As a functionally integrated power control device, it includes an internal 730V high voltage power transistor with a low 19Ω on resistance, a high voltage start-up switch and a current mode PWM controller. Using output voltage feedback signals, the PWM controller will regulate the output voltage using both a high voltage fast start-up function as well as a light load burst mode to reduce light load switching losses.

The HT7A6312 has a low standby operating current of 0.7mA, significantly reducing its standby power consumption. A full range of protective functions are provided which include protection for over current, over voltage and over temperature all of which can initiate an auto-reset function. These functions combine to provide a level of safety protection allowing safe and reliable device usage.

With regard to packaging, the device is supplied in 8-pin SOP and 8-pin DIP package types. With its simple system architecture design, the device has both the advantages of high efficiency and low cost.