参数资料
型号: LM2588-12MWC
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 稳压器
英文描述: 9.5 A SWITCHING REGULATOR, 200 kHz SWITCHING FREQ-MAX, UUC
封装: WAFER
文件页数: 8/33页
文件大小: 863K
代理商: LM2588-12MWC
Typical Flyback Regulator Applications (Continued)
Transformer Selection (T)
Figure 13 lists the standard transformers available for flyback regulator applications. Included in the table are the turns ratio(s) for
each transformer, as well as the output voltages, input voltage ranges, and the maximum load currents for each circuit.
Transformer Footprints
Figure 15 through 32 show the footprints of each transformer, listed in Figure 14.
Applications
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Transformers
T1
T2
T3
T4
V
IN
4V–6V
8V–16V
4V–6V
18V–36V
V
OUT1
3.3V
5V
12V
5V
I
OUT1 (Max)
1.8A
1.4A
1.2A
0.3A
1A
2.5A
N
1
2.5
0.8
0.35
V
OUT2
12V
I
OUT2 (Max)
0.3A
1A
0.5A
N
2
2.5
0.8
V
OUT3
12V
I
OUT3 (Max)
0.5A
N
3
0.8
FIGURE 13. Transformer Selection Table
Transformer
Type
Manufacturers’ Part Numbers
Coilcraft
Coilcraft (Note 16)
Pulse (Note 17)
Renco
Schott
(Note 16)
Surface Mount
(Note 18)
(Note 19)
T1
Q4434-B
Q4435-B
PE-68411
RL-5530
67141450
T2
Q4337-B
Q4436-B
PE-68412
RL-5531
67140860
T3
Q4343-B
PE-68421
RL-5534
67140920
T4
Q4344-B
PE-68422
RL-5535
67140930
Note 16: Coilcraft Inc.,:
Phone: (800) 322-2645
1102 Silver Lake Road, Cary, IL 60013:
Fax: (708) 639-1469
European Headquarters, 21 Napier Place:
Phone: +44 1236 730 595
Wardpark North, Cumbernauld, Scotland G68 0LL:
Fax: +44 1236 730 627
Note 17: Pulse Engineering Inc.,:
Phone: (619) 674-8100
12220 World Trade Drive, San Diego, CA 92128:
Fax: (619) 674-8262
European Headquarters, Dunmore Road:
Phone: +353 93 24 107
Tuam, Co. Galway, Ireland:
Fax: +353 93 24 459
Note 18: Renco Electronics Inc.,:
Phone: (800) 645-5828
60 Jeffryn Blvd. East, Deer Park, NY 11729:
Fax: (516) 586-5562
Note 19: Schott Corp.,:
Phone: (612) 475-1173
1000 Parkers Lane Road, Wayzata, MN 55391:
Fax: (612) 475-1786
FIGURE 14. Transformer Manufacturer Guide
T1
DS012420-31
Top View
FIGURE 15. Coilcraft Q4434-B
T2
DS012420-32
Top View
FIGURE 16. Coilcraft Q4337-B
www.national.com
16
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