First wide input hot swap controller for telecoms

First wide input hot swap controller for telecoms

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By Nick Flaherty

Infineon Technologies has developed the industry’s first -48 V wide input voltage digital hot swap controller with a programmable safe operating area (SOA) for telecom infrastructure.

The Infineon XDP700-002 is aimed at enabling hot swap replacement of modules in remote radio head power, base station power distribution, active and passive antenna systems, 5G small cell power, and telecom UPS systems.

The XDP700-002 uses a three-block architecture that combines high-precision telemetry for monitoring and fault detection, digital SOA control optimized for power MOSFETs, and integrated gate drivers for n-channel power MOSFETs.

It operates within an expansive -6.5 to -80 V input voltage range and can withstand transients up to -100 V for 500 ms, delivering current and voltage telemetry with a remarkable 0.7 percent and 0.5 percent accuracy respectively for fault detection and reporting accuracy and boost-mode control technology for safer turn-on of field-effect transistors (FETs) in systems with non-optimal SOA.

The PMBus  compliant active monitoring provides enhanced system reliability and a  programmable gate shutdown during severe overcurrent (SOC) ensures robust shutdown operation within just 1 µs. The advanced closed-loop SOA control ensures higher MOSFET reliability, and the fully digital operating mode minimizes the need for external components offering a compact solution making it an optimal fit for space-constrained designs.

With options for external FETs selection and a one-time programmable (OTP) option, the XDP700-002 offers flexibility for programming faults and warnings detection as well as de-glitch levels for various usage models. Its analog-assisted digital mode offers backward compatibility with legacy analog hotswap controllers.

The controller perfectly matches Infineon’s OptiMOS and OptiMOS Linear FET portfolio for reliable and powerful system performance.

The XDP700-002 hot-swap and system monitoring controller IC is available in a VQFN-29 6×6 package and can be ordered now.


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