參數(shù)資料
型號(hào): LM3710XQMM-308
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 電源管理
英文描述: Microprocessor Supervisory Circuits with Power Fail Input, Low Line Output, Manual Reset and Watchdog Timer
中文描述: 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO10
封裝: MSOP-10
文件頁(yè)數(shù): 6/16頁(yè)
文件大小: 319K
代理商: LM3710XQMM-308
LM3710/LM3711 Series Electrical Characteristics
(Continued)
Limits in the standard typeface are for T
J
= 25C and limits in
boldface type
apply over full operating range. Unless otherwise
specified: V
CC
= +2.2V to 5.5V.
Symbol
Parameter
Conditions
WDI
WDI
Watchdog Input
Current
WDI
T
Watchdog Input
Threshold
t
WD
Watchdog
Timeout Period
Watchdog Timeout Period = J, K, L, M
Watchdog Timeout Period = N, P, Q, R
Watchdog Timeout Period = S, T, U, V
PFI/MR
V
PFT
PFI Input
Threshold
V
MRT
MR Input
Threshold
MR, High
V
PFTH
/
V
MRTH
Hysteresis
I
PFI
Input Current
(PFI only)
R
MR
MR Pull-up
Resistance
t
MD
MR to Reset
Delay
t
MR
MR Pulse Width
PFO, LLO
V
OL
PFO, LLO Output
Voltage
V
CC
>
2.7V, I
SINK
= 1.2mA
V
CC
>
4.5V, I
SINK
= 3.2mA
V
OH
V
CC
>
2.7V, I
SOURCE
= 500μA
V
CC
>
4.5V, I
SOURCE
= 800μA
LLO OUTPUT
V
LLOT
LLO Output
Threshold
(V
LLO
V
RST
, V
CC
falling)
V
LLOTH
Low-Line
Comparator
Hysteresis
t
CD
Low-Line
Comparator Delay
Min
Typ
Max
Units
1
+1
μA
0.2
V
CC
1.225
0.8
V
CC
V
Watchdog Timeout Period = E, F, G, H
4.3
71
1120
17900
6.2
102
1600
25600
9.3
153
2400
38400
ms
1.200
1.225
1.250
V
MR, Low
0.8
V
2.0
PFI/MR Threshold
PFI/MR falling: V
CC
= V
RST MAX
to 5.5V
0.0032
V
RST
mV
75
75
nA
35
56
75
k
12
μS
25
μS
V
CC
>
2.25V, I
SINK
= 900μA
0.3
0.3
0.4
V
V
CC
>
2.25V, I
SOURCE
= 300μA
0.8 V
CC
0.8 V
CC
V
CC
1.5V
1.01
V
RST
1.02
V
RST
1.03
V
RST
V
0.0032
V
RST
mV
V
CC
falling at 1mV/μs
20
μs
L
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