The LTC4241 is a Hot Swap controller that allows a board to be safely inserted and removed from a live PCI-bus slot.
The LTC4241 is a Hot‑Swap controller that enables safe insertion and removal of boards from a live PCI‑bus slot. It controls the four primary PCI supplies (3.3 V, 5 V, –12 V, 12 V) and an independent 3.3 V auxiliary supply, offering adjustable ramp‑up rates, fold‑back current limiting, and fault detection with Power‑Good and FAULT outputs.
The document includes detailed pin‑function descriptions, absolute maximum ratings, DC electrical characteristics, typical performance curves, package dimensions, and a sense‑resistor selection guide, supporting designers of PCI‑based servers and computer systems.
| Input Voltage Range | 0 V to 14 V |
|---|---|
| Operating Temperature (CGN) | 0 °C to 70 °C |
| Package | 20‑lead narrow plastic SSOP |
| Undervoltage Lockout (12 V) | ≈9 V |
The device operates from 0 °C to 70 °C (CGN version) and from –40 °C to 85 °C (IGN version).