TPS3813: Maximum watchdog time-out when using external cap

Ben Kuo

Part Number: TPS3813

Dear expert,

What is the maximum watchdog time-out of TPS3813 when I use external cap to program it?

I get a requirement from customer. They are looking for a device that WD timeout can be programmed more than "2min" in 3.3VDD system. Did we have something can do that?

Regard,

Ben

over 6 years ago

0 Michael_DeSando over 6 years ago

TI__Genius 12630 points

Ben,

The TPS3813 can only be programmed to 3 seconds for the upper boundary on the watchdog window. This spec is found in Table 6.7 Switching Characteristics. Unfortunately we do not have any device with upper boundary in the "minutes" range. Will anything in the "seconds" range work?

-Michael

Power management

Power management forum

TPS3813: Maximum watchdog time-out when using external cap