MXLCE17A Circuit Protection

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Introduction

TVS (Transient Voltage Suppression) diodes are designed to protect sensitive electronic components from the damaging effects of voltage transients generated by lightning, power line or load faults. The MXLCE17A is one of the latest TVS diodes developed by Maxim Integrated. This article will discuss the application field and working principle of the MXLCE17A.

Application Field

MXLCE17A is a robust TVS device designed for high-speed data applications where transient voltage protection is required. It is designed for SSTL (Stretched from Symmetrical Transitions Level) signaling applications such as DDR 1 and DDR 2 SDRAM, as well as other high-speed applications. MXLCE17A can also be used for interface protection in routers, telecom equipment, firewalls, switches, and other networking devices.

Working Principle

The working principle of the MXLCE17A is based on the principle of diode clamping. When a voltage transient exceeds the breakdown voltage (Vbr) of the diode, it will begin to conduct and reduce the voltage of the protected device to a safe level. A normal diode acts like a short circuit when forward biased, and therefore can be used to limit the current flow through the protected device. MXLCE17A also has an integrated TVS diode, which is designed to provide ESD (Electrostatic Discharge) protection.

When an ESD event occurs, the MXLCE17A will limit the voltage applied to the protected device by shunting the transient energy to ground. This will prevent damage to the device from the ESD event. In addition, the MXLCE17A also provides EMI (Electromagnetic Interference) attenuation by filtering out EMI. This is accomplished by using an integrated capacitance matrix to reduce the peak amplitudes of the signal.

Conclusion

The MXLCE17A is a robust TVS device designed for high speed data applications where transient voltage protection is required. It is designed to limit current flow to protect sensitive devices, and to attenuate EMI noise. It can be used for SSTL signalling applications such as DDR 1 and DDR 2 SDRAM, as well as for interface protection in networking devices. With its robust design and high performance characteristics, the MXLCE17A is an excellent choice for high speed data applications.

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