• CC Dead Battery Resistors Integrated for handling

dead battery use case in mobile devices

• 1.4-mm × 1.4-mm WCSP Package

2 Applications

• Smartphones

• Laptop PC

• Tablets

• Wall Adaptors

• Power Banks

• Power Drills

3 Description

The TPD2S300 is a single chip USB Type-C port

protection solution that provides 20-V Short-to-VBUS

overvoltage and IEC ESD protection for the CC1 and

CC2 pins.

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 start out with 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 pins. Also, due to the close

proximity of the pins in the Type-C connector, there is

a heightened concern that debris and moisture is

going to cause the 20-V VBUS pin to be shorted to the

CC pins.

These non-ideal equipments and mechanical events

make it necessary for the CC pins to be 20-V

tolerant, even though they only operate at 5 V or

lower. The TPD2S300 enables the CC pins to be 20-

V tolerant without interfering with normal operation by

providing overvoltage protection on the CC pins. The

device places high voltage FETs in series on the 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 IEC61000-4-2 system

level ESD protection for their external pins. The

TPD2S300 integrates IEC 61000-4-2 ESD protection

for the CC1 and CC2 pins, removing the need to

place high voltage TVS diodes externally on the

connector.