參數(shù)資料
型號(hào)： TPS3125J18DBVT
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝： GREEN, PLASTIC, SOT-23, 5 PIN
文件頁數(shù)： 19/21頁
文件大?。?/td> 459K
代理商： TPS3125J18DBVT
TPS3124-xx, TPS3125-xx
TPS3126-xx, TPS3128-xx
SLVS227E
– AUGUST 1999 – REVISED AUGUST 2011
TIMING REQUIREMENTS
at RL = 1 M, CL = 50 pF, TA = +25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
At VDD
VIH = VIT– + 0.2 V,
VIL = VIT – –0.2 V
6
tw
Pulse width
At MR
1
μs
VDD ≥ VIT– + 0.2 V,
VIL = 0.3 x VDD,
VIH = 0.7 × VDD
At WDI
0.1
SWITCHING CHARACTERISTICS
at RL = 1 M, CL = 50 pF, TA = +25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD ≥ VIT– + 0.2 V,
ttout
Watchdog time out
0.8
1.4
2.1
s
See timing diagram
VDD > VIT– + 0.2 V,
td
Delay time
100
180
260
ms
See timing diagram
MR to RESET delay
tPHL
Propagation delay time, high-to-low-level output
0.1
VDD ≥ VIT–+ 0.2 V,
(TPS3123/5/6/8)
VIL = 0.2 × VDD,
μs
MR to RESET delay
VIH = 0.8 × VDD
tPLH
Propagation delay time, low-to-high-level output
0.1
(TPS3125/6)
tPHL
Propagation delay time, high-to-low-level output
VDD to RESET delay
10
VIL = VIT– –0.2 V,
μs
VDD to RESET delay
VIH = VIT– + 0.2 V
tPLH
Propagation delay time, low-to-high-level output
10
(TPS3124/5/6)
Copyright
1999–2011, Texas Instruments Incorporated
7
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