The 8-SOIC (0.154, 3.90mm Width) package offers greater flexibility.Bulk represents the packaging method.Ideally, it should be mounted in the direction of Surface Mount.You will find various related parts under the base part number IX*611.Mosfet driver is mounted using the Surface Mount method.
IXB611S1 Features
Embedded in the Bulk package
IXB611S1 Applications
There are a lot of IXYS IXB611S1 gate drivers applications.