The SGM25720 is an advanced hot-swap controller designed for compute blades and storage systems, featuring an SMBus/I²C dual-compatible interface compliant with PMBus standards. This device provides precise electrical parameter monitoring, system-level protection, and dynamic control for compute and storage blades connected to high-density backplane power buses, ensuring reliability in demanding environments.
The control block of the SGM25720 incorporates a distinctive hot-swap architecture. This architecture 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 SGM25720 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 (PGD) output serves as a quick indicator whenever input or output voltages deviate from their programmed ranges.
The monitoring module of the SGM25720 calculates two types of values for subsystem operating parameters (VIN, IIN, PIN, VOUT): 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. Furthermore, the device includes a black box function (referred to as Telemetry/Fault Snapshot). This function triggers the capture and storage of telemetry data and device status whenever a warning or fault condition arises.
The SGM25720 is available in a Green TQFN-4× 5-24AL package.
- Input Voltage Range: 2.9V to 18V
- I2C/SMBus Interface and PMBus Compliant Command Structure
- Programmable 24.5mV or 45mV Current Limit Threshold
- Configurable Circuit Breaker Protection for Hard Shorts
- Configurable Under-Voltage and Over-Voltage Lockouts with Hysteresis
- Remote Temperature Sensing with Programmable Warning and Shutdown Thresholds
- Detection and Notification of MOSFET Health
- Real-Time 12-Bit ADC for VIN, VOUT, IIN, PIN, VAUX and 1kHz Sampling Rate
- Current Measurement Accuracy: ±1.8% Over-Temperature
- Power Measurement Accuracy: ±2.2% Over-Temperature
- Accurate Dynamic Power Reading Averaging Achieved Through Simultaneous VIN and IIN Sampling
- Programmable Interval-Based Averaging of VIN, IIN, PIN, and VOUT, with Interval Ranges from 1ms to 4s
- Configurable WARN and FAULT Thresholds, Equipped with nSMBA Notification
- Black Box Recording of Telemetry Data and Device Status, Activated by Warn or Fault Events
- Available in a Green TQFN-4×5-24AL Package
Server Backplane Systems
Basestation Power Distribution Systems
Solid-State Circuit Breaker
Part Number | Status | Package | Pins | Pd-Free | RoHS | REACH | Green | MSL Rating | Operating Temperature Range | Material Content | Reliability Report | Unit Resale Price* (Volume Range: in USD) | Lead Time** (Volume Range: Days) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM25720XTQY24G/TR | Active | TQFN-4×5-24AL | 24 | YES | YES | YES | YES | MSL2 | -40℃ to +125℃ | View | View | 1-24 units : $5.6/unit 25-99 units : $4.8/unit 100-249 units : $4/unit 250-499 units : $3.2/unit 500-999 units : $2.8/unit 1000-9999 units : $2.08/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 78 days 1000K and above : 120 days |
* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.
** The lead time provided is for reference purposes only and is subject to change based on different circumstances.
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