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參數(shù)資料
| 型號： | LTC1728-5 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Dual 4-Bit D-Type Latches With 3-State Outputs 24-PDIP 0 to 70 |
| 中文描述： | 精密四電源監(jiān)視器6引腳SOT - 23 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 187K |
| 代理商： | LTC1728-5 |
3
LTC2903-1
29031f
SYMBOL
I
V1
PARAMETER
V1 Input Current (Note 4)
CONDITIONS
V1 = 3.3V (LTC2903-A1)
V1 = 5V (LTC2903-B1, LTC2903-C1)
V2 = 2.5V (LTC2903-A1)
V2 = 3.3V (LTC2903-B1, LTC2903-C1)
V3 = 1.8V (LTC2903-A1, LTC2903-C1)
V3 = 2.5V (LTC2903-B1)
V4 = 0.55V (LTC2903-A1)
V4 = 1.8V (LTC2903-B1)
V4 = –5.2V (LTC2903-C1)
MIN
TYP
20
25
8
10
6
8
MAX
80
80
30
30
30
30
±
15
4
–6
260
UNITS
G
G
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
nA
μ
A
μ
A
ms
μ
s
I
V2
V2 Input Current (Note 4)
G
G
I
V3
V3 Input Current
G
G
I
V4
V4 Input Current
G
G
G
2
–3
200
150
t
RST
t
UV
Reset Time-Out Period
V
X
Undervoltage Detect to RST
G
140
V
X
Less Than Threshold V
RTX
by
More Than 1%
I
RST(DN)
= –1
μ
A
V
CC
= 0.2V, I
RST
= 0.1
μ
A
V
CC
= 0.5V, I
RST
= 5
μ
A
V
CC
= 1V, I
RST
= 200
μ
A
V
CC
= 3V, I
RST
= 2500
μ
A
V
OH
V
OL
Output Voltage High RST (LTC2903-1) (Note 5)
Output Voltage Low RST (Note 6)
G
V2 – 1
V
G
G
G
G
5
60
150
300
300
mV
mV
mV
mV
10
25
100
The
G
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 3.3V unless otherwise noted.
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
All currents into pins are positive, all voltages are referenced to
GND unless otherwise noted.
Note 3:
The internal supply voltage (V
CC
) is generated from the greater
voltage on the V1, V2 inputs.
Note 4:
Under typical operating conditions, quiescent current is drawn
from the V1 input. When V2 exceeds V1, V2 supplies the quiescent
current.
Note 5:
The RST output pin on the LTC2903-1 has an internal pull-up to
V2 of typically 10
μ
A. However, for faster rise times or for V
OH
voltages
greater than V2, use an external pull-up resistor.
Note 6:
At input voltages below 1V on V1 and V2, voltage on V3 assists
pulling down the RST output.
ELECTRICAL CHARACTERISTICS
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| LTC2903C | Octal Buffer/Driver With 3-State OUtputs 20-TSSOP -40 to 85 |
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參數(shù)描述 |
|---|---|
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