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电流调节热插拔控制器,带有DualSpeed/BiLevel故障保护

产品详情

主要特征

Parametric specs for Hot Swap Controllers
VIN (V) (min) 2.7
VIN (V) (max) 13.2
# Channels 1
Circuit Breaker/ Current Limit Current Limit
Circuit Breaker/Current Limit Threshold (mV) 50
Fault Condition Control Latched Off
Positive/Negative Rail Positive
Features DualSpeed/BiLevel Current Limit
Package/Pins SOIC (N)/8
Budgetary
Price (See Notes)
3.62
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参量

Parametric specs for Hot Swap Controllers
VIN (V) (min) 2.7
VIN (V) (max) 13.2
# Channels 1
Circuit Breaker/ Current Limit Current Limit
Circuit Breaker/Current Limit Threshold (mV) 50
Fault Condition Control Latched Off
Positive/Negative Rail Positive
Features DualSpeed/BiLevel Current Limit
Package/Pins SOIC (N)/8
Budgetary
Price (See Notes)
3.62

主要特征

  • DualSpeed/BiLevel Protection During Normal Operation
  • Inrush Current Regulated at Start-Up
  • Resides Either on the Backplane or on the Removable Card
  • Programmable Start-Up Period and Response Time
  • Allows Safe Board Insertion and Removal from Live Backplane
  • Protection for +3V to +12V Single Supplies
  • Latched Off After Fault Condition
  • Status Output Pin
  • Internal Charge Pump Generates Gate Drive for External N-Channel MOSFET

应用/用途

  • 热插拔板
  • 固态电路断路器

描述

The MAX4370 is a circuit-breaker IC designed to offer protection in hot-swap applications using Maxim's DualSpeed/BiLevel™ detection. This controller, designed to reside either on the backplane or on the removable card, is used to protect a system from start-up damage when a card or board is inserted into a rack with the main system power supply turned on. The card's discharged filter capacitors provide a low impedance that can momentarily cause the main power supply to collapse. The MAX4370 prevents this start-up condition by providing inrush current regulation during a programmable start-up period, allowing the system to stabilize safely. In addition, two on-chip comparators provide DualSpeed/BiLevel short-circuit protection and overcurrent protection during normal operation.

The MAX4370 provides protection for a +3V to +12V single supply. An internal charge pump generates the controlled gate drive for an external N-channel MOSFET power switch. The MAX4370 latches the switch off after a fault condition until an external reset signal clears the device. Other features include a status pin to indicate a fault condition, an adjustable overcurrent response time, and a power-on reset comparator.

The MAX4370 is specified for the extended-industrial temperature range (-40°C to +85°C) and is available in an 8-pin SO package.

简化框图

MAX4370:典型工作电路 MAX4370:典型工作电路 Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心