This document introduces the characteristics of ADM1175. ADM1175 is a hot swap controller and digital power monitor with convert pin. It allows safe board insertion and removal from a live backplane, controls supply voltages from 3.15 V to 16.5 V, precision current sense amplifier, precision voltage input, 12-bit ADC for current and voltage readback, charge pumped gate drive for external N-channel FET, adjustable analog current limit with circuit breaker, ±3% accurate hot swap current limit level, fast response limits peak fault current, automatic retry or latch-off on current fault, programmable hot swap timing via TIMER pin, active-high and active-low ON/ONB pin options, convert start pin (CONV), I2C® fast mode-compliant interface (maximum 400 kHz), 10-lead MSOP
The Analog Devices ADM1175 is an integrated hot swap controller and current sense amplifier designed to allow safe board insertion and removal from alive backplanes. It controls supply voltages ranging from 3.15 V to 16.5 V and includes a precision current sense amplifier with a charge-pumped gate drive for external N-channel FETs.
The device features an on-chip 12-bit analog-to-digital converter (ADC) that communicates through an I2C interface, enabling digital readback of current and voltage data. It provides adjustable analog current limits with circuit breaker functionality and fast response to peak fault currents.
| Operating Voltage Range | 3.15 V to 16.5 V |
|---|---|
| Supply Current | 25 mA (Typ) |
| ADC Resolution | 12-bit |
| Interface Type | I2C (PC Fast Mode) |
| Package Type | 10-lead MSOP |
| Operating Temperature Range | -40°C to +85°C |
The maximum SCL clock frequency is 400 kHz.
Yes, up to four unique I2C addresses can be created depending on how the ADR pin is connected.