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LTC2905CDDB Datasheet(PDF) 5 Page - Linear Technology

Part # LTC2905CDDB
Description  Precision Dual Supply Monitors with Pin-Selectable Thresholds
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2905CDDB Datasheet(HTML) 5 Page - Linear Technology

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LTC2904/LTC2905
5
sn29045 29045fs
TEMPERATURE (°C)
29045 G10
20.0
19.5
19.0
18.5
18.0
17.5
17.0
COMPARATOR OVERDRIVE VOLTAGE (% OF VRTX)
0.1
700
600
500
400
300
200
100
0
1
10
100
29045 G11
RESET OCCURS
ABOVE CURVE
CTMR (FARAD)
10p
100p
1n
10n
100n
1µ
29045 G12
10000
1000
100
10
1
0.1
TEMPERATURE (°C)
29045 G13
235
230
225
220
215
210
205
200
195
V1 (V)
0
5
4
3
2
1
0
–1
123
4
29045 G14
5
V2 = S1 = S2 = TOL = V1
10k PULL-UP RESISTOR
V1 (V)
0
5
4
3
2
1
0
–1
123
4
29045 G15
5
V2 = S1 = S2 = TOL = V1
10k PULL-UP RESISTOR
SUPPLY VOLTAGE, VCC (V)
0
5
4
3
2
1
0
4
29045 G17
123
5
RST AT 150mV
RST AT 50mV
V1 (V)
0
5
4
3
2
1
0
–1
123
4
29045 G16
5
V2 = S1 = S2 = TOL = V1
10pF CAPACITOR AT RST
SUPPLY VOLTAGE, VCC (V)
0
5
4
3
2
1
0
4
29045 G18
123
5
RST AT 150mV
RST AT 50mV
S1 = V2 = V1
TOL = S2 = GND
NO PULL-UP R
V2 = S1 = S2 = TOL = V1
NO PULL-UP R
–50
100
25
75
–25
0
50
–50
100
25
75
–25
0
50
CRT = 22nF
(FILM)
V1 = 2.5V
V2 = 3.3V
S1 = S2 = TOL = 1.4V
TYPICAL PERFOR A CE CHARACTERISTICS
IV2 vs Temperature
Typical Transient Duration vs
Comparator Overdrive (V1, V2)
Reset Time Out Period (tRST)
vs Capacitance (CTMR)
Reset Time-Out Period (tRST)
vs Temperature
RST Output Voltage vs V1
RST Output Voltage vs V1
RST Output Voltage vs V1
RST Pull-Down Current (IRST)
vs Supply Voltage (VCC)
RST Pull-Down Current (IRST)
vs Supply Voltage (VCC)
Specifications are at TA = 25°C unless otherwise noted.



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