Reference Designs

TIDA-00845 is a dual-port USB 2.0 hub with the ability to withstand a short of up to 18-V DC on both downstream ports: as well as Level 4 IEC 61000-4-2 ESD protection: overcurrent conditions: and shorts to ground. This protection is provided by an integrated protection device - the TPD3S714-Q1. With short-to-battery (STB) protection: short-circuit protection: and a fixed current-limit load switch on both downstream ports: the TUSB4020BI USB 2.0 hub is isolated and protected from overvoltage and overcurrent conditions. Downstream port 1 includes a STB test simulator for applying 18-V DC: and two TPD3S714-Q1s to protect both the hub and a peripheral for easily demonstrating USB STB protection functionality.