參數(shù)資料
型號(hào): LTC1326I
廠商: Linear Technology Corporation
英文描述: Micropower Precision Triple Supply Monitors
中文描述: 微精密的三路電源監(jiān)視器
文件頁(yè)數(shù): 3/16頁(yè)
文件大?。?/td> 303K
代理商: LTC1326I
3
LTC1326/LTC1326-2.5
I
VCC5
I
VCC25
I
VCCA
V
CC5
Input Current (LTC1326)
V
CC25
Input Current (LTC1326-2.5)
V
CCA
Input Current
V
CC5
= 5V
V
CC25
= 2.5V
V
CCA
= 1V
0
°
C
T
A
70
°
C
–40
°
C
T
A
85
°
C
RST Low with 10k
Pull-Up to V
CC3
0
°
C
T
A
70
°
C
–40
°
C
T
A
85
°
C
SRST Low with 10k
Pull-Up to V
CC3
V
CC25
, V
CC3
or V
CCA
Less Than Reset
Threshold V
RT
by More Than 1%
PBR = 0V
0
°
C
T
A
70
°
C
–40
°
C
T
A
85
°
C
G
4
7
7
μ
A
μ
A
G
2.8
G
G
–5
–15
0
0
5
nA
nA
15
t
RST
Reset Pulse Width
G
G
140
140
50
200
200
100
13
280
300
200
ms
ms
μ
s
μ
s
t
SRST
t
UV
Soft Reset Pulse Width
V
CC
Undervoltage Detect to RST
G
I
PBR
PBR Pull-Up Current
G
G
3
3
7
7
10
15
0.8
μ
A
μ
A
V
V
ns
ms
V
IL
V
IH
t
PW
t
DB
PBR, RST Input Low Voltage
PBR, RST Input High Voltage
PBR Min Pulse Width
PBR Debounce
G
G
2
G
40
Deassertion of PBR Input to SRST
Output (PBR Pulse Width = 1
μ
s)
PBR Held Less Than V
IL
0
°
C
T
A
70
°
C
–40
°
C
T
A
85
°
C
I
SINK
= 5mA
I
SINK
= 100
μ
A,
0
°
C
T
A
70
°
C
G
20
35
t
PB
PBR Assertion Time for Transition
from Soft to Hard Reset Mode
G
G
1.4
1.4
2.0
2.0
0.15
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.15
0.15
2.8
3.0
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
s
s
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
OL
RST Output Voltage Low
G
V
CC3
= 1V, V
CC5
= 0V
V
CC3
= 0V, V
CC5
= 1V
V
CC3
= 1V, V
CC5
= 1V
V
CC3
= 1.1V, V
CC5
= 0V
V
CC3
= 0V, V
CC5
= 1.1V
V
CC3
= 1.1V, V
CC5
= 1.1V
V
CC3
= 1V, V
CC25
= 0V
V
CC3
= 0V, V
CC25
= 1V
V
CC3
= 1V, V
CC25
= 1V
V
CC3
= 1.1V, V
CC25
= 0V
V
CC3
= 0V, V
CC25
= 1.1V
V
CC3
= 1.1V, V
CC25
= 1.1V
G
G
G
I
SINK
= 100
μ
A,
–40
°
C
T
A
85
°
C
G
G
G
I
SINK
= 100
μ
A,
0
°
C
T
A
70
°
C
G
G
G
I
SINK
= 100
μ
A,
–40
°
C
T
A
85
°
C
G
G
G
SRST Output Voltage Low
RST Output Voltage Low
RST Output Voltage High (Note 3)
SRST Output Voltage High (Note 3)
RST Output Voltage High
Prop Delay RST to RST
High Input to Low Output
Prop Delay RST to RST
Low Input to High Output
I
SINK
= 2.5mA
I
SINK
= 2.5mA
I
SOURCE
= 1
μ
A
I
SOURCE
= 1
μ
A
I
SOURCE
= 600
μ
A
C
RST
= 20pF
G
G
V
OH
G
V
CC3
– 1
V
CC3
– 1
V
CC3
– 1
G
G
t
PHL
25
ns
t
PLH
C
RST
= 20pF
45
ns
ELECTRICAL CHARACTERISTICS
V
CC3
= 3.3V, V
CC5
= 5V (for LTC1326),V
CC25
= 2.5V (for LTC1326-2.5), V
CCA
= V
CC3
, T
A
= 25
°
C unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
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