The ADM1176 is a hot swap controller and I2C power monitor that provides precise measurement and control of power supplies. It allows safe board insertion and removal from a live backplane, and controls supply voltages from 3.15 V to 16.5 V.
The ADM1176 hot‑swap controller provides safe board insertion and removal from a live backplane while monitoring supply voltage and current via an on‑chip 12‑bit ADC. Communication is performed over a standard I2C interface, allowing up to 16 devices on the same bus.
Key features include a programmable current limit, fast over‑current response, automatic retry or latch‑off on fault, and adjustable timing via the TIMER pin. The device is packaged in a 10‑lead MSOP and is suited for power monitoring, telecommunications equipment, PCs/servers, and other applications requiring reliable hot‑swap operation.
| Operating Voltage Range (VCC) | 3.15 V to 16.5 V |
|---|---|
| Supply Current (ICC) | 1.7 mA to 2.5 mA |
| Undervoltage Lockout (VUVLO) | 2.8 V |
| Maximum Operating Temperature | +85 °C |
The device operates from 3.15 V up to 16.5 V on the VCC pin.
Up to 16 unique I2C addresses can be set using the A0 and A1 pins.
The device is rated for operation up to +85 °C.
Typical supply current is between 1.7 mA and 2.5 mA.