| Part No.： | LT1641 |
| Page： | 12 Pages |
| Size： | 158 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 3 |
| Update Time： | 2023-12-06 17:42:21 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LT1641CS8#PBF | Tube | 100 | 1641 | 1 | 8 | 0°C ~ 70°C | 8-Lead SOIC | |
| LT1641CS8#TRPBF | Reel | 2500 | 1641 | 1 | 8 | 0°C ~ 70°C | 8-Lead SOIC | |
| LT1641CS8#TRMPBF | Reel | 500 | 1641 | 1 | 8 | 0°C ~ 70°C | 8-Lead SOIC | |
| LT1641IS8#PBF | Tube | 100 | 1641I | 1 | 8 | -40°C ~ 85°C | 8-Lead SOIC | |
| LT1641IS8#TRPBF | Reel | 2500 | 1641I | 1 | 8 | -40°C ~ 85°C | 8-Lead SOIC | |
| LT1641IS8#TRMPBF | Reel | 500 | 1641I | 1 | 8 | -40°C ~ 85°C | 8-Lead SOIC |
The LT1641 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 an N-channel gate for supply voltages ranging from 9V to 80V.
The chip features a programmable analog foldback current limit circuit. If the chip remains in current limit for more than a programmable time, the N-channel pass transistor turns off and is optionally set to automatically restart after a time-out delay.
The PWRGD output indicates when the output voltage, sensed by the FB pin, is within tolerance. The ON pin provides programmable undervoltage lockout.
The LT1641 is available in the 8-lead SO package.
| Part Number | Description |
| LT1640A | Negative High Voltage Hot Swap Controller |
| LTC1421 | Dual Channel Hot Swap Controller |
| LTC1422 | High Side Drive Hot Swap Controller in SO-8 |
| LT1641-1 | Positive High Voltage Hot Swap Controller |
| LT1641-2 | Positive High Voltage Hot Swap Controller |
| LTC1642 | Fault Protected Hot Swap Controller |
| LTC1643 | PCI Hot Swap Controller |
| LT4250L | Negative 48V Hot Swap Controller |
| LT4250H | Negative 48V Hot Swap Controller |
