Rochester Electronics PMIC - AC DC Converters, Offline Switchers UCC2580D-4

The UCC2580D-4 is a PWM controller designed for implementing active clamp/reset and synchronous rectifier switching converter topologies. It features an auxiliary switch activation that complements the main power switch, with programmable deadtime for efficient operation. The device operates with a voltage mode control and includes feedforward operation, allowing for programmable limits on transformer volt-second product and PWM duty cycle. This controller supports high current gate driving for both main and auxiliary outputs, with a startup supply current of 100 ¬µA and operational current of 1.5 mA. It incorporates multiple protection features, including latched shutdown and soft restart capabilities. The UCC2580D-4 is specified for operation in the temperature range of -40¬8C to 85¬8C and is available in a 16-pin SOIC package. Engineers considering this product should note its ability to reduce voltage stresses on switches and minimize switching losses, making it suitable for applications requiring efficient power conversion.