G5178
Low-Power Off-Line Digital Green-Mode PWM Controller
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DIGITAL PWM IC
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0 General Description
The G5178 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 together with an external active device (depletion mode NFET or
NPN BJT) provides a fast start-up meanwhile achieving ultra-low no-load power consumption.
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 component count, simplifying EMI design and lowering the total bill of material cost.
Th...