The USB Type-C interface, also known as the USB Type-C connector.The advantages include:

 1)Simple to use . 

2)Support forward and reverse insertion,it's convenient. 

3)Support ultra-high rate communication function and power output. The maximum transmission rate is 10Gbits/S, the maximum output power is 100W, and the maximum current is 5A. 

4)Dimensions 8.3mm X 2.5mm.  

5)Has good technical compatibility: (1) Vertical compatibility (compatibility with old devices): simple compatibility with USB2.0, low-cost conversion; (2) Horizontal compatibility (compatibility with other protocols): DP , MHL, Audio signals are all reconfigured to share the interface.

一、Application Background

The Type-C interface needs to support hot swap, so it is more vulnerable to electrostatic dischargeof the human body.Its interior is a highly integrated chip, and electrostatic discharge does more damage to the interface.At the same time, the Type-C interface has a higher data transmission rate and has stricter requirements on the data transmission fault tolerance rate.In view of this electrostatic protection requirement and the actual circuit environment,the following is the USB type-C interface electrostatic protection solution designed by SOCAY.

二、Socay Solution and Components

Socay Solution and Components

TVS Diode

TVS【SMF24A】Vbr：26.7-29.5V；Ir：5μA；Vrwm：24.0V，Ipp：5.14A；Vc (V) :38.9V;Package：SOD-123

ESD Suppressor

ESD【ULC0524P】Vrwm：5.0V；Vb：6.0V；Vesd：8KV/15KV；C（f=1MHz）：0.8pF；Package:DSON-10

ESD【ESD05V88D-LC】Vrwm：5.0V；Vb：6.0V；Vesd：8KV/15KV；C（f=1MHz）：0.3pF；Package: SOD-882

三、Application Solution

1. Mobile phone

2. Laptop

3. Tablet

4. Other equipment with type-C port

四、Application Note

1. In the power supply part of the Type-c interface, a large current TVS is used for surge and electrostatic protection against the ground.

2. The signal part uses an array ESD, which is small in size, saves PCB space and is easy to design

3. Adopt low-capacitance ESD devices to meet high-speed transmission requirements

For more electrostatic protection solutions and devices, please go directly to the Socay Electronics website to consult the online customer service http://www.socay.com/.