Datasheet

LTC4278
39
4278fc
TYPICAL APPLICATION
•
•
4.7nF, 2kV
PS2801-1-L
1 3
6 4
30.9Ω
294k
0.1µF
100V
54.9k
3.01k
12k
100k
1.82k
38.3k
12m
100Ω
5.1Ω
1µF
2.2nF
33pF
0.1µF
33nF
1nF
EPA4271GE
CMLT3820G
10k
L1
180nH
HAT2169H
EPC3472G-LF
CMLT7820G
BAT54
t
ON
SYNCPGDLY
UVLO
PWRGD /PWRGD
SENSE
–
V
CMP
SENSE
+
R
CMP
V
NEG
V
NEG
R
CLASS
SHDN
V
PORTP
V
PORTN
V
PORTN
GNDOSCENDLY
LTC4278IDKD
EXPOSED PAD SOLDER SIDE
FB
NC
V
CC
SG
PG
C
CMP
20k
7.5V CMHZ4693
L2
8.2µH
V
CC
1µF
20Ω
BAS21
+
10µF 100V
C6 C2 3.3µF ×2
4278 TA02
PDS5100H
SMAJ58A
21.5k10Ω
24k
AUX
–
AUX
+
AUXILIARY SUPPLY
8V TO 57V
VPORT_N
VPORT_P
B1100 (8 PLCS)
B1100
SPARE2 SPARE1
L1: COILCRAFT, DO1813P-181HC L2: WÜRTH, 7443330820 C2, C6: TDK, C3225X7S2A335M C1, C3: MURATA, GRM31CR60J226KE19 C9: TDK, C3225X5R0J107M
RXCT
TXCT
20k
2.49k
S1B
47Ω
220pF
4 3 1 2
5
V
CC
6
12 11
7 8
10k
FDMS86101
3.3k
3.3nF
10k 15Ω
1µF
+V
OUT
+V
OUT
5V AT 4.5A
–V
OUT
•
•
C3, C1 22µF ×2
C9 100µF
T2P
T2P
BSS63LT1
FMMT624
•