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LT3752 Datasheet(PDF) 43 Page - Analog Devices

Part # LT3752
Description  Active Clamp Synchronous Forward Controllers with Internal Housekeeping Controller
PDF  52 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT3752 Datasheet(HTML) 43 Page - Analog Devices

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LT3752/LT3752-1
43
Rev. C
For more information www.analog.com
Figure 20. 18V to 72V, 12V/12.5A, 150W Active Clamp Isolated Forward Converter
Efficiency vs Load Current
APPLICATIONS INFORMATION
R4
49.9k
R5
22.6k
R3
1.82k
R6
7.32k
R7
34k
R8
71.5k
R9
31.6k
R23
100k
R24
100k
R10
2.8k
R11
10k
T1: CHAMPS G45AH2-0404-04
T2: BH ELECTRONICS L00-3250
T3: PULSE PE-68386NL
L1: CHAMPS PQI2050-6R8
D1, D2, D3: BAS516
D4: CENTRAL SEMI CMMR1U-02
R13
560
R28
3.16k
R27
100k
VAUX
VAUX
SYNC
VIN
GND
FB
LT8311
PGOOD
R14
2k
R15
0.006
R16
10k
R18
0.15
R17
499
C10
2.2µF
C9
2.2µF
INTVCC
VAUX
M5
ZVN4525E6
Si2325DS
D3
T2
D2
D1
M1
BSC077N12NS3
M2
M3
FDMS86101
BSC077N12NS3
R25
100
R12
1.1k
R26
1k
2.2nF
C2
0.33µF
C3
22nF
PS2801-1
C4
22nF
C5
4.7µF
C11
2.2µF
C13
22µF
16V
×2
C24
2.2nF
250V
VOUT
12V
12.5A
C14
470µF
16V
C12
4.7µF
C17
220nF
3752 F20a
C18
68pF
C19
4.7nF
C6 220pF
T3
C16
1µF
INTVCC
INTVCC
SOUT
ISENSEN
ISENSEP
OUT
VIN
AOUT
HISENSE
HOUT
OC
R2
5.9k
R1
100k
UVLO_VSEC
LT3752
SYNC
C7
100nF
C8
15nF
T1
4:4
M4
R20
499k
R29
13.7k
L1
6.8µH
R30
100k
R31
11.3k
R21
100
R22
100
R38
20k
+
•
•
•
•
•
•
•
C1
4.7µF
100V
×3
VIN
18V TO 72V
GND
OVLO
HFB
D4
C28
68pF
LOAD CURRENT (A)
0
96
94
92
90
88
86
6
3
3752 F20b
15
12
9
24VIN
48VIN
72VIN



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