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USBLC6-2SC6 Low Capacitance ESD Protection for USB

A very low capacitance ESD protection diode network for USB 2.0, Ethernet, SIM Card and Video line

ESD protection is necessary for common electronic products, but incorporating diode protection can introduce capacitance which reduces the bandwidth of data transmission lines. The USBLC6-2SC6 is an integrated ESD protection solution that incorporates multiple diodes, can protect two data lines and is also capable of protecting the bus voltage of that transmission line. With a low capacitance of 3.5pF and low leakage current of 150nA, the USBLC6-2SC6 has carefully matched I/O channels (max capacitance difference of 0.015pF) that helps to prevent additional EMI as well as enabling high-speed USB, full speed USB 1.1 and Ethernet ports up to 100 Mb/s. The IEC61000-4-2 level 4 compliance ensures that devices connected to the USBLC6-2SC6 are protected from ESD.

Drawings / Package

Key Features

2 matched data line protection
Bus voltage also protected
Low leakage current of 150 nA
IEC61000-4-2 level 4 protection
- 15-kV air discharge
- 8-kV contact discharge
MIL STD883G-Method 3015-7 protection of 25 kV
Fast response time
High reliability due to monolithic integration
Small PCB retail space used

General Applications

USB 2.0 at 480 Mb/s and USB 1.1 at full speed
Ethernet ports up to 100 Mb/s
SIM card protection
Video line protection
Consumer equipment with exposed conductors
- Connectors
- Switches
- External sensors

Evaluation Board

No evaluation board is available for the USBLC6-2SC6. When integrating the USBLC6-2SC6 into products it’s important to protect the bus voltage by keeping traces to the power line as small as possible. Running the power trace below the IC keeps the line as short as possible which reduces the impedance and therefore maximises the protection capability. The USBLC6-2SC6 should also be placed as close to the potential source of ESD. In typical applications, this would be close to the external connector.