The power distribution system supplies power for these applications, allowing electrical energy to flow from batteries or motors to various loads in the vehicle in a highly safe and controllable manner. Today, one of the biggest challenges facing designers is to reduce the cost, length, weight and complexity of the harness. In order to help designers solve this problem, Infineon Technology Co., Ltd. launched an intelligent high-voltage side MOSFET grid driver EiceDRIVER2ED2410-EM with integrated circuit protection function for 12 V/24 V automotive applications. The grid driver is the ideal partner of Infineon 40/60 V OptiMOS MOSFET.
The gate driver has two output channels, which is suitable for two different MOSFET structures: a common source stage or a common drain back to back configuration with a pre charging path. The enhanced driver switch functionality allows it to easily increase the number of MOSFETs in order to control greater load currents. Even when the current reaches hundreds of amperes, it can be quickly disconnected in microseconds, while traditional fuses need to wait several milliseconds to open. In addition, during the period from short circuit to disconnection of fault load, the device can operate normally at a voltage as low as 3V.
EiceDRIVER 2ED2410-EM has three analog measurement interfaces and four integrated comparators to provide protection, which can provide flexible and rich solutions to meet various functional requirements, including adjustable I-t line protection, over-current protection, over-voltage/undervoltage protection, etc. It can measure bi-directional current, monitor drain source voltage, and determine open circuit of output load.
The adjustable line protection function is helpful to select the wire section as small as possible for the corresponding load. In the past, considering the tolerance and aging effect of traditional fuses, the wire diameter must be up to 30% more than the actual demand. The device has an extremely low quiescent current loss of a few tenths of an ampere, which can minimize the automatic discharge of the battery when the vehicle is parked.
