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Hot-swap controller with a programmable digital SOA

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By Jean-Pierre Joosting


Infineon Technologies AG has introduced the XDP™ XDP710 digital controller, the first member of its intelligent hot-swap controller and protection IC family, to address challenging data centre requirements. The current growth in high-performance computing (HPC) data centerts is being driven by the demand for AI services. Special-purpose AI accelerators facilitate a significant increase in the performance and efficiency of these data centers. Like in many critical infrastructure systems, reliability and high availability are essential and highly challenging. Developers of AI supercomputing platforms can only address these requirements with hot-swap systems that monitor the power supply and protect the system even when components are hot-swapped.

The XDP™ XDP710 hot-swap and system monitoring controller IC has a 5.5 V to 80 V input voltage range with transients up to 100 V for 500 ms. It consists of three functional blocks. The first is the high-precision telemetry and digital safe operating area (SOA) control block, optimized to meet Infineon’s power MOSFETs characteristics. The second is the system resources and management block, and the third is the integrated gate driver and charge pump block for n-channel power MOSFETs such as OptiMOS™ and StrongIRFET™ families.

“Infineon Technologies’ XDP710 digital hot-swap controller met HGX Platform product requirement well. Like its unique features such as option of external FET selection using resistor strapping and boost mode. It helps that XDP710 come in small package, easy to design in” said Abhijit Datta, Sr. Power Architect and Subject Matter Expert at NVIDIA

“The XDP710 hot-swap controller is a feature-rich device with high-precision analog-front-end along with comprehensive health monitoring, telemetry, programmability, and pre-set MOSFET SOA. It addresses the challenges associated with the current design of pluggable AI server systems,” said Shahram Mehraban, Vice President Power Management ICs at Infineon’s Power and Sensor Systems Division.

The key feature of the XDP710 controller is its advanced closed-loop SOA control and the fully digital operating mode. This leads to a lower bill-of-material (BOM) reducing the number of external components and design time, allowing faster time-to-market. The XDP XDP710 can also operate in Analog-Assisted Digital Mode to support legacy systems.

The XDP XDP710 digital hot-swap and system monitoring controller IC is in production and available in a 29-lead (6- x 6-mm) VQFN package.

www.infineon.com/xdp710-001


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