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SI9124 Datasheet(Fiches technique) 12 Page - Vishay Siliconix

Numéro de pièce SI9124
Description  500-kHz Push-Pull DC-DC Converter With Integrated Secondary Synchronous Rectification Control
Télécharger  16 Pages
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Fabricant  VISHAY [Vishay Siliconix]
Site Internet  http://www.vishay.com
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 12 page
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Si9124
Vishay Siliconix
New Product
www.vishay.com
12
Document Number: 72099
S-03638—Rev. B, 20-Mar-03
TYPICAL CHARACTERISTICS
0
10
20
30
40
50
60
70
80
90
100
0.0
0.5
1.0
1.5
2.0
OUTA, OUTB Duty Cycle vs. VEP
VEP (V)
40
60
80
100
120
- 50
- 25
0
25
50
75
100
125
OUTA, OUTB Delay vs. Temperture
Temperature (
_C)
VCC = 12 V
td1, td3
td2, td4
3.6 V = VINDET
VCC = 12 V
7.2 V
4.8 V
30
40
50
60
70
80
90
100
2.5
3.5
4.5
5.5
6.5
7.5
VINDET (V)
OUTA, OUTB
Duty Cycle vs. VINDET @ 25_C
VEP = 1.2 V, VCC = 9.5 V
IHCUP vs. SS Duty Cycle, CSS 22 = nF
SS Duty Cycle (%) = t2 / (t1 + t2)
3.270
3.275
3.280
3.285
3.290
3.295
3.300
- 50
- 25
0
25
50
75
100
VREF vs. Temperature, VCC = 12 V
Temperature (
_C)
200
300
400
500
600
20
30
40
50
60
70
80
FOSC vs. ROSC @ VCC = 12 V
ROSC (kW)
6
7
8
9
10
11
12
13
14
10
20
30
40
50
VCC = 12 V
ViINDET = 4.8 V
OUTA = OUTB = 3 nF
CSEC_SYNC = 0.3 nF




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