LTC2900 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC2900 Datasheet PDF : 16 Pages
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LTC2900
TYPICAL PERFOR A CE CHARACTERISTICS
RST Output Voltage
vs V1, VPG = 0V
5
V1 = V2 = V3 = V4
10k PULL-UP FROM RST TO V1
4 TA = 25°C
3
2
1
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V1 (V)
2900 G14
RST, ISINK vs Supply Voltage
13
12 TA = 25°C
11
10
9
VOL = 0.4V
8
7
6
5
4
VOL = 0.2V
3
2
1
0
0
1
2
3
4
5
6
V1 OR V2 (V)
2900 G17
Reset Time-Out Period
vs Temperature
8.9
CRT = 1500pF
8.4 (SILVER MICA)
7.9
7.4
6.9
6.4
5.9
5.4
4.9
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
2900 G15
RST Voltage Output Low
vs Output Sink Current
3.0
V2 = 3V
V1 = 5V
2.5
85°C
25°C
– 40°C
2.0
1.5
1.0
0.5
0
0 10 20 30 40 50 60 70 80 90
ISINK (mA)
2900 G18
Reset Time-Out Period
vs Capacitance
10 TA = 25°C
1
100m
10m
1m
100µ
10p
100p
1n 10n
CRT (FARAD)
100n 1µ
2900 G16
RST High Level Output Voltage
vs Output Source Current
(LTC2900-2)
3.5
V1 = 5V
V2 = 3V
3.0
V3 = 2.5V
V4 = 1V
2.5
2.0
– 40°C
1.5
25°C
1.0
85°C
0.5
0
0
0.5
1
1.5
2
2.5
ISOURCE (mA)
2900 G19
6
RST Pull-Up Current vs V2
(LTC2900-1)
20 TA = 25°C
18
16
14
12
10
8
6
VRT33
4
VRT30
VRT25
2
0
2 2.5 3 3.5 4 4.5 5
V2 (V)
2900 G22
RST Pull-Up Current vs V2
(LTC2900-2)
6
TA = 25°C
5
4
3
2
VRT33
VRT30
VRT25
1
0
2 2.5 3 3.5 4 4.5 5
V2 (V)
2900 G23
2900f
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