ECLAMP2522P (SEMTECH)

The ECLAMP2522P is an USB upstream Port Filter and TVS Diode for EMI filtering and ESD protection. It is an easily implemented solution for protection and termination of low speed or full speed Universal Serial Bus (USB) ports. Each device will provide termination, filtering and ESD protection for one upstream USB port on cellular phones and other portable electronics. This state-of-the-art device utilizes solid-state silicon-avalanche technology for superior clamping performance and electrical characteristics. TVS diodes are also included on each data line for ESD protection in excess of ±15kV (air discharge) and ±8kV (contact discharge) per IEC 61000-4-2, level 4. An additional TVS diode connection is included for protection of the voltage (V Bus) bus. The 1.5kR pull-up resistor is included on one of the USB data lines to identify the equipment as either a full-speed (connected to D+ line) or low-speed (connected to D- line) device.