LTC1642 Hot Swap Controller

The LTC®1642 is a 16-pin Hot SwapTM 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 above 2.97V.

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 LTC1642 is available in the 16-pin SSOP package

产品特点 Features
  • Adjustable Undervoltage and Overvoltage Protection
  • Foldback Current Limit
  • Adjustable Current Limit Time-Out
  • 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
参数
LTC1642 参数
应用
  • Hot Board Insertion
  • Electronic Circuit Breaker
  • InfiniBandTM Systems
典型应用图
LTC1642 典型应用
LTC1642 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LTC1642ACGN SSOP 16 C $4.15 $3.50
LTC1642ACGN#PBF SSOP 16 C $4.15 $3.50
LTC1642ACGN#TR SSOP 16 C $3.56
LTC1642ACGN#TRPBF SSOP 16 C $3.56
LTC1642AIGN SSOP 16 I $5.00 $4.20
LTC1642AIGN#PBF SSOP 16 I $5.00 $4.20
LTC1642AIGN#TR SSOP 16 I $4.26
LTC1642AIGN#TRPBF SSOP 16 I $4.26
LTC1642CGN SSOP 16 C $4.15 $3.50
LTC1642CGN#PBF SSOP 16 C $4.15 $3.50
LTC1642CGN#TR SSOP 16 C $3.56
LTC1642CGN#TRPBF SSOP 16 C $3.56
LTC1642IGN SSOP 16 I $5.00 $4.20
LTC1642IGN#PBF SSOP 16 I $5.00 $4.20
LTC1642IGN#TR SSOP 16 I $4.26
LTC1642IGN#TRPBF SSOP 16 I $4.26
LTC1642 数据手册及相关资料下载
  1. 数据手册(英文) : LTC1642 - Hot Swap Controller.PDF
  2. 设计要点 (英文) : DN265 - Hot Swap Circuit Meets InfiniBand Specification.PDF
  3. 可靠性数据 : R318 Reliability Data .PDF
  4. 产品选型卡 : High Voltage Hot Swap Controllers.PDF