LCDP1521中文资料Dual protection for single voltage SLICs数据手册ST规格书

描述 Description

This device has been designed to protect 2 new high voltage, as well as classical SLICs against transient overvoltages.
Positive overvoltages are clamped by 2 diodes. Negative surges are suppressed by 2 thyristors, their breakdown voltage being referenced to -VBATthrough the gate.
This component presents a very low gate triggering current (IGT) to reduce the current consumption on printed circuit boards during the firing phase.

特性 Features

• dual-line programmable transient voltage suppressor
• wide negative firing voltage range
• VMGL= -150 V max.
• low dynamic switching voltages: VFPand VDGL
• low gate triggering current: IGT= 5 mA max.
• peak pulse current: IPP= 20 A (10/1000 μs)
• holding current: IH= 150 mA min.
• Benefits
• A Trisil™ is not subject to ageing and provides a fail safe mode in short circuit for better protection.
• Trisils are used to help equipment meet various standards such as UL1950, IEC 950 / CSA C22.2, UL1459 and FCC part68.
• Trisils have UL94 V0 approved resin.
• Trisils are UL497B approved (file: E136224).

简介

LCDP1521属于电路保护的TVS-晶闸管。由ST制造生产的LCDP1521TVS - 晶闸管基于晶闸管的瞬态电压抑制 (TVS) 器件可用于提供过压保护，在正常工作条件下近似于开路。在这些器件两端施加超过某个特定值的电压（称为击穿电压），可使它们进入近似于短路的导通状态。?这种状态一直持续至流过器件的电流因电路中的一些外部影响而降低到称为“保持电流”的最小值以下。