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LTC1326CS8 Datasheet(PDF) 3 Page - Linear Technology

No. de pieza LTC1326CS8
Descripción Electrónicos  Micropower Precision Triple Supply Monitors
PDF  16 Pages
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Fabricante Electrónico  LINER [Linear Technology]
Página de inicio  http://www.linear.com
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LTC1326CS8 Datasheet(HTML) 3 Page - Linear Technology

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LTC1326/LTC1326-2.5
IVCC5
VCC5 Input Current (LTC1326)
VCC5 = 5V
q
47
µA
IVCC25
VCC25 Input Current (LTC1326-2.5)
VCC25 = 2.5V
q
2.8
7
µA
IVCCA
VCCA Input Current
VCCA = 1V
0
°C ≤ TA ≤ 70°C
q
–5
0
5
nA
–40
°C ≤ TA ≤ 85°C
q
–15
0
15
nA
tRST
Reset Pulse Width
RST Low with 10k
Ω Pull-Up to VCC3
0
°C ≤ TA ≤ 70°C
q
140
200
280
ms
–40
°C ≤ TA ≤ 85°C
q
140
200
300
ms
tSRST
Soft Reset Pulse Width
SRST Low with 10k
Ω Pull-Up to VCC3
q
50
100
200
µs
tUV
VCC Undervoltage Detect to RST
VCC25, VCC3 or VCCA Less Than Reset
13
µs
Threshold VRT by More Than 1%
IPBR
PBR Pull-Up Current
PBR = 0V
0
°C ≤ TA ≤ 70°C
q
37
10
µA
–40
°C ≤ TA ≤ 85°C
q
37
15
µA
VIL
PBR, RST Input Low Voltage
q
0.8
V
VIH
PBR, RST Input High Voltage
q
2V
tPW
PBR Min Pulse Width
q
40
ns
tDB
PBR Debounce
Deassertion of PBR Input to SRST
q
20
35
ms
Output (PBR Pulse Width = 1
µs)
tPB
PBR Assertion Time for Transition
PBR Held Less Than VIL
from Soft to Hard Reset Mode
0
°C ≤ TA ≤ 70°C
q
1.4
2.0
2.8
s
–40
°C ≤ TA ≤ 85°C
q
1.4
2.0
3.0
s
VOL
RST Output Voltage Low
ISINK = 5mA
q
0.15
0.4
V
ISINK = 100µA,
VCC3 = 1V, VCC5 = 0V
q
0.05
0.4
V
0
°C ≤ TA ≤ 70°CVCC3 = 0V, VCC5 = 1V
q
0.05
0.4
V
VCC3 = 1V, VCC5 = 1V
q
0.05
0.4
V
ISINK = 100µA,
VCC3 = 1.1V, VCC5 = 0V
q
0.05
0.4
V
–40
°C ≤ TA ≤ 85°CVCC3 = 0V, VCC5 = 1.1V
q
0.05
0.4
V
VCC3 = 1.1V, VCC5 = 1.1V
q
0.05
0.4
V
ISINK = 100µA,
VCC3 = 1V, VCC25 = 0V
q
0.05
0.4
V
0
°C ≤ TA ≤ 70°CVCC3 = 0V, VCC25 = 1V
q
0.05
0.4
V
VCC3 = 1V, VCC25 = 1V
q
0.05
0.4
V
ISINK = 100µA,
VCC3 = 1.1V, VCC25 = 0V
q
0.05
0.4
V
–40
°C ≤ TA ≤ 85°CVCC3 = 0V, VCC25 = 1.1V
q
0.05
0.4
V
VCC3 = 1.1V, VCC25 = 1.1V
q
0.05
0.4
V
SRST Output Voltage Low
ISINK = 2.5mA
q
0.15
0.4
V
RST Output Voltage Low
ISINK = 2.5mA
q
0.15
0.4
V
VOH
RST Output Voltage High (Note 3)
ISOURCE = 1µA
q
VCC3 – 1
V
SRST Output Voltage High (Note 3)
ISOURCE = 1µA
q
VCC3 – 1
V
RST Output Voltage High
ISOURCE = 600µA
q
VCC3 – 1
V
tPHL
Prop Delay RST to RST
CRST = 20pF
25
ns
High Input to Low Output
tPLH
Prop Delay RST to RST
CRST = 20pF
45
ns
Low Input to High Output
ELECTRICAL CHARACTERISTICS
VCC3 = 3.3V, VCC5 = 5V (for LTC1326),VCC25 = 2.5V (for LTC1326-2.5), VCCA = VCC3, TA = 25°C unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS



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