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LT3752 Datasheet(PDF) 44 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) 44 Page - Linear Technology

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LT8311
44
8311f
For more information www.linear.com/LT8311
TYPICAL APPLICATIONS
150V to 400V, 12V/16.7A, 200W No-Opto, Active Clamp Isolated Forward Converter
R4
95.3k
R5
40.2k
R3
2.94k
R6
13k
R7
100k
R8
107k
R9
78.7k
R10
22k
R11
10k
T1: CHAMPS LT80R2-12AC-3124005
T2: WÜRTH 750817020
T3: PULSE PE-68386NL
L1: COILCRAFT AGP2923-153
D1: CENTRAL SEMI CMR1U-10
D2, D3, D5: BAS516
D4: CENTRAL SEMI CMMR1U-02
R13
560
VAUX
SYNC
VIN
GND
FB
LT8311
PGOOD
R14
2k
R15
0.022
R18
0.15
R17
499
R35
374k
R36
374k
C10
4.7µF
C9
10µF
INTVCC
VAUX
INTVCC
M5
BSP300
D3
T2
D2
M1
IPD65R25OC6
IPD60R1K4C6
M3
M2
R12
806
2.2nF
C2
0.47µF
C3
0.22µF
C4
3.3nF
C5
4.7µF
C11
2.2µF
C13
33µF
16V
×4
VOUT
12V
16.7A
C14
330µF
16V
C12
4.7µF
VAUX
8311 TA06a
C6 220pF
T3
INTVCC
INTVCC
SOUT
ISENSEN
ISENSEP
OUT
VIN
AOUT
HISENSE
HOUT
OC
R2
5.76k
R1
499k
R34
499k
UVLO_VSEC
LT3752-1
SYNC
RJK0653DPB
×2
T1
31:5
C20
10µF
D5
M4
FDMS86200
×3
R20
432k
L1
15µH
+
•
•
•
•
•
•
•
D1
ACPL-W346
R16 4.2
C1
2.2µF
630V
VIN
150V TO
400V
GND
OVLO
HFB
CATHODE
ANODE
VEE
VOUT
VCC
C21
0.22µF
C8
47nF
630V
C15
10nF
630V
R19
402
R38
0.002
R21
100
R22
100
C27
120pF
C24
10nF
250V
D4
R38
10k
LOAD CURRENT (A)
0
14.0
13.5
13.0
12.5
12.0
11.5
10.0
11.0
10.5
4
2
8311 TA06b
18
8
12
10
14 16
6
VIN = 150V
VIN = 250V
VIN = 350V
VIN = 400V
LOAD CURRENT (A)
0
96
95
94
93
92
90
89
91
88
85
87
86
5
2.5
8311 TA06c
17.5
10
12.5
15
7.5
VIN = 150V
VIN = 250V
VIN = 350V
VIN = 400V
VOUT vs Load Current (No-Opto)
Efficiency vs Load Current



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