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LT3752 Datasheet(PDF) 44 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) 44 Page - Analog Devices

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LT3752/LT3752-1
44
Rev. C
For more information www.analog.com
TYPICAL APPLICATIONS
18V to 72V, 12V/12.5A, 150W No-Opto, Active Clamp Isolated Forward Converter
VOUT vs Load Current (No-Opto)
Efficiency vs Load Current
R4
49.9k
R5
22.6k
R3
1.82k
R6
7.32k
R7
34k
R8
60.4k
R9
31.6k
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
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
D3
T2
D2
D1
M1
BSC077N12NS3
FDMS86101
R12
1.1k
2.2nF
C2
0.33µF
C3
22nF
C4
22nF
C5
4.7µF
C11
2.2µF
C13
22µF
16V
×2
VOUT
12V
12.5A
C14
470µF
16V
C12
4.7µF
3752 TA02
C6 220pF
T3
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
R20
499k
L1
6.8µH
R21
100
R22
100
+
•
•
•
•
•
•
•
C1
4.7µF
100V
×3
VIN
18V TO 72V
GND
OVLO
HFB
Si2325DS
M3
M4
BSC077N12NS3
M2
C24
2.2nF
250V
R38
20k
D4
LOAD CURRENT (A)
0
14.0
13.5
13.0
12.5
12.0
11.0
10.5
11.5
10.0
4
2
3752 TA02a
12
8
10
6
VIN = 70V
VIN = 60V
VIN = 48V
VIN = 36V
VIN = 20V
LOAD CURRENT (A)
0
96
94
92
90
88
86
6
3
3752 TA02b
15
12
9
24VIN
48VIN
72VIN



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