حفاظت مدار محدودکننده‌های ولتاژ گذرا (تی وی اس) تجهیزات حفاظت در برابر اضافه‌ولتاژ گذرا (اس پی دی)

Product Attributes

Introduction

The MAX14585/MAX14585A high-ESD-protected doublepole/double-throw (DPDT) switches multiplex Hi-Speed (480Mbps) USB and analog signals such as AC-coupled audio or video. These devices combine the low oncapacitance (C_ON) and low on-resistance (RON) neces­ sary for high-performance switching applications in por­ table electronics and include an internal negative supply to pass audio signals that swing below ground down to -1.8V. The devices also handle USB low-/full-speed sig­ naling and operate from a 2.7V to 5.5V supply. The devices feature a VBUS detection input (V_B) that can handle voltage up to 28V to automatically switch to the USB signal path upon detection of a valid VBUS signal (VB > VVBDET). In a dead battery situation, the voltage on V_B can supply power to the part if V_B is greater than 4.5V. The MAX14585 features internal shunt resistors on the audio path to reduce clicks and pops heard at the output. The MAX14585/MAX14585A are available in a spacesaving, 10-pin, 1.4mm×1.8mm UTQFN package and operate over the -40°C to +85°C temperature range.

Features

• Low Power Consumption
• Low Supply Current 7μA (typ)
• Single 2.7V to 5.5V Supply Operation, VCC
• Flexible Design
• Dual Power-Supply Architecture, v_B and v_CC
• ANO_ Channel Override Control Input
• High Level of Integration for Performance
• 28V-Capable v_B Input with Automatic UNC_ Selection by VBUS Detection
• Low-Capacitance Hi-Speed USB for Both Channels (UNC_ and ANO_)
• Distortion-Free Negative Signal Throughput Down to -1.8V on ANO_ Channel
• 3Ω (typ) On-Resistance
• 960MHz Bandwidth
• 0.04% THD+N Audio Channel
• ±15kV Human Body Model (HBM) ESD on COM1, COM2
• Saves Board Space
• Internal Shunt Resistor Reduces Clicks and Pops (MAX14585)
• 10-Pin, 1.4mm x 1.8mm UTQFN Package

Applications

• Cell Phones
• PDAs and Handheld Devices
• Tablet PCs