LT1619 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1619 Datasheet PDF : 20 Pages
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TYPICAL APPLICATIO S
LT1619
10k
CNY17-3
VIN
10.5V TO
13.7V
8.1V
20k
6.2V
0.22µF 1k
50V 1W
T1
•
43Ω W1
W3
MBRS1100T3
•
330pF W2
W4
50V
330pF
100V 43Ω
1/4W
MBRS1100T3
1µF
50V
2.2µF
40V
62k 100Ω
220pF 470Ω
–32.5V
470pF 121Ω
LT1431CZ
2.2µF
40V
–65V
2.49k
0.1µF
150µF
20V
SANYO
20SV150M
(OS-CON)
82k
10k
1
S/S
8
VIN
2
FB
7
DRV
LT1619
3
6
VC
GATE
100Ω 4
5
GND SENSE
1µF
10µF
MBRS1100T3
IRLR024N
55V, 0.065Ω
QG = 15nC
0.008Ω
T1
PHILIPS EFD20-3F3-A100-S
CORE SET (0.013" GAP, AI = 100nH/T2
W4 6T TRIFILAR 28AWG
W3 24T 28AWG
W2 24T 28AWG
W1 6T TRIFILAR 28AWG
2mil
POLYESTER
FILM
1619 F18a
Figure 18a. Isolated Local SLIC Power Supply (Flyback) 20W Total Output Power (65V/0.3A or 32.5V/0.6A)
90
85
80
75
70
65
60
55
50
10
VIN = 13.7V
VIN = 12V
VIN = 10.5V
100
LOAD CURRENT (mA)
1000
1619 F18b
Figure 18b. Efficiency of the Isolated Local SLIC (Flyback)
17
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