G5177 Datasheet | Global Semiconductor

G5177 Low-Power Off-Line Digital Green-Mode PWM Controller DIGITAL PWM IC 1. General Description The G5177 is a high performance AC/DC power supply controller which uses digital control technology to build peak current mode PWM flyback power supplies. The device directly drives a power BJT and operates in quasi-resonant mode to provide high efficiency along with a number of key built-in protection Features while minimizing the external ponent count, simplifying EMI design and lowering the total bill of material cost. The device together with an external active device (depletion mode NFET or NPN BJT) provides a fast start-up without promising no-load power loss. Global...