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概览

描述

This IC targets dual voltage hot swap applications across the +2. 5V to +3. 3V (nominal) bias supply voltage range with a second lower voltage rail down to less than 1V where a circuit breaker response to an over current event is preferred. It features a charge pump for driving external N-Channel MOSFETs, accurate programmable circuit breaker current thresholds and delay output undervoltage monitoring and reporting and adjustable soft-start. The circuit breaker current level (ICB) for each rail is set by two external resistors, and for each rail a delay (tCB) is set by an external capacitor on the TCB pin. After tCB has expired, the IC then quickly pulls down the associated GATE(s) output turning off its external FET(s).

特性

  • Fast Circuit Breaker Quickly Responds to Overcurrent Fault Conditions
  • Less than 1µs Response Time to Dead Short
  • Programmable Circuit Breaker Level and Delay
  • Two Levels of Overcurrent Detection Provide Fast Response to Varying Fault Conditions
  • Overcurrent Circuit Breaker and Fault Isolation Functions
  • Adjustable Circuit Breaker Threshold as Low as 20mV
  • Adjustable Voltage Ramp-up for In-Rush Protection During Turn-On
  • Rail Independent Control, Monitoring and Reporting I/O
  • Dual Supply Hot Swap Power Distribution Control to <1V
  • Charge Pump Allows the Use of N-Channel MOSFETs
  • QFN Package:
  • Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline
  • Near Chip Scale Package Footprint, Which Improves PCB Efficiency and has a Thinner Profile
  • Pb-Free (RoHS Compliant)

产品对比

应用

设计和开发

软件与工具

软件与工具

Software title
Software type
公司
iSim:PE 离线模拟工具
iSim Personal Edition(iSim:PE )可加快设计周期并降低项目早期风险,确定可用于当前和下一代设计的部件。
Simulator 瑞萨电子
1 item

模型

ECAD 模块

点击产品选项表中的 CAD 模型链接,查找 SamacSys 中的原理图符号、PCB 焊盘布局和 3D CAD 模型。如果符号和模型不可用,可直接在 SamacSys 请求该符号或模型。

Diagram of ECAD Models

模型

类型 文档标题 日期
模型 - iSim 登录后下载 SXSCH 126 KB
1 item

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