Contents
How do you protect a circuit from electrostatic discharge?
Suppression components protect the circuit by clamping the ESD voltage to a level that the circuit can survive. Connected in parallel with the signal lines, the suppressors clamp the ESD voltage and shunt the majority of the ESD current away from the data line, and the protected chip, to the appropriate reference.
How does an ESD diode work?
In the event of an ESD strike, the ESD diode would breakdown and create a low impedance path that limits the peak voltage and current by diverting the current flow to ground, thereby protecting the IC .
How is ESD protection on a USB port?
This may lead to an ESD event reaching thresholds of tens of thousands of volts. ESD can lead to damage of the delicate internal circuitry of the host or peripheral transceiver. ESD protection is achieved by placing a transient voltage suppression (TVS) diode between the USB port and the USB controller.
How does a suppression circuit protect the ESD?
Suppression components protect the circuit by clamping the ESD voltage to a level that the circuit can survive. Connected in parallel with the signal lines, the suppressors clamp the ESD voltage and shunt the majority of the ESD current away from the data line, and the protected chip, to the appropriate reference. 2.
Who is the US specialist in ESD protection?
Dr. Robert Ashton, an ESD protection specialist from the United States, said that in general the classification of ESD protection components can be made through their protection strategies and directionality, including varistors, polymers and TVS, As shown in Table 1.
What kind of ESD protection does Semtech offer?
Semtech’s RClamp®0582B, a dual-channel device, can be used to protect D+ and D- lines. RClamp0582B provides transient protection as per the specification in IEC 61000-4-2 (ESD) at ±30kV (Air) and ±30kV (Contact). It is built in the industry standard SOT-523 package.