Suitable for 48V boardnet high current load switching

Infineon has introduced a gate driver suitable for 48V boardnet high-current load switching and capable of quickly disconnecting the battery from the load even in the event of overcurrent.

Infineon announced on the 9th that it has launched an automotive dual-channel high-side gate driver that protects 48V battery systems.

48V battery systems are being used in a variety of growing fields, including mild hybrid electric vehicles, trucks, electric scooters, and battery packs for solar panels.

Lithium-ion battery systems must be protected against negative and positive voltages, and must be able to quickly and reliably disconnect the battery from the load within microseconds in the event of overcurrent.

Additionally, since battery units may not be dedicated to a single vehicle, condition diagnostics and protection threshold configuration capabilities are important.

To meet these requirements, Infineon Technologies has launched the EiceDRIVER™ 2ED4820-EM, a smart gate driver with SPI interface.

This gate driver is ideal for use with Infineon's 80/100V OptiMOS™ MOSFETs and is suitable for high-current load switching on 48V boardnets.

The smart dual-channel high-side gate driver 2ED4820-EM, part of the EiceDRIVER APD family, supports negative voltages down to -90 V and +105 V.It can withstand voltages up to .

To cope with these various voltage conditions that can occur during short circuits and poor contact, a current sense amplifier for high-side or low-side measurement is included.

Low-side measurement helps reduce cost, PCB space, and overall power consumption because it allows the use of existing shunt resistors in the battery management system.

It has the advantage of controlling the charging path through two built-in output channels or separating the battery charging and discharging current paths, thereby reducing PCB space and overall cost.

The 2ED4820-EM is now in mass production.

PRO-SIL™ supports ISO26262 and provides safety application notes.