Protecting electronic circuits & interfaces from ESD

25th August 2015

Nat Bowers

0 0

Whitepaper

Designers of today’s electronic devices have demanded more functionality with greater flexibility and higher levels of user interaction. These circumstances have helped in driving the development of nanometre chipsets along with a multitude of user interfaces or ports. The confluence of these two has made electronic devices more susceptible to ESD and required the need for a more robust solution.

Littelfuse's SPA family of TVS Diode Arrays are suited for suppressing ESD as their speed and clamping levels are essential to protect today’s ICs unlike the previous MLV, MOV and polymer technologies. The SPA portfolio offers a wide range of devices to suit the majority of application needs available in the market today, and this guide will steer the designer toward the appropriate ESD device for the particular application they’re trying to protect.

Applications discussed in this guide include: USB1.1/2.0/3.0; analogue video; HDMI; SIM sockets; DisplayPort; RS-232; DVI; RS-485; 10/100/1000 Ethernet; CAN bus; eSATA; audio (speaker/microphone); 1394a/b; keypad/push button; LVDS; and LCD/camera display interfaces.

Many of these applications can be found in electronic devices such as: PCs; MP3/PMPs; portable medical devices; PDAs; set top boxes; digital cameras; LCD/PDP TVs; SIM/SD cards; portable navigation devices; external storage; keyboards/mouses; switches/routers; mobile handsets; and smartphones.