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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)： | 3/8頁(yè) |
| 文件大小： | 206K |
| 代理商： | LT1144 |
3
LTC1144
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
SUPPLY VOLTAGE (V)
2
O
10
100
1000
6
10
14
4
8
12
16
18
LTC1144 TPC03
1
T
A
= 25°C
C
OSC
= 0
BOOST = V
+
BOOST = OPEN OR GROUND
Oscillator Frequency
vs Supply Voltage
Output Resistance
vs Supply Voltage
SUPPLY VOLTAGE (V)
2
0
O
)
50
100
150
200
6
10
14
18
LTC1144 TPC01
250
300
4
8
12
16
T
A
= 25°C
TEMPERATURE (°C)
–55
O
)
100
120
140
25
75
LTC1144 TPC02
80
60
–25
0
50
100
125
40
20
V
+
= 5V
I
L
= 3mA
V
+
= 15V
I
L
= 20mA
Output Resistance vs Temperature
Oscillator Frequency
vs Temperature
Output Voltage vs Load Current
Oscillator Frequency as a
Function of C
OSC
EXTERNAL CAPACITANCE (PIN 7 TO GND), C
OSC
(pF)
1
O
1
10
10000
LTC1144 TPC04
0.1
0.01
10
100
1000
1000
100
T
A
= 25°C
V
+
= 15V
BOOST = OPEN OR GROUND
BOOST = V
+
LOAD CURRENT (mA)
0
–15
O
–10
–5
0
10
20
30
40
LTC1144 TPC06
50
60
T
A
= 25°C
V
+
= 15V
C1 = C2 = 10
μ
F
BOOST = OPEN
R
OUT
= 56
TEMPERATURE (°C)
–55
–25
O
10
100
1000
0
25
50
75
100
125
LTC1144 TPC05
1
BOOST = V
+
BOOST = OPEN OR GROUND
T
A
= 25°C
V
+
= 15V
Power Conversion Efficiency and
Supply Current vs Load Current
LOAD CURRENT (mA)
0
–5
O
–4
–3
–2
–1
0
5
10
15
20
LTC1144 TPC07
25
30
T
A
= 25°C
V
+
= 5V
C1 = C2 = 10
μ
F
BOOST = OPEN
R
OUT
= 90
Output Voltage vs Load Current
Supply Current as a Function of
Oscillator Frequency
OSCILLATOR FREQUENCY (kHz)
0.01
S
μ
A
100
1000
100
LTC1144 TPC08
10
1
0.1
1
10
10000
T
A
= 25°C
C1 = C2 = 10
μ
F
V
+
= 15V
V
+
= 5V
LOAD CURRENT (mA)
0
P
S
60
80
100
40
LTC1144 TPC09
40
20
0
60
80
100
40
20
0
10
20
30
50
P
EFF
I
S
T
A
= 25°C
V
+
= 15V
C1 = C2 = 10
μ
F
BOOST = OPEN
(SEE TEST CIRCUIT)
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