SLVSGF1A october 2022 – june 2023 TPS3436-Q1
PRODUCTION DATA
The window watchdog frame consists of two sub frames tWC followed by tWO. The host is expected to drive valid WDI transition during tWO time. A valid WDI transition before beginning of tWO frame causes early fault condition. Failure to offer valid WDI transition during tWC and tWO frames results in late fault condition. When a fault condition is detected the WDO output is asserted.
The tWO value is derived using tWC value and the window open time ratio value n. Equation highlights the relationship between tWO and tWC. Refer Section 5 to select available ratio options.
Each orderable can offer up to 3 ratio options based on the available SET pins. Refer Section 8.3.1.5 to identify mapping of ratio value to SET pin control. The maximum tWO value is limited to 640 second. Ensure selected tWC and ratio combination does not lead to tWO value greater than 640 second.