| Part No.： | LTC4219 |
| Page： | 18 Pages |
| Size： | 259 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 0 |
| Update Time： | 2025-04-02 14:16:58 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LTC4219CDHC-12#PBF | Tube | 73 | 421912 | 3 | 16 | 0°C ~ 70°C | 16-Lead (5mm × 3mm) Plastic DFN | |
| LTC4219CDHC-12#TRPBF | Reel | 2500 | 421912 | 3 | 16 | 0°C ~ 70°C | 16-Lead (5mm × 3mm) Plastic DFN | |
| LTC4219IDHC-12#PBF | Tube | 73 | 421912 | 3 | 16 | -40°C ~ 85°C | 16-Lead (5mm × 3mm) Plastic DFN | |
| LTC4219IDHC-12#TRPBF | Reel | 2500 | 421912 | 3 | 16 | -40°C ~ 85°C | 16-Lead (5mm × 3mm) Plastic DFN | |
| LTC4219CDHC-5#PBF | Tube | 73 | 42195 | 3 | 16 | 0°C ~ 70°C | 16-Lead (5mm × 3mm) Plastic DFN | |
| LTC4219CDHC-5#TRPBF | Reel | 2500 | 42195 | 3 | 16 | 0°C ~ 70°C | 16-Lead (5mm × 3mm) Plastic DFN | |
| LTC4219IDHC-5#PBF | Tube | 73 | 42195 | 3 | 16 | -40°C ~ 85°C | 16-Lead (5mm × 3mm) Plastic DFN | |
| LTC4219IDHC-5#TRPBF | Reel | 2500 | 42195 | 3 | 16 | -40°C ~ 85°C | 16-Lead (5mm × 3mm) Plastic DFN |
The LTC4219 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 LTC4219 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 power good detection level and foldback current limit profile are internally preset for 5V (LTC4219-5) and 12V (LTC4219-12) applications.