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LT3752 Datasheet(PDF) 42 Page - Linear Technology

Part # LT3752
Description  Synchronous Rectifier Controller with Opto-Coupler Driver for Forward Converters
PDF  48 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3752 Datasheet(HTML) 42 Page - Linear Technology

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LT8311
42
8311f
For more information www.linear.com/LT8311
TYPICAL APPLICATIONS
18V to 72V, 12V/12.5A, 150W No-Opto, Active Clamp Isolated Forward Converter
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 G45R2_0404.04D
T2: BH ELECTRONICS L00-3250
T3: PULSE PE-68386NL
L1: CHAMPS G45AH2-0404-D4
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
8311 TA04a
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
8311 TA04b
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
8311 TA04c
15
12
9
24VIN
48VIN
72VIN
VOUT vs Load Current (No-Opto)
Efficiency vs Load Current



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