LTC1530IS8-1.9 查看數據表（PDF） - Linear Technology
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LTC1530IS8-1.9 Datasheet PDF : 24 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LTC1530
Error Amplifier Open-Loop Gain
vs Temperature
60
55
50
45
40
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1530 G10
IMAX Sink Current vs Temperature
300
280
PVCC = 12V
G1, G2 ARE NOT SWITCHING
260
240
220
200
180
160
140
120
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1530 G13
Shutdown Threshold Voltage
vs Temperature
250
PVCC = 12V
MEASURED AT
200 COMP PIN
150
100
50
0
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1530 G16
Oscillator Frequency
vs Temperature
350
340
330
320
310
300
290
280
270
260
250
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1530 G11
PVCC Supply Current
vs Gate Capacitance
70
PVCC = 12V
60
TA = 25°C
GATE CAPACITANCE = CG1 = CG2
50
40
30
20
10
0
012 345 67 8
GATE CAPACITANCE (nF)
1530 G14
Maximum G1 Duty Cycle
vs Ambient Temperature
92
PVCC = 12V
90 fOSC = 300kHz
88
G1, G2
CAPACITANCE
86
= 1000pF
2200pF
84
3300pF
82
5500pF
7700pF
80
THERMAL SHUTDOWN OCCURS
BEYOND THESE POINTS
78
–55 –35 –15 5 25 45 65 85 105 125
AMBIENT TEMPERATURE (°C)
1530 G12
PVCC Shutdown Supply Current
vs Temperature
80
75 PVCC = 12V
70
65
60
55
50
45
40
35
30
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1530 G15
Output Overcurrent Protection
3.0
Transient Response
2.5
PVCC = 12V
TA = 25°C
2.0 REFER TO
FIGURE 2
1.5
1.0
SHORT-CIRCUIT
0.5 CURRENT
50mV/DIV
2A/DIV
0
0 1 2 3 4 5 6 7 8 9 10
OUTPUT CURRENT (A)
1530 G17
50µs/DIV
1530 G18
5
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