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LTC2905 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC2905
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

LTC2905 Datasheet(HTML) 6 Page - Linear Technology

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LTC2904/LTC2905
6
29045fd
RST PULL-DOWN CURRENT, IRST (mA)
0
20
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
29045 G19
10
50
60
40
30
25 C
85 C
–40 C
V1 = 5V
V2 = 3V
S1 = S2 = TOL = V1
NO PULL-UP R
RST PULL-DOWN CURRENT, IRST (mA)
0
20
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
29045 G20
10
50
60
40
30
25 C
85 C
–40 C
V1 = 5V
V2 = 3.3V
S1 = S2 = TOL = V1
NO PULL-UP R
SUPPLY VOLTAGE, VCC (V)
2.0
4.0
–18
–16
–14
–12
–10
–8
–6
–4
–2
0
29045 G21
3.0
5.0
2.5
4.5
3.5
VRT25
VRT33
VRT50
TOL = GND
SUPPLY VOLTAGE, VCC (V)
2.0
4.0
29045 G22
3.0
5.0
2.5
4.5
3.5
–16
–14
–12
–10
–8
–6
–4
–2
0
TOL = V1
VRT25
VRT33
VRT50
OUTPUT SOURCE CURRENT, IRST ( A)
–12
3.0
2.5
2.0
1.5
1.0
0.5
–10
–8
–6
–4
29045 G23
–2
0
V1 = 3.3V
V2 = 1.8V
S1 = TOL =V1
S2 = OPEN
NO PULL-UP R
25 C
85 C
–40 C
OUTPUT SOURCE CURRENT, IRST ( A)
–7
3.5
3.0
2.5
2.0
1.5
1.0
0.5
–1
–8
–6
–3
–4
–5
29045 G24
–2
0
V1 = 3.3V
V2 = 1.5V
S1 = TOL = V1
S2 = OPEN
NO PULL-UP R
25 C
85 C
–40 C
RST Pull-Up Current (IRST)
vs Supply Voltage (VCC)
RST Output Voltage High (VOH)
vs RST Output Source Current (IRST)
RST Output Voltage High (VOH)
vs RST Output Source Current (IRST)
RST Output Voltage Low (VOL)
vs RST Pull-Down Current (IRST)
RST Output Voltage Low (VOL)
vs RST Pull-Down Current (IRST)
RST Pull-Up Current (IRST)
vs Supply Voltage (VCC)
TYPICAL PERFORMANCE CHARACTERISTICS
Specifications are at TA = 25°C unless otherwise noted.
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 G17
123
5
RST AT 150mV
RST AT 50mV
V2 = S1 = S2 = TOL = V1
NO PULL-UP R
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
RST Output Voltage vs V1
RST Pull-Down Current (IRST)
vs Supply Voltage (VCC)
RST Pull-Down Current (IRST)
vs Supply Voltage (VCC)



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