参数资料
型号: LT3574IMS#TRPBF
厂商: Linear Technology
文件页数: 11/24页
文件大小: 0K
描述: IC REG FLYBK ISO ADJ .65A 16MSOP
标准包装: 2,500
类型: 回扫,隔离
输出类型: 可调式
输出数: 1
输出电压: 可调至 60V
输入电压: 3 V ~ 40 V
PWM 型: 电流模式,混合
频率 - 开关: 40kHz ~ 1MHz
电流 - 输出: 650mA
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-TFSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
供应商设备封装: 16-MSOP
相关产品: 732-2669-2-ND - TRANS FLYBACK LT3748 20UH SMD
732-2669-6-ND - TRANS FLYBACK LT3748 20UH SMD
732-2668-6-ND - TRANS FLYBACK LT3748 14UH SMD
732-2667-6-ND - TRANS FLYBACK LT3748 500UH SMD
732-2666-6-ND - TRANS FLYBACK LT3748 12UH SMD
732-2665-6-ND - TRANS FLYBACK LT3748 12UH SMD
732-2664-6-ND - TRANS FLYBACK LT3748 15UH SMD
732-2663-6-ND - TRANS FLYBACK LT3748 15UH SMD
732-2662-6-ND - TRANS FLYBACK LT3748 8UH SMD
732-2661-6-ND - TRANS FLYBACK LT3748 8UH SMD
更多...
LT3574
APPLICATIONS INFORMATION
TRANSFORMER DESIGN CONSIDERATIONS
Transformer specification and design is perhaps the most
critical part of successfully applying the LT3574. In addition
to the usual list of caveats dealing with high frequency
isolated power supply transformer design, the following
information should be carefully considered.
Linear Technology has worked with several leading mag-
netic component manufacturers to produce pre-designed
flyback transformers for use with the LT3574. Table 5 shows
the details of several of these transformers.
Table 5. Predesigned Transformers—Typical Specifications Unless Otherwise Noted
TRANSFORMER
PART NUMBER
PA3018NL
PA2626NL
PA2627NL
PA3019NL
PA3020NL
PA3021NL
750311304
750310564
750370040
750370041
750370047
750311307
750311308
L10-1022
SIZE (W × L × H)
mm
12.70 × 10.67 × 9.14
12.70 × 10.67 × 9.14
15.24 × 13.1 × 11.45
12.70 × 10.67 × 9.14
12.70 × 10.67 × 9.14
12.70 × 10.67 × 9.14
15.24 × 13.3 × 11.43
15.24 × 13.3 × 11.43
9.14 × 9.78 × 10.54
9.14 × 9.78 × 10.54
13.35 × 10.8 × 9.14
15.24 × 13.3 × 11.43
15.24 × 13.3 × 11.43
9.52 × 9.52 × 4.95
L PRI
(μH)
50
30
50
50
60
50
50
63
30
50
30
100
100
30
L LEAKAGE
(nH)
700
403
766
700
680
195
825
450
150
450
150
2000
2090
-
NP:NS:NB
4:1:1
3:1:1
3:1:1
3:1:1
2:1:0.33
1:1:0.33
4:1:1.5
3:1:1
3:1:1
3:1:1
3:1:1
2:1:0.33
1:1:0.33
1:1
R PRI
(mΩ)
250
240
420
250
400
100
146
115
60
190
60
173
325
0.142
R SEC
(mΩ)
32
66
44
72
200
200
17
50
12.5
26
12.5
104
480
0.142
VENDOR
Pulse Engineering
Pulse Engineering
Pulse Engineering
Pulse Engineering
Pulse Engineering
Pulse Engineering
Würth Elektronik
Würth Elektronik
Würth Elektronik
Würth Elektronik
Würth Elektronik
Würth Elektronik
Würth Elektronik
BH Electronics
TARGET
APPLICATIONS
3.3V, 0.7A
5V, 0.5A
5V, 0.5A
5V, 0.5A
12V, 0.25A
15V, 0.15A
3.3V, 0.7A
±5V, 0.5A
5V, 0.5A
5V, 0.5A
5V, 0.5A
12V, 0.25A
15V, 0.15A
5V, 0.1A
3574f
  
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参数描述
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