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LT3752 Datasheet(PDF) 46 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) 46 Page - Linear Technology

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LT8311
46
8311f
For more information www.linear.com/LT8311
TYPICAL APPLICATIONS
75V to 150V, 24V/14A 340W Active Clamp Isolated Forward Converter
(Using Gate Drive Transformer for High Side Active Clamp)
R4
93.1k
R5
53k
R3
5.76k
R6
10k
R7
80.1k
R8
82.5k
R9
52.3k
R23
22k
R24
22k
R10
22k
R11
10k
T1: CHAMPS LT80R2-12AC-1006
T2: WÜRTH 750817020
T3: PULSE PE-68386NL
T4: ICE GT05-111-100
L1: COILCRAFT AGP2923-153
D1: CENTRAL SEMI CMR1U-10
D2, D3, D5: BAS516
D4: CENTRAL SEMI CMMR1U-02
R13
560
R28
3.16k
R27
100k
VAUX
SYNC
VIN
GND
FB
LT8311
PGOOD
R14
2k
R15
0.0075
R18
0.15
R16
10k
C23 3.3nF
R17
499
R35
102k
C22
220nF
R37
100
R36
102k
C10
4.7µF
C9
10µF
INTVCC
VAUX
D1
C21
470pF
M5
BSP300
D3
T2
T4
D2
M1
IPB200N25N3
IRFL214
M3
M2
R25
100
R12
806
R26
1.2k
2.2nF
C2
0.47µF
C3
0.22µF
PS2801-1
C4
3.3nF
C5
4.7µF
C11
2.2µF
C13
22µF
25V
×4
VOUT
24V
14A
C14
470µF
25V
C12
4.7µF
C17
0.33µF
VAUX
8311 TA08a
C18
100pF
C19
22nF
C6 220pF
T3
C16
1µF
INTVCC
INTVCC
SOUT
ISENSEN
ISENSEP
OUT
VIN
AOUT
HISENSE
HOUT
OC
R2
6.04k
R1
6.98k
R34
698k
UVLO_VSEC
LT3752-1
SYNC
BSC047N08NS3
×2
T1
10:6
C20
10µF
D5
M4
1PB072N15N3G
R20
365k
R29
5.11k
L1
15µF
R30
100k
R31
5.36k
+
•
•
•
•
•
•
•
C1
2.2µF
250V
VIN
75V TO
150V
GND
OVLO
HFB
C8
15nF
250V
C15
4.7nF
250V
R19
1k
•
•
R21
100
R22
100
R38
0.003
C27
120pF
C24
10nF
250V
D4
R38
10k
C28
68pF
LOAD CURRENT (A)
0
96
95
94
93
92
91
86
90
89
88
87
2.5
8311 TA08b
15
7.5
10
12.5
5
VIN = 75V
VIN = 100V
VIN = 125V
VIN = 150V
Efficiency vs Load Current



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