R48VBATTSWITCH10TOBO1

R48VBATTSWITCH10TOBO1 is a reference board demonstrates an implementation of an air-cooled high current protection switch up to 300A for automotive 48 V batteries. The design of this switch revolves around the 2 channel MOSFET gate driver 2ED4820-EM. Channel A is used to control the Power MOSFETs (IAUT300N08S5N011) for (dis-)connecting the battery. Channel B drives the MOSFETs (IAUZ40N10S5N130) for the DC-link pre-charge circuit. In order to improve functional safety, there are two diverse methods implemented for current monitoring and overcurrent protection – shunt based on the low-side and core-less hall based current sensing with the TLE4972-AE35D5 on the high-side.

• Bidirectional 48 V battery protection switch for continuous currents up to 300 A
• Two high-side output channels in common source back to back MOSFET structure
• Pre-charge path for DC-Link capacitors
• Passive freewheeling (active freewheeling optional)
• Shunt based current monitoring on low-side
• Hall based current monitoring on high-side
• Over-current protection with programmable thresholds
• Extensive diagnostics
• Dimension is 100mm x 75mm