U6808B ATMEL Corporation, U6808B Datasheet - Page 10

• Manufacturer Part Number: U6808B
• Description: Special Fail-safe Ic
• Manufacturer: ATMEL Corporation

9. Timing Diagrams
Figure 9-1.
Figure 9-2.
10
U6808B
ENABLE
Watchdog in Too-fast Condition
Watchdog in Too-slow Condition
RELAY
WDI
ENABLE
RELAY
V
WDI
5 V
0 V
0 V
5 V
0 V
Batt
Normal operation
V
0 V
5 V
0 V
5 V
0 V
Batt
Normal operation
WDI too fast
WDI too slow
Normal operation
Normal operation
Don't care
Don't care
4707B–AUTO–10/05