ZHCSHO2G June 2010 – February 2018 TPS65251
PRODUCTION DATA.
The status of the SYNC pin will be ignored during start-up and the TPS65251’s control will only synchronize to an external signal after the PGOOD signal is asserted. The status of the SYNC pin will be ignored during start-up and the TPS65251 will only synchronize to an external clock if the PGOOD signal is asserted. When synchronization is applied, the PWM oscillator frequency must be lower than the sync pulse frequency to allow the external signal trumping the oscillator pulse reliably. When synchronization is not applied, the SYNC pin should be connected to ground.