参数资料
型号: LT1339ISW#TRPBF
厂商: Linear Technology
文件页数: 6/20页
文件大小: 0K
描述: IC REG CTRLR BST PWM CM 20-SOIC
标准包装: 1,000
PWM 型: 电流模式
输出数: 1
频率 - 最大: 150kHz
占空比: 90%
电源电压: 最高 60V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
LT1339
TYPICAL PERFOR M A N CE CHARACTERISTICS
Sense Amplifier Input Bias
Sense Amplifier Input Bias
UVLO Thresholds vs Temperature
Current (Source) vs Temperature
Current (Sink) vs Temperature
10.00
9.75
9.50
9.25
9.00
8.75
RISING
FALLING
1200
1100
1000
900
800
700
V CMSENSE = 0V
60
55
50
45
40
V CMSENSE = 10V
8.50
600
8.25
500
35
8.00
–50 –25
0
25
50
75
100
125
400
–50 –25
0
25
50
75
100
125
30
–50 –25
0
25
50
75
100
125
TEMPERATURE ( ° C)
1339 G18
RUN/SHDN Input Current
vs Pin Voltage
800
FULL OPERATING
TEMPERATURE ( ° C)
600
1339 G19
RUN/SHDN Input Current
vs Pin Voltage
FULL OPERATING
TEMPERATURE ( ° C)
1339 G20
700
TEMPERATURE
TEMPERATURE
600
RANGE
450
RANGE
UPPER
LIMIT
500
400
UPPER
LIMIT
TYPICAL
300
TYPICAL
300
LOWER
LIMIT
200
LOWER
150
LIMIT
100
0
0
0.5
1.0 (1.25) 1.5
2.0
2.5
0
0
2 4 6 8
10
12
100
RUN/SHDN INPUT VOLTAGE (V)
Maximum Duty Cycle vs R CT
1339 G22
1.01
RUN/SHDN SUPPLY VOLTAGE (V)
1339 G23
Operating Frequency (Normalized)
vs Temperature
90
80
70
60
50
40
30
20
10
I DISCHG = 2.75mA
I DISCHG = 2.1mA
FULL OPERATING
TEMPERATURE
RANGE
1.00
0.99
0
1
2
4
6
10 20
40 60 100
0.98
–50 –25
0
25
50
75
100
125
R CT (k ? )
1339 G21
TEMPERATURE ( ° C)
1339 G24
sn1339 1339fas
6
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