The elimination of a secondary-side regulator and optocoupler means reduced BOM costs and fewer solder joints for potential failure, increasing reliability. Dialog's digital control loop technology provides voltage cross-regulation between the power rails in the system.
The iW1818 and iW1830 simplify appliance power supply designs by integrating a high-voltage power switch (800V BJT and 700V MOSFET, respectively) and both support high capacitance loads (up to 6000µF) at up to 12V.
The adaptive multi-mode PWM/PFM control in the iW1818 and iW1830 changes the switching frequency to optimise the system for high efficiency of up to 80% at light loads. Helping white goods designers meet global energy efficiency regulations.
Both controllers come in a thermally efficient, small footprint, 10 x 10mm PDIP-7 package. In addition to built-in over-temperature protection, they offer protection from fault conditions, such as output short-circuit, over-voltage and over-current.
