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参数

FET External Vin (Min) (V) -80 Vin (Max) (V) -36 Vabsmax_cont (V) -100 Current limit (Min) (A) 0.01 Current limit (Max) (A) 500 UL recognition No Overcurrent response Current Limiting Current limit type Adjustable Fault response Auto Retry Current limit function enabled Always Rating Catalog Operating temperature range (C) -40 to 85 open-in-new 查找其它 eFuses和热插拔控制器

封装|引脚|尺寸

VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new 查找其它 eFuses和热插拔控制器

特性

  • Wide Input Supply Range: –36 V to –80 V
  • Transient Rating to –100 V
  • Programmable Current Limit
  • Programmable Current Slew Rate
  • Enable Input (EN)
  • Fault Timer to Eliminate Nuisance Trips
  • Open-Drain Fault Output (FAULT)\
  • Requires Few External Components
  • 8-Pin MSOP Package
  • APPLICATIONS
    • –48-V Distributed Power Systems
    • Central Office Switching
    • Wireless Base Station

open-in-new 查找其它 eFuses和热插拔控制器

描述

The TPS2390 and TPS2391 integrated circuits are hot swap power managers optimized for use in nominal –48-V systems. They are designed for supply voltage ranges up to –80 V, and are rated to withstand spikes to –100 V. In conjunction with an external N-channel FET and sense resistor, they can be used to enable live insertion of plug-in cards and modules in powered systems. Both devices provide load current slew rate and peak magnitude limiting, easily programmed by sense resistor value and a single-external capacitor. They also provide single-line fault reporting, electrical isolation of faulty cards, and protection against nuisance overcurrent trips. The TPS2390 latches off in response to current faults, while the TPS2391 periodically retries the load in the event of a fault.

open-in-new 查找其它 eFuses和热插拔控制器
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技术文档

= 特色
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类型 标题 下载最新的英文版本 发布
* 数据表 Simple -48-V Hot Swap Controller 数据表 2008年 1月 9日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
技术文章 How can a load switch extend your device’s battery life? 2018年 3月 20日
技术文章 How and why you should use load switches for power sequencing 2018年 2月 6日
技术文章 How to use load switches and eFuses in your set-top box design 2017年 11月 23日
技术文章 Don’t leave it floating! Power off your outputs with quick output discharge 2016年 12月 9日
选择指南 Hot Swap Selection Tool 2015年 7月 28日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
$49.00
说明

The -48 V TPS2391 hot swap EVM contains all the components needed to implement a complete telecom hot swap interface. In addition, it contains some additional components and PCB patterns to facilitate evaluation of the device.

特性
  • Wide input supply range of -36 V to 80 V
  • Transient rating to -100 V
  • Programmable current limit
  • Programmable current slew rate
  • Enable input (EN)
  • Fault timer to eliminate nuisance trips
  • Open-drain fault output
  • 8-pin MSOP package

设计工具和仿真

计算工具 下载
SLVC031A.ZIP (506 KB)

CAD/CAE 符号

封装 引脚 下载
VSSOP (DGK) 8 视图选项

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