Dual-channel digital isolator 2DIB0410F in DSO-8 narrow body package Infineon’s ISOFACE™ dual-channel digital isolator 2DIB0410F (with 2 forward channels) provides robust isolation for high voltage applications. With a wide supply voltage range, TTL input thresholds and default output state low, it is the perfect fit for use in SMPS applications such as LV DCDC brick.