參數(shù)資料
型號(hào)： LT1144
廠商： Linear Technology Corporation
英文描述： Octal Bus Transceivers With 3-State Outputs 20-PDIP 0 to 70
中文描述： 開(kāi)關(guān)電容寬輸入范圍電壓轉(zhuǎn)換器，帶有關(guān)斷
文件頁(yè)數(shù)： 2/8頁(yè)
文件大?。?/td> 206K
代理商： LT1144
2
LTC1144
U
PACKAGE/ORDER U
A
(Note 1)
Supply Voltage (V
+
) (Transient) .............................. 20V
Supply Voltage (V
+
) (Operating)............................. 18V
Input Voltage on Pins 1, 6, 7
(Note 2)............................ –0.3V < V
IN
< (V
+
) + 0.3V
Output Short-Circuit Duration
V
+
≤
10V .................................................... Indefinite
V
+
≤
15V ........................................................ 30 sec
V
+
≤
20V ............................................. Not Protected
Power Dissipation............................................. 500mW
Operating Temperature Range
LTC1144C................................................0
°
C to 70
°
C
LTC1144I............................................ –40
°
C to 85
°
C
Storage Temperature Range ................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
TOP VIEW
1
2
3
4
8
7
6
5
BOOST
CAP
+
GND
CAP
–
V
+
OSC
SHDN
V
OUT
S8 PACKAGE
8-LEAD PLASTIC SOIC
T
JMAX
= 110°C,
θ
JA
= 130°C/W
1
2
3
4
8
7
6
5
TOP VIEW
BOOST
CAP
+
GND
CAP
–
V
+
OSC
SHDN
V
OUT
N8 PACKAGE
8-LEAD PLASTIC DIP
T
JMAX
= 110°C,
θ
JA
= 100°C/W
S8 PART MARKING
1144
1144I
LTC1144CS8
LTC1144IS8
LTC1144CN8
LTC1144IN8
ORDER PART
NUMBER
Consult factory for Military grade parts.
The
G
denotes specifications which apply over the full operating
temperature range; all other limits and typicals at T
A
= 25
°
C.
Note 1:
Absolute maximum ratings are those values beyond which the life
of a device may be impaired.
Note 2:
Connecting any input terminal to voltages greater than V
+
or less
than ground may cause destructive latch-up. It is recommended that no
inputs from sources operating from external supplies be applied prior to
power-up of the LTC1144.
Note 3:
f
OSC
is tested with C
OSC
= 100pF to minimize the effects of test
fixture capacitance loading. The 0pF frequency is correlated to this 100pF
test point, and is intended to simulate the capacitance at pin 7 when the
device is plugged into a test socket and no external capacitor is used.
LTC1144C
TYP
LTC1144I
TYP
SYMBOL PARAMETER
Supply Voltage Range
I
S
Supply Current
CONDITIONS
R
L
= 10k
R
L
=
∞
, Pins 1, 6 No Connection,
f
OSC
= 10kHz
SHDN = 0V, R
L
=
∞
, Pins 1, 7
No Connection
V
+
= 5V, R
L
=
∞
, Pins 1, 6
No Connection, f
OSC
= 4kHz
V
+
= 5V, SHDN = 0V, R
L
=
∞
,
Pins 1, 7 No Connection
V
+
= 15V, I
L
= 20mA at 10kHz
MIN
2
MAX
18
1.1
1.3
0.03
MIN
2
MAX
18
1.1
1.6
0.035
UNITS
G
V
mA
mA
mA
G
G
0.008
0.008
0.10
0.13
0.015
0.10
0.15
0.018
mA
mA
mA
G
G
0.002
0.002
R
OUT
Output Resistance
56
100
120
250
56
100
140
300
G
V
+
= 5V, I
L
= 3mA at 4kHz
V
+
= 15V (Note 3)
V
+
= 5V
R
L
= 2k at 10kHz
R
L
=
∞
V
+
= 5V (V
OSC
= 0V to 5V)
V
+
= 15V (V
OSC
= 0V to 15V)
G
90
10
4
93
99.9
0.5
4
90
10
4
93
99.9
0.5
4
f
OSC
Oscillator Frequency
kHz
kHz
%
%
μ
A
μ
A
Power Efficiency
Voltage Conversion Efficiency
Oscillator Sink or Source Current
G
90
97.0
90
97.0
G
ELECTRICAL C
V
+
= 15V, C
OSC
= 0pF, T
A
= 25
°
C, Test Circuit Figure 1, unless otherwise noted.
HARA TERISTICS
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