LCP3121

® LCP3121 Application Specific Discretes A.S.D.™ OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE FEATURES AND BENEFITS s UNIDIRECTIONAL OVERVOLTAGE SUPPRESSOR PROGRAMMABLE BY VOLTAGE AND CURRENT: s PROGRAMMABLE BREAKDOWN VOLTAGE UP TO 100 V. s PROGRAMMABLE CURRENT LIMITATION FROM 120 mA TO 600 mA. s MULTI-LINE PROTECTION MODE : ONE DE- VICE CAN PROTECT SEVERAL LINES. )s HIGH SURGE CURRENT CAPABILITY : t(sIPP = 100A for 10/1000 µs. DESCRIPTION ucDedicated to the protection of sensitive telecom dequipment, the LCP3121 provides protection rowhich can be programmed by both voltage and Pcurrent. teThe breakdown voltage can be easily programmed by using an external zener diode. leThe protection function programmed by the ocurrent is achieved with the use of a resistor bsbetween the gate and the cathode. The value of the resistor will determine the level of the desired Ocurrent before the triggering of the device. ) -A multiple protection mode is also performed when t(susi...