參數(shù)資料
型號: TPS386040RGPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC20
封裝: 4 X 4 MM, GREEN, PLASTIC, QFN-20
文件頁數(shù): 7/31頁
文件大?。?/td> 681K
代理商: TPS386040RGPR
SBVS105B
– SEPTEMBER 2009 – REVISED MARCH 2011
Table 5. Watchdog Timer (WDT) Truth Table
CONDITION
OUTPUT
RESET1 OR
TPS386000
TPS386020
WDO
RESET1
WDI PULSE INPUT
TPS386040
TPS386060
STATUS
Remains in WDT
Low
High
Asserted
Toggling
WDO = low
WDO = high
timeout
Remains in WDT
Low
High
Asserted
610ms after last WDI
↑ or WDI↓
WDO = low
WDO = high
timeout
Remains in WDT
Low
High
Released
Toggling
WDO = low
WDO = high
timeout
Remains in WDT
Low
High
Released
610ms after last WDI
↑ or WDI↓
WDO = low
WDO = high
timeout
High
Low
Asserted
Toggling
WDO = high
WDO = low
Normal operation
High
Low
Asserted
610ms after last WDI
↑ or WDI↓
WDO = high
WDO = low
Normal operation
High
Low
Released
Toggling
WDO = high
WDO = low
Normal operation
High
Low
Released
610ms after last WDI
↑ or WDI↓
WDO = low
WDO = high
Enters WDT timeout
Copyright
2009–2011, Texas Instruments Incorporated
15
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