| Part No.： | LT4256-3 |
| Page： | 20 Pages |
| Size： | 214 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 1 |
| Update Time： | 2023-12-06 16:06:31 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LT4256-3CGN#PBF | Tube | 100 | 42563 | 1 | 16 | 0°C ~ 70°C | 16-Lead SSOP | |
| LT4256-3CGN#TRPBF | Reel | 2500 | 42563 | 1 | 16 | 0°C ~ 70°C | 16-Lead SSOP | |
| LT4256-3CGN#TRMPBF | Reel | 500 | 42563 | 1 | 16 | 0°C ~ 70°C | 16-Lead SSOP | |
| LT4256-3IGN#PBF | Tube | 100 | 42563I | 1 | 16 | -40°C ~ 85°C | 16-Lead SSOP | |
| LT4256-3IGN#TRPBF | Reel | 2500 | 42563I | 1 | 16 | -40°C ~ 85°C | 16-Lead SSOP | |
| LT4256-3IGN#TRMPBF | Reel | 500 | 42563I | 1 | 16 | -40°C ~ 85°C | 16-Lead SSOP |
The LT4256-3 is a high voltage Hot Swap™ controller that allows a board to be safely inserted and removed from a live backplane. An internal driver controls the high side N-channel MOSFET gate for supply voltages ranging from 10.8V to 80V. The part features an open-circuit detect (OPEN) output that indicates abnormally low load current conditions.
The LT4256-3 also features an adjustable analog foldback current limit. If the supply remains in current limit for more than a programmable time, the N-channel MOSFET shuts off, the PWRGD output asserts low and the LT4256-3 either automatically restarts after a time-out delay or latches off until the UV pin is cycled low (depending on the status of the RETRY pin).
The PWRGD output indicates when the output voltage rises above a programmed level. An external resistor string from VCC provides programmable undervoltage and overvoltage protection.
The LT4256-3 is available in a 16-lead SSOP package.
