LX8233ILQ-TR数据手册集成电路（IC）的热插拔控制器规格书PDF

描述 Description

The LX8233 is a fast acting bi-directional E-Fuse switch designed both to protect circuitry connected to its output (VOUT) from transient input voltage surges on its input (VCC), and to protect VCC from overload current events coming from the load on VOUT.  It will also block the reverse discharge current from flowing from VOUT to VCC if the input supply collapses.Voltage protection features include under-voltage lockout (UVLO), and over-voltage clamping.  This clamp limits VOUT voltage allowing continued circuit operation during an input over-voltage transient condition, while UVLO ensures that VOUT remains off until VCC reaches its minimum operating threshold.  On the current side, the LX8233 protects the input from a output short circuit and/or over current condition with a 2.5A current limit circuit.Another protection feature is latching thermal shutdown of VOUT, with a fault flag output on the combined EN/FAULT pin.  Once thermal shutdown threshold is reached and the E-Fuse switch opens, the tristate EN/FAULT pin will be pulled to about 1.6V signaling to the system and potentially other connected eFuse switches that a fault has occurred.  The LX8233 latches at this level until reset by the Enable pin, DEVSLP pin, or there is a VCC power recycle.At device power up the user can initialize the DevSleep pin functionality and VOUT slew rate in one of two modes depending on the state of the FET_ON pin.  In DevSleep Disabled Mode the slew rate is set to 13ms, and VOUT shutdown is engaged when the DEVSLP pin is toggled high regardless of the state of the FET_ON pin.  In DevSleep Enabled Mode the slew rate is reduced to 1.4ms, and shutdown is engaged when the DEVSLP pin is toggled high and the FET_ON pin is low.Features50 mΩ (typical) Rdson Internal eFuse FET protected from 15 VBi-directional current blocking switchSATA DevSleep supportSAS-DISABLE supportUp to 15 V transient input range6 V output voltage clampContinuous operation during VCC surgeCurrent limit at overload and short-circuit protectionOver-temperature protectionSelectable soft-start, 13 ms or 1.4 ms rise timeUVLO detectionVQFN 2 mm x 3 mm 13L packageApplicationsHard-disk driveSolid-state driveHot swapPC cards  ROHS, PB Free-->  ROHS

简介

LX8233ILQ-TR属于集成电路（IC）的热插拔控制器。由制造生产的LX8233ILQ-TR热插拔控制器PMIC - 热插拔控制器是能提供电路内保护和控制功能的半导体，可允许带电情况下在电路中插入或拔除其他组件。热插拔控制器可用于计算机网络和通用电源系统，主要根据输出电流、受控通道数量等特性，以及自动重试、故障超时和保护等特殊功能进行区分。