Instruction Manual
MAX5042/MAX5043
Two-Switch Power ICs with Integrated
Power MOSFETs and Hot-Swap Controller
20 ______________________________________________________________________________________
RAMP
RCFF
REG9
DRVIN
FLTINT
DRVDEL
SYNC
PWMSD
REG5
R22
10kΩ
C25
0.22µF
R20
10kΩ
R14
10kΩ
R13
1MΩ
C12
0.1µF
C13
1µF
C9
220pF
R12
200kΩ
1%
V
IN+
32V TO 72V
C13
1µF
R15
24.9kΩ
1%
C14
100pF
RCOSC
C11
0.1µF
CSS
PWMNEG
PWMNEG,
CSN
OPTO
R21
1.24kΩ
1%
MAX5043
C6
0.1µF
BST
XFRMRH
XFRMRL
C7
1µF
R9
15Ω
D4
R10
33mΩ
1%
D1
D2
REG15
SRC, CSP
POSINPWM DRNH UVLO
R6
200Ω
1%
C8
0.33µF
D3
L1
4.4µH
C17
150µF
6.3V
C18
150µF
6.3V
C4
0.1µF
5V
10A
SGND
R1
25.5kΩ
1%
R2
8.25kΩ
1%
R5
10Ω
1%
C15
0.1µF
C19
0.15µF
R3
150Ω
1%
U2
FOD2712
E
C
LED
FB
COMP
GND
U1
T1
PWMNEG
C1
220µF
100V
0.68µF
100V
R4
10Ω
Figure 8. MAX5043 Typical Application Circuit (48V Power Supply without Hot-Swap Capability, this Circuit has not been Tested)
Typical Application Circuits (continued)