Infineon’s EiceDRIVER 125 V high-side gate driver protects battery-driven applications
In battery-powered applications such as motor drives and switched-mode power supplies (SMPS), the power supply architecture often requires that a module can be disconnected from the main supply rail when a fault occurs in that module. To achieve this functionality, it is common to use high-side disconnect switches (e.g. MOSFETs) to prevent a load short circuit from affecting the battery. Infineon has now introduced the EiceDRIVER 1EDL8011, a high-side gate driver designed to protect battery-powered applications such as cordless power tools, robotics, e-bikes, and vacuum cleaners in the event of a fault.
The device provides fast turn-on and turn-off of high-side N-channel MOSFETs with its high gate current capabilities. It consists of an integrated charge pump with an external capacitor to provide strong start-up. The internal charge pump provides the MOSFET gate voltage when the operating input voltage is low. The gate driver IC manages inrush current and provides fault protection. Under-voltage Lockout (UVLO) protection at input voltage prevents the device from operating under hazardous conditions. The driver is available in a DSO-8 package, making it ideal for space-constrained designs. It includes overcurrent protection (OCP), adjustable current setting threshold, time delay and a safe start-up mechanism with flexible blanking during MOSFET turn-on transitions.
The 1EDL8011 has a wide operating voltage range of 8 V to 125 V and a high gate sinking current of up to 1 A, allowing for efficient switching. Additionally, the product has an extremely low off-mode quiescent current of 1 µA, helping to minimise power consumption in sleep mode. The device also includes a V DS sense feature that is used to trigger an overcurrent shutdown by monitoring the drain-to-source voltage of the disconnect MOSFET.
Infineon will be showcasing a demo featuring the 1EDL8011 at its global technology forum OktoberTech 2024 in Silicon Valley on 17 October.
Availability
The 1EDL8011 is available now. Further information can be found at https://www.infineon.com/1edl8011.
