(China (Mainland))
Product Summary
The LTC4219CDHC-12 is an Integrated Hot Swap Controller. The LTC4219CDHC-12 is an integrated solution for Hot Swap™ applications that allows a board to be safely inserted and removed from a live backplane. The part integrates a Hot Swap controller, power MOSFET and current sense resistor in a single package for small form factor applications. The LTC4219CDHC-12 provides separate inrush current control and a 10% accurate 5.6A current limit with foldback current limiting. The current limit threshold can be adjusted dynamically using an external pin. Additional features include a current monitor output that amplifies the sense resistor voltage for ground referenced current sensing and a MOSFET temperature monitor output. Thermal limit and power good monitoring are also provided. The applications of the LTC4219CDHC-12 include RAID Systems, Server I/O Cards and Industrial.
Parametrics
LTC4219CDHC-12 absolute maximum ratings: (1)Supply Voltage (VDD): –0.3V to 28V; (2)Input Voltages FB, EN1, EN2: –0.3V to 12V; (3)TIMER: –0.3V to 3.5V; (4)SENSE: VDD – 10V or – 0.3V to VDD; (5)Output Voltages ISET, IMON: –0.3V to 3V; (6)PG, FLT: –0.3V to 35V; (7)OUT: –0.3V to VDD + 0.3V; (8)INTVCC: –0.3V to 3.5V; (9)GATE (Note 3): –0.3V to 33V; (10)Operating Temperature Range: 0℃ to 70℃; (11)Junction Temperature (Notes 4, 5): 125℃; (12)Storage Temperature Range: –65℃ to 150℃.
Features
LTC4219CDHC-12 features: (1)Small Footprint; (2)33mΩ MOSFET with RSENSE; (3)Available in Preset 12V and 5V Versions; (4)Adjustable, 10% Accurate Current Limit; (5)Current and Temperature Monitor Outputs; (6)Over temperature Protection; (7)Adjustable Current Limit Timer Before Fault; (8)Power Good and Fault Outputs; (9)Adjustable Inrush Current Control; (10)Available in 16-Lead 5mm × 3mm DFN Packages.
Diagrams
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 LTC4219CDHC-12#PBF |
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IC CTLR HOT SWAP 12A 16DFN |
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LTC4219CDHC-12#TRPBF |
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IC CONTROLLER HOT SWAP12A 16DFN |
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