参数资料
型号: 750108
厂商: Wurth Electronics Inc
文件页数: 4/30页
文件大小: 0K
描述: BOARD EVAL FOR LT3748
设计资源: LT3748 Design Schematic/Tips
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,隔离
功率 - 输出: 30W
输出电压: 12V
电流 - 输出: 2.5A
输入电压: 22 ~ 75 V
稳压器拓扑结构: 回扫
板类型: 完全填充
已供物品:
已用 IC / 零件: LT3748
相关产品: LT3748HMS#TRPBF-ND - IC REG CTRLR FLYBK ISO CM 16MSOP
LT3748HMS#PBF-ND - IC REG CTRLR FLYBK ISO CM 16MSOP
LT3748IMS#TRPBF-ND - IC REG CTRLR FLYBK ISO CM 16MSOP
LT3748IMS#PBF-ND - IC REG CTRLR FLYBK ISO CM 16MSOP
LT3748EMS#TRPBF-ND - IC REG CTRLR FLYBK ISO CM 16MSOP
LT3748EMS#PBF-ND - IC REG CTRLR FLYBK ISO CM 16MSOP
其它名称: 732-3308
LT3748
TYPICAL PERFORMANCE CHARACTERISTICS T A = 25°C, unless otherwise noted.
Output Regulation vs Temperature
Quiescent Current vs Temperature
Quiescent Current vs V IN Voltage
15.6
15.4
FIGURE 15 CIRCUIT
I OUT = 150mA ON EACH OUTPUT
V IN = 12V
1.7
V SS = 0V
1.6 INTV CC = OPEN
1.5
V IN = 72V
1.6
1.4
1.2
V SS = 0V
INTV CC = OPEN
15.2
15.0
14.8
14.6
1.4
1.3
1.2
1.1
1.0
0.9
V IN = 12V
V IN = 36V
V IN = 6V
1.0
0.8
0.6
0.4
0.2
14.4
–50 –25
0
25
50
75
100 125 150
0.8
–50 –25
0
25
50
75
100 125 150
0
0
20
40
60
80
100
7.5
TEMPERATURE ( C)
3748 G01
INTV CC Voltage vs Temperature
7.5
TEMPERATURE (°C)
INTV CC Voltage vs V IN Voltage
3748 G02
4.0
V IN (V)
INTV CC Undervoltage Lockout
vs Temperature
3748 G03
7.4
7.3
7.2
7.0
6.5
I INTVCC = 0mA
I INTVCC = 10mA
3.9
3.8
7.1
I INTVCC = 0mA
6.0
3.7
RISING THRESHOLD
7.0
6.9
6.8
I INTVCC = 10mA
5.5
5.0
3.6
3.5
FALLING THRESHOLD
6.7
6.6
4.5
3.4
6.5
–50 –25
0
25
50
75
100 125 150
4.0
4
6
8
10
20
40
60
80
100
3.3
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
INTV CC Regulator Dropout
vs INTV CC Current
3748 G04
V IN VOLTAGE (V)
3748 G05
INTV CC Dropout vs Temperature
TEMPERATURE (°C)
3748 G06
Soft-Start Current vs Temperature
3.0
2.5
2.0
V IN = 5V
3.0
2.5
2.0
V IN = 5V
6
5
4
I INTVCC = 20mA
1.5
1.0
150°C
1.5
1.0
I INTVCC = 10mA
3
2
0.5
100°C
0.5
1
0
0
10 20 30
25°C
–50°C
40
0
–50 –25
0
25
50
I INTVCC = 5mA
75 100 125 150
0
–50 –25
0
25
50
75
100 125 150
INTV CC CURRENT (mA)
3748 G07
TEMPERATURE ( C)
3748 G08
TEMPERATURE ( C)
3748 G09
3748fa
4
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