SBVS343 March 2019 TPS7A78
ADVANCE INFORMATION for pre-production products; subject to change without notice.
The device can be configured to work in a full bridge FB or half bridge HB configurations. HB configuration is done by tying either AC+ or AC- pins to the device GND. See the Typical Schematic for details on how to configure the device.
Use high voltage differential scope probes in your measurement when FB configuration is used because the TPS7A78 device GND tracks the Neutral line voltage. Do not use bench measurement equipment or regular scope probes to perform test measurements on the device pins because such equipment have their GND tied to Earth GND.