JAJSFE5C October 2009 – May 2018 TPS65720 , TPS65721
PRODUCTION DATA.
When VAC is greater than UVLO and VIN is greater than VBAT + VIN(DT), the device is in standby mode. <CH_PGOOD> = 1 to indicate the valid power status and the host commands are read. The device enters standby mode whenever <AC input current1, AC input current0> = (1,1) or if an input overvoltage condition occurs. In standby mode, Q1 is OFF and Q2 is ON. (If <SYSOFF> = 1, Q2 is off). During standby mode, the VOUT(SC2) circuitry is active and monitors for overload conditions on SYS.