參數(shù)資料
型號(hào): LTC2902-2IGN
廠商: Linear Integrated Systems
英文描述: Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Tolerance
中文描述: 可編程四路電源監(jiān)視器可調(diào)復(fù)位定時(shí)器和供應(yīng)公差
文件頁(yè)數(shù): 6/16頁(yè)
文件大?。?/td> 206K
代理商: LTC2902-2IGN
6
LTC2902
2902f
TYPICAL PERFOR U
Typical Transient Duration
vs Comparator Overdrive (V1, V2)
RST Output Voltage
vs V1, V
PG
= 0V
Reset Time-Out Period
vs Temperature
Reset Time-Out Period
vs Capacitance
I
V4
vs Temperature
RST, COMPX I
SINK
vs Supply Voltage
TEMPERATURE (
°
C)
–60
0
I
V
μ
A
0.1
0.3
0.4
0.5
1.0
0.7
–20
20
40
2902 G13
0.2
0.8
0.9
0.6
–40
0
60
80
100
V1 = 5V
V2 = 3.3V
V3 = 2.5V
V4 = 1.8V
RESET COMPARATOR OVERDRIVE VOLTAGE (% OF V
RTX
)
0.1
250
T
μ
s
300
350
400
450
1
10
100
2902 G14
200
150
50
0
100
RESET OCCURS
ABOVE CURVE
T
A
= 25
°
C
V1 (V)
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
R
2902 G15
5
4
3
2
1
0
V1 = V2 = V3 = V4
10k PULL-UP FROM RST TO V1
T
A
= 25
°
C
TEMPERATURE (
°
C)
–60
4.9
R
R
5.9
6.4
6.9
8.9
7.9
–20
20
40
2902 G16
5.4
8.4
7.4
–40
0
60
80
100
C
RT
= 1500pF
(SILVER MICA)
C
RT
(FARAD)
10p
100p
10n
1
μ
10
1
100m
10m
1m
100
μ
2902 G17
1n
100n
R
R
T
A
= 25
°
C
V1 OR V2 (V)
0
0
I
S
2
4
6
1
2
3
4
2902 G18
5
8
10
1
3
5
7
9
6
V
OL
= 0.4V
T
A
= 25
°
C
V
OL
= 0.2V
RST, COMPX Voltage Output Low
vs Output Sink Current
RST High Level Output Voltage
vs Output Source Current
(LTC2902-2)
I
SINK
(mA)
0
V
O
20
40
50
90
2902 G19
10
30
60
70
80
3.0
2.5
2.0
1.5
1.0
0.5
0
85
°
C
25
°
C
–40
°
C
V2 = 3V
V1 = 5V
I
SOURCE
(mA)
0
0.5
2
V
O
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
2902 G20
2.5
1.5
1
85
°
C
25
°
C
–40
°
C
V1 = 5V
V2 = 3V
V3 = 2.5V
V4 = 1V
RESET COMPARATOR OVERDRIVE VOLTAGE (% OF V
RTX
)
0.1
80
60
40
20
0
T
μ
s
100
120
140
160
1
10
100
2902 G25
200
180
220
T
A
= 25
°
C
RESET OCCURS
ABOVE CURVE
Typical Transient Duration
vs Comparator Overdrive (V3, V4)
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