JAJSH18A March 2019 – September 2019 TPS7A78
The TPS7A78 is designed primarily to operate from an AC supply voltage ≥ 18 VAC and an input line frequency up to 20 kHz. To ensure that the output voltage is well regulated and that dynamic performance is optimum, the procedures and examples in the Typical Application section must be followed.
The TPS7A78 can also operate from a DC supply voltage from 17 V to 23 V depending on the output voltage. To ensure proper operation and ensure that the DC output voltage is well regulated, the DC supply voltage applied to the SCIN pin must be well regulated and greater than or equal to the minimum VUVLO_SCIN rising threshold specified in the Electrical Characteristics table.