LT1243M データシートの表示（PDF） - Linear Technology
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LT1243M Datasheet PDF : 16 Pages
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LT1241 Series
TYPICAL PERFOR A CE CHARACTERISTICS
Undervoltage Lockout – LT1241
11
10
START-UP THRESHOLD
9
8
MINIMUM OPERATING VOLTAGE
7
6
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1241 • TPC01
Undervoltage Lockout –
LT1242, LT1244
17
START-UP THRESHOLD
16
15
11
MINIMUM OPERATING VOLTAGE
10
9
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1241 • TPC02
Start-Up Current
200
START-UP
THRESHOLD
150
LT1243/5
LT1241
LT1242/4
100
50
TJ = 25°C
0
0 2 4 6 8 10 12 14 16 18
VCC (V)
LT1241 • TPC04
Supply Current vs
Oscillator Frequency
10
9
8
LT1242, LT1243
7
LT1241, LT1244, LT1245
6
5
4
3
2
VCC = 15V
RT = 10k
1 CL = 15pF
0
10k
100k
1M
OSCILLATOR FREQUENCY (Hz)
LT1241 • TPC18
Start-Up Current
200
180
160
140
120
100
80
60
40
20
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1241 • TPC05
Oscillator Frequency
60
58
56
VCC = 5V
RT = 10k
CT = 3300pF
54
52
50
48
46
44
42
40
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1241 • TPC07
4
Undervoltage Lockout –
LT1243, LT1245
11
10
9
START-UP THRESHOLD
8
MINIMUM OPERATING VOLTAGE
7
6
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1241 • TPC03
Supply Current
10
VCC = 15V
RT = 10k
9 CT = 3300pF
8
7
6
5
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1241 • TPC06
Oscillator Sink Current
8.7
8.6 VPIN4 = 2V
8.5
8.4
8.3
8.2
8.1
8.0
7.9
7.8
7.7
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1241 • TPC08
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