SGM25716

The SGM25716 is a high-performance hot-swap controller for 10V to 90V system with an SMBus/I²C interface compliant with PMBus standards. The SGM25716 provides continuous real-time monitoring of power, voltage, current, temperature, and fault conditions through the SMBus/I²C interface, reporting all data to the system management host. 

The SGM25716 delivers current and power limiting capabilities, which safeguard sensitive circuitry when boards are inserted into a live system backplane or any other active power source. Additionally, a rapid-response circuit breaker prevents damage if a short circuit occurs at the output. Key parameters such as input under-voltage and over-voltage levels, hysteresis, insertion delay time, and fault detection time are all configurable. The SGM25716 also features a temperature monitoring module that interfaces with a low-cost external diode. This diode is used to monitor the temperature of external MOSFETs or other thermally sensitive components. The power good output serves as a quick indicator whenever input or output voltages deviate from their programmed ranges.

The monitoring module of the SGM25716 calculates two types of values for subsystem operating parameters (V_IN, I_IN, P_IN, V_OUT): real-time values and average values. It also computes the peak power of the subsystem. Accurate power averaging is achieved by calculating the average of the product derived from input voltage and input current.

The SGM25716 is available in a Green TSSOP-28 (Exposed Pad) package.