SEMTECH RCLAMP1255P.TGT

RailClamp TVS arrays are low-capacitance ESD protection devices designed to protect high-speed data interfaces. The RClamp1255P provides dedicated surge and ESD protection for micro USB ports, designed to replace multiple discrete components in portable applications. The device incorporates low-capacitance TVS diodes to protect USB data lines (DP, DM) and the USB ID pin operating at voltages up to +/- 4V. These diodes provide ESD protection for ±10kV contact discharge per IEC 61000-4-2. Load capacitance on these lines is < 0.50pF. An integrated 12V TVS diode protects the USB voltage bus. The VBus TVS is designed with high surge current capability of 100A (tp = 8/20μs) and low clamping voltage.

The RClamp1255P comes in a 6-pin SLP2018P6 package measuring 2.0 × 1.8mm with a nominal height of 0.57mm. This highly integrated device occupies less board space compared to existing solutions.

The combination of small size, low capacitance, and high-level surge and ESD protection makes this device a versatile solution for protecting USB interfaces in mobile phones, laptops, and other portable electronics.

• ESD and surge protection for USB VBUS, compliant with IEC 61000-4-2 (ESD) ±30kV (air), ±30kV (contact); IEC 61000-4-5 (surge) 100A (8/20μs); IEC 61000-4-4 (EFT) 40A (5/50ns)
• ESD protection for USB data lines, compliant with IEC 61000-4-2 (ESD) ±15kV (air), ±10kV (contact)
• Protects USB DP, DM, and ID pins with operating voltage up to +/-4V
• Protects USB VBUS with operating voltage up to 12V
• Low capacitance on DP, DM, and ID pins (< 0.50pF)
• Low clamping voltage
• Low dynamic resistance on DP, DM, and ID pins
• Solid-state silicon avalanche technology

• USB 2.0
• USB OTG
• Micro USB