Allegro MicroSystems has expanded its Energy-Via remoted gate driver portfolio with the AHV85003/AHV85043 chipset for silicon carbide purposes in EVs, AI information facilities and power methods, addressing energy density and electromagnetic interference challenges.
Allegro MicroSystems has expanded its Energy-Via remoted gate driver portfolio with the introduction of the AHV85003/AHV85043 chipset. The brand new merchandise be part of the present AHV85311 built-in answer to type a household of parts designed for high-voltage silicon carbide methods in EVs, AI information facilities and clear power purposes.
The gate driver know-how addresses energy conversion design challenges by eliminating the requirement for exterior remoted bias provides. In line with the corporate, this strategy reduces answer footprint and invoice of supplies whereas focusing on energy density necessities in 800-volt methods.
Allegro’s Energy-Via remoted gate drivers combine sign and energy transmission throughout a single isolation barrier. The corporate states this design reduces common-mode capacitance by as much as 15 instances in comparison with typical remoted gate drivers utilizing exterior bias converters, which generally exhibit as much as 30 picofarads of common-mode capacitance. The know-how delivers as much as 20 decibels of enchancment in electromagnetic interference efficiency when measured towards competitor options beneath comparable situations, based on firm testing.
Past technical specs, the expanded portfolio addresses provide chain concerns. Each the brand new chipset and the present built-in answer help a number of silicon carbide suppliers by way of selectable gate-to-source voltages of 15, 18 and 20 volts, together with adjustable regulated unfavourable voltage. This function permits designers to substitute SiC FETs from totally different producers with out board redesign.
The portfolio now gives two implementation choices. The AHV85311 built-in answer contains an isolation transformer for streamlined deployment. The brand new AHV85003/AHV85043 chipset allows designers to pick out exterior transformers based mostly on particular isolation necessities, providing flexibility for value and format optimization.
“We’re redefining what engineers ought to count on from a gate driver,” stated Vijay Mangtani, Vice President and Normal Supervisor of Excessive Voltage Energy Merchandise at Allegro MicroSystems. “With Energy-Via, we solved the elemental physics drawback of noise in high-voltage methods. Now, by providing each a chipset and an built-in answer, we’re giving our clients an entire toolkit.”
The growth of the Energy-Via portfolio displays ongoing improvement in gate driver know-how for high-voltage energy electronics. The merchandise goal purposes the place energy density, electromagnetic interference and thermal administration current engineering constraints, notably in transportation electrification and information heart infrastructure.
