USB3740B-AI9-TR is a low-power USB 2.0 multiplexer with integrated ESD protection for portable and industrial devices

The USB3740B‑AI9‑TR is a high‑speed USB 2.0 switch from Microchip, designed for signal multiplexing and ESD protection in portable and industrial systems. It supports data rates up to 480 Mbps with 1 GHz bandwidth, integrating robust ESD protection and ultra‑low power consumption in a compact 10‑pin QFN package.

• High‑Speed Multiplexing
  • 2‑to‑1 USB 2.0 mux for switching between two DP/DM signal sources
  • 1 GHz bandwidth ensures excellent signal integrity at 480 Mbps
• Integrated ESD Protection
  • ±15 kV IEC contact/air discharge protection on DP/DM pins
  • Eliminates need for external ESD components, reducing BOM cost
• Ultra‑Low Power
  • 30 nA typical active/standby current, ideal for battery‑powered devices
  • Supports 1.8 V-5.5 V supply voltage with flexPWR™ technology
• Simplified Control & Robustness
  • Two‑pin control (OE_N, S) for easy configuration
  • Operating temperature: −40°C to 85°C (industrial range)
  • 10‑pin QFN (1.6*2.1 mm) for space‑constrained designs

• Mobile & Portable: Smartphones, tablets, laptops, power banks
• Consumer Electronics: USB hubs, docking stations, audio/video devices
• Industrial & Automotive: Industrial controllers, IoT sensors, in‑vehicle infotainment
• Medical Devices: Portable diagnostic equipment (ECG, EEG, ultrasound)