Datasheet

LT3798
17
3798fa
TYPICAL APPLICATIONS
3798 TA02
V
IN_SENSE
V
IN
DCM
FB
V
REF
CTRL2
CTRL1
GATE
SENSE
INTV
CC
GND
LT3798
COMP
+
VC COMP
–
C10
560µ
F
× 2
BR1: DIODES, INC. HD06
C8: VISHAY 440LD22-R
D1: CENTRAL SEMICONDUCTOR CMR1U-06M
D2, D3: DIODES INC. BAV20W
D4: CENTRAL SEMICONDUCTOR CMR1U-02M
M1: FAIRCHILD FDPF15N65
T1: COILCRAFT JA4429-AL
Z1: FAIRCHILD SMBJ170A
Z2: CENTRAL SEMICONDUCTOR CMZ5937B
C4
4.7pF
C5
10µ
F
C8
2.2nF
4:1:1
C7, 0.1µF
R16
20Ω
R17
20Ω
D2
D4
Z1
D1
R
S
0.05Ω
R4
499k
R3
499k
R8
100k
R7
100k
R15
4.99k
C6
22pF
R14
90.9k
CTRL3
EN/UVLO
R9
40.2k
R11
100k
R10
16.5k
C3
2.2µF
OVP
R12
221k
C9
4.7µF
R13
2k
D3
Z2
“Y1 CAP”
M1
24V
1A
R6
95.3k
R5
1M
90V
TO 265V
AC
C2
0.1µF
C1
0.068µF
BR1
L1
33mH
L2
800µH
+
Universal Input 24W PFC Bus Converter
3798 TA03
V
IN_SENSE
V
IN
DCM
FB
V
REF
CTRL2
CTRL1
GATE
SENSE
INTV
CC
GND
LT3798
COMP
+
V
C
COMP
–
C10
1000µ
F
×2
C11
10µ
F
×2
BR1: DIODES, INC. HD06
C8: VISHAY 440LD22-R
C11: MURATA GRM32ER7YA106KA12L
D1: CENTRAL SEMICONDUCTOR CMR1U-06M
D2, D3: DIODES INC. BAV20W
D4: DIODES INC. SBR20A200CTB
M1: INFINEON IPB60R165CP
T1: WÜRTH ELEKTRONIK 750811248
Z1: FAIRCHILD SMBJ170A
Z2: CENTRAL SEMICONDUCTOR CMZ5937B
C4
22pF
C5
10µ
F
C8
2.2nF
4:1:1
C3
1µF
C7, 0.1µF
R16
20Ω
R17
47Ω
D2
D4
M1
Z1
Z2
D1
R
S
0.03Ω
R4
499k
R3
499k
R8
100k
R7
100k
R15
5.49k
C6
22pF
R14
100k
CTRL3
EN/UVLO
OVP
R9
40.2k
R10
31.6k
R12
221k
R11
100k
R5
2.4M
R6
301k
C9
4.7µF
R13
33k
D3
24V
2A
90V
TO 265V
AC
C2
0.22µF
C1
0.1µF
BR1
L2
27mH
L1
1mH
+
“Y1 CAP”
Universal Input 48W PFC Application
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