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LT3752 Datasheet(PDF) 52 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) 52 Page - Analog Devices

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LT3752/LT3752-1
52
Rev. C
For more information www.analog.com
06/19
www.analog.com
ANALOG DEVICES, INC. 2014–2019
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
LT8311
Preactive Secondary Synchronous and
Opto Control for Forward Converters
Optimized for Use with Primary-Side LT3752/-1, LT3753 and LT8310 Controllers
LTC3765/LTC3766
Synchronous No-Opto Forward Controller
Chip Set with Active Clamp Reset
Direct Flux Limit, Supports Self Starting Secondary Forward Control
LTC3722/LTC3722-2
Synchronous Full Bridge Controllers
Adaptive or Manual Delay Control for Zero Voltage Switching, Adjustable
Synchronous Rectification Timing
LT3748
100V Isolated Flyback Controller
5V ≤ VIN ≤ 100V, No Opto Flyback , MSOP-16 with High Voltage Spacing
LT3798
Off-Line Isolated No-Opto Flyback
Controller with Active PFC
VIN and VOUT Limited Only by External Components
75V to 150V, 24V/14A 340W No-Opto, Active Clamp Isolated Forward Converter
Efficiency vs Load Current
VOUT vs Load Current (No-Opto)
R4
93.1k
R5
53k
R3
5.76k
R6
10k
R7
80.1k
R8
75k
R9
52.3k
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
VAUX
SYNC
VIN
GND
FB
LT8311
PGOOD
R14
2k
R15
0.0075
R18
0.15
R16
10k
C23 3.3nF
R17
499
R35
C22
220nF
R37
100
R36
C10
4.7µF
C9
10µF
INTVCC
VAUX
D1
C21
470pF
M5
BSP300
D3
T2
T4
D2
M1
IPB200N25N3
IRFL214
M3
M2
R12
806
2.2nF
C2
0.47µF
C3
0.1µF
C4
3.3nF
C5
4.7µF
C11
2.2µF
C13
22µF
25V
×4
VOUT
24V
14A
C14
470µF
25V
C12
4.7µF
3752 TA08
C6 220pF
T3
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
IPB072N15N3G
R20
432k
L1, 15µH
+
•
•
•
•
•
•
•
C1
2.2µF
250V
VIN
75V TO
150V
GND
OVLO
HFB
C8
15nF
250V
C15
4.7nF
250V
R19
1k
•
•
R21
100
R38
0.003
R22
100
C27
120pF
C24
10nF
250V
D4
R38
10k
LOAD CURRENT (A)
0
28
27
26
25
24
20
23
22
21
2
3752 TA08a
16
12
14
6
8
10
4
VIN = 75V
VIN = 100V
VIN = 125V
VIN = 150V
LOAD CURRENT (A)
0
96
95
94
93
92
91
86
90
89
88
87
2.5
3752 TA08b
15
7.5
10
12.5
5
VIN = 75V
VIN = 100V
VIN = 125V
VIN = 150V



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