LTC4260 is a high voltage hot swap controller that supports I2C communication and can monitor current and voltage.
The LTC4260 is a positive high‑voltage hot‑swap controller with I²C‑compatible monitoring, designed for safe insertion and removal of boards on a live backplane. It provides adjustable analog foldback current limiting, over‑voltage/under‑voltage protection, and a high‑side drive for an external N‑channel MOSFET.
The document includes absolute maximum ratings, electrical characteristics, pin descriptions, package options, typical performance curves, and example applications. It also lists related hot‑swap controller parts from Linear Technology.
| Operating Voltage Range | 8.5 V to 80 V |
|---|---|
| Input Supply Current | 2 mA to 5 mA |
| Turn‑On Delay | 50 ms to 150 ms |
| External N‑Channel Gate Drive Voltage | 20 V to 80 V |