Quad-channel digital isolator 4DIR2400H in DSO-16 wide-body package The 4DIR2400H (with 2 forward channels) provides robust reinforced isolation for high-voltage applications. Four data channels allow for simplified and high-power density designs and improve system efficiency with low power consumption. With a wide supply voltage range, active-high output enable and default low output state, it is a perfect fit for SMPS applications where reinforced isolation is required.