LTC1642A - Hot Swap Controller

The LTC1642A is a 16-pin Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. Using an external N-Channel pass transistor, the board supply voltage can be ramped up at an adjustable rate. A high side switch driver controls the N-Channel gate for supply voltages ranging from 2.97V to 16.5V.

The SENSE pin allows foldback limiting of the load current, with circuit breaker action after an adjustable delay time. The delay allows the part to power-up in current limit. The CRWBR output can be used to trigger an SCR for crowbar protection of the load if the input supply exceeds an adjustable threshold. The RESET output can generate a system reset with adjustable delay when the supply voltage falls below an adjustable threshold. The ON pin cycles the board power. The LTC1642A is available in the 16-pin SSOP package.

Hot Swap is a trademark of Linear Technology Corporation.

特点
  • Adjustable Undervoltage and Overvoltage Protection
  • Foldback Current Limit
  • Adjustable Current Limit Time-Out
  • VCC: 2.97V to 16.5V Normal Operation, Protected Against Surges to 33V
  • Single Channel NFET Driver
  • Latch Off or Automatic Retry on Current Fault
  • Driver for SCR Crowbar on Overvoltage
  • Adjustable Reset Timer
  • Reference Output with Uncommitted Comparator
  • 16-Pin SSOP Package
典型应用
LTC1642A Typical Application
应用
  • Hot Board Insertion
  • Electronic Circuit Breaker
  • InfiniBandTM Systems
封装信息
LTC1642A Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LTC1642ACGN#PBFSSOP-16C$4.15$3.50
LTC1642ACGN#TRPBFSSOP-16C$3.56
LTC1642AIGN#PBFSSOP-16I$5.00$4.20
LTC1642AIGN#TRPBFSSOP-16I$4.26
数据表
可靠性数据
产品选择卡
CAD 符号
相关产品
LTC1642A - Hot Swap Controller
R318 Reliability Data
Hot Swap Controllers
LTC1642A Footprints and Symbols