On-Board Chargers

We’re moving fast charging forward with solutions that make on-board chargers (OBC) safer, more efficient, and reliable. 

Our current sensors offer galvanic isolation from high voltage and near 1μs short circuit detection, along with the ability to track IGBT fast switching current (>1000kHz) to achieve high efficiency safely. Want to make your fast charger even safer? For charger locks, our 80V gate driver and integrated full bridge enable safe disconnect.

Check out our innovative current sensors, grade 0 regulators, and gate drivers for OBC.

On Board Chargers block diagram

Featured Products

Allegro's MA-LA-MC Packages


400 kHz, High Accuracy Current Sensor with Pin-Selectable Gains


Self-Powered Single-Channel Isolated GaNFET Gate Driver with Power-Thru Integrated Isolated Bias Supply


The AHV85110 isolated gate driver is optimized for driving GaN FETs in multiple applications and topologies.


20-pin QFN ES package


Ultra Low Iq, Wide Input, 2.4MHz, 1 Amp Synchronous Buck Regulator



100V Fast Switching Half Bridge MOSFET Driver