LTC1422 Hot Swap Controller

The LTC®1422 is an 8-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 a programmable rate. A high side switch driver controls the N-channel gate for supply voltages ranging from 2.7V to 12V.

A programmable electronic circuit breaker protects against shorts. The RESET output can be used to generate a system reset when the supply voltage falls below a programmable voltage. The ON pin can be used to cycle the board power or to generate a soft reset.

The LTC1422 is available in 8-pin PDIP and SO packages

产品特点 Features
  • Allows Safe Board Insertion and Removal from a Live Backplane
  • System Reset Output with Programmable Delay
  • Programmable Electronic Circuit Breaker
  • User-Programmable Supply Voltage Power-Up Rate
  • High Side Driver for an External N-Channel FET
  • Controls Supply Voltages from 2.7V to 12V
  • Undervoltage Lockout
  • Soft Reset Input
  • Glitch Filter on RESET
参数
LTC1422 参数
应用
  • Hot Board Insertion
  • Electronic Circuit Breaker
典型应用图
LTC1422 典型应用
LTC1422 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) *
LTC1422CN8 PDIP 8 C $2.95 $2.50
LTC1422CN8#PBF PDIP 8 C $2.95 $2.50
LTC1422CS8 SO 8 C $3.50 $2.75
LTC1422CS8#PBF SO 8 C $3.50 $2.75
LTC1422CS8#TR SO 8 C $2.81
LTC1422CS8#TRPBF SO 8 C $2.81
LTC1422IN8 PDIP 8 I $3.35 $2.85
LTC1422IN8#PBF PDIP 8 I $3.35 $2.85
LTC1422IS8 SO 8 I $4.00 $3.15
LTC1422IS8#PBF SO 8 I $4.00 $3.15
LTC1422IS8#TR SO 8 I $3.21
LTC1422IS8#TRPBF SO 8 I $3.21
LTC1422 数据手册及相关资料下载
  1. 数据手册(英文) : LTC1422 - Hot Swap Controller.PDF
  2. 设计要点 (英文) : DN197 - Power Solutions for the Device Bay.PDF
  3. 设计要点 (中文) : DN272 Multiple Power Supplies Track During Power Up.PDF
  4. 设计要点 (英文) : DN319 - Low Voltage Hot Swap Controller Ignores Backplane Noise and Surges.PDF
  5. 可靠性数据 : R568 Reliability Data .PDF
  6. 产品选型卡 : High Voltage Hot Swap Controllers.PDF