微桥科技产品新闻动态管理发布系统 现在是
首页 ·公司动态 ·产品动态 ·原厂动态 ·行业动态 ·技术资料 ·LED驱动 ·DC-DC ·AC-DC ·MOSFET ·音频功放 ·电池管理 ·霍尔及马达驱动 ·其他 ·联系我们

当前位置:首页>>其他>>Load Switch负载开关 >>EUP3542-Dual Power-Distribution Switch   双击自动滚屏
发布者:来自网络 发布时间:2014/7/24 阅读:5181次    关键字: DC-DC
EUP3542-Dual Power-Distribution Switch


EUP3542-Dual Power-Distribution Switch with Fault-Blanking DataSheet

DESCRIPTION


   The EUP3542 incorporates dual 100m  P-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input.
When either output load exceeds the current-limit threshold or a short is present, the device limits the outputs current to a safe level by switching into a constant-current limit mode with fold back, pulling the over-current (OCB(s)) logic output low. When continuous heavy overloads or short-circuits increase the power dissipation in the switches, causing the junction temperature to raise, a thermal protection circuit shutdown the switches to prevent damage.
Internal Under Voltage Lock-Out (UVLO) circuitry ensures that the switches remain off until valid input voltage is present. Each power switch is designed to set current limit at 1A_typical for EUP3542 and 2.5A_typical for EUP3542-15 respectively.
OCB(s) are open-drain outputs which are asserted when over-current occurs. A 8ms fault-blanking feature
enables the circuit to ignore momentary faults, such as those caused when hot-swapping a capacitive load,
preventing false alarms to the host system. The EUP3542 eliminates any reversed current flow across
each switch when it is powered off.
The EUP3542 is available in MSOP-8 or SOP-8 package, operates over the extended (-40°C to +85°C)
temperature range.

FEATURES

•  Dual 100m_ High-Side MOSFET
•  1A Current Limits with Fold-back
•  Operating Range:2.7V to 5.5V
•  300µS Typical Rise Time
•  Under voltage Lockout
•  15µA Quiescent Supply Current
•  1µA Shutdown Supply Current
•  Logic Level Enable Pin, Available with Active-Low Version
•  No Reverse Current when Power Off
•  Open-Drain Over-Current Flag Outputs with fault-blanking
•  Available in SOP-8 Package
•  RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free

APPLICATIONS

•  High-Side Power Protection Switch
•  USB Power Management
•  USB Host and Self-Powered Bubs
•  USB Bus-Powered Hubs
•  Hot Plug-In Power Supplies
•  Battery-Charger Circuits
•  Short-Circuit Protections

本文共分 1

  • 上篇文章EUP3545A-USB Power-Distribution Switch
  • 下篇文章EUP3546-Dual Power-Distribution Switch
  •  
     

    版权所有 Copyright Micro Bridge Technology Co.,Ltd. All rights reserved.粤ICP备05065909号