Hot swap controller
21 March 2012
Power Electronics / Power Management
Vicor has unveiled its new Picor Cool-Swap PI2211 hot swap controller and circuit breaker (operating range: +0,9 to +14 V), featuring Picor’s advanced True-SOA and Glitch-Catcher technologies.
The device’s programmable True-SOA feature ensures safe, reliable operation at both the system and MOSFET level during both circuit card insertion and steady state operation. The feature provides MOSFET protection in the most ideal way possible by emulating the transient thermal performance of the specific MOSFET in use.
By emulating MOSFET thermal behaviour and digitally calculating the MOSFET junction temperature rise using the MOSFET manufacturers’ transient thermal impedance data, the PI2211 can adapt its control, startup and thermal cycling to the specific user-selected external N-channel MOSFET requirements, ensuring safe operating limits regardless of load and line conditions. Typical industry practice attempts this level of protection by simple timer-based constant power limiting which does not allow for MOSFET optimisation and forces designers to oversize the MOSFET, increasing board area use and cost.
The device, with its Glitch-Catcher voltage suppression technology, also mitigates the need for large external protection components by diminishing transient overshoot events and maintaining compliance with the specified voltage ratings.
During a circuit breaker event, the PI2211’s internal Glitch-Catcher voltage suppression circuit controls the MOSFET to act as an active snubber, passing potentially high inductive bus energy through the MOSFET to limit over-voltage exposure. By shunting the energy through the MOSFET to the low impedance load, the PI2211 not only eliminates the need for external protection components but further reduces overall cost and total solution size.
Further reading:
Power efficiency and robustness in electronics design
Power Electronics / Power Management
Mouser Electronics recently announced a new eBook in collaboration with Analog Devices highlighting essential strategies for optimising power systems.
Read more...
USB Type-C-powered controllers
Future Electronics
Power Electronics / Power Management
Diodes Incorporated has released two USB Type-C PD 3.1 extended power range sink controllers that can be embedded into battery-powered devices.
Read more...
Multicell battery monitoring
Altron Arrow
Power Electronics / Power Management
The LTC6811 from Analog Devices is a multicell battery stack monitor that measures up to 12 series connected battery cells with a total measurement error of less than 1,2 mV.
Read more...
Full telemetry in tiny DC-DC converters
RS South Africa
Power Electronics / Power Management
The FS160* series of µPOL DC-DC converters from TDK all offer full telemetry, provide increased performance, and are remarkable for extraordinary power density in the smallest sizes.
Read more...
Power IC supplies 1650 W
EBV Electrolink
Power Electronics / Power Management
Power Integrations has announced a two-fold increase in power output from the HiperLCS-2 chipset with the new device now being able to deliver up to 1650 W of continuous output power.
Read more...
High-voltage step-down DC-DC converter
Altron Arrow
Power Electronics / Power Management
The MAX17793 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operating over an input voltage range of 3 to 80 V.
Read more...
High-voltage contactors
RS South Africa
Power Electronics / Power Management
TDK Corporation has announced two new additions to its high-voltage contactor portfolio for harsh environments: the HVC43MC with integrated mirror contact and the HVC45 with enhanced short-circuit current handling capability.
Read more...
Chokes rated at 36 A
RS South Africa
Power Electronics / Power Management
TDK Corporation has launched the EPCOS SurfIND series, a new range of current-compensated ring core double chokes for high currents and surface mounting.
Read more...
RF arrestor provides robust protection
RFiber Solutions
Power Electronics / Power Management
NexTek’s range of coaxial RF surge and lightning arrestors are designed and built to provide robust protection for any radio or coaxial RF transmission application.
Read more...
Wide-Bandgap Developer Forum 2025
Power Electronics / Power Management
To give designers the ultimate in design flexibility, the entire range of WBG power semiconductors will be provided including discretes, modules, and highly integrated solutions ranging from 40 V to 700 V for GaN and 400 V to 3,3 kV for SiC.
Read more...
printer friendly version