Rainbow Electronics MAX5074 - Manual (Page 12)

MAX5074
Chip Information
TRANSISTOR COUNT: 7043
PROCESS: BiCMOS
Power IC with Integrated MOSFETs for Isolated IEEE
802.3af PD and Telecom Power-Supply Applications
12 ______________________________________________________________________________________
RTCT
SRC
CSS
GND
OPTO
PGND
CS
BST
XFRMRH XFRMRL
INBIAS
MAX5074
UVLO FLTINT DRVIN REGOUT RCFF RAMP
HVIN
DRNH
PPWM
R25 R24
R13
C12 C13
C9 R12
C1
U1
PGND
VIN+
R21
R15
C14
C11
R22
C20
R23
R10
PGND
C7
C8 R6
C6
D1
D2
D3
R9
T1
C15
U2
FOD2712
E C
LED
FB
COMP
GND
C19
R3
R1 R2
D4
C17
C11
SGND V OUT
Figure 4. For lower power applications, the MAX5074 can be used in a flyback converter configuration. This eliminates the need for
an output inductor and simplifies the design of multiple output power supplies.