MAX5043ETN Maxim Integrated Products, MAX5043ETN Datasheet - Page 15

• Manufacturer Part Number: MAX5043ETN
• Description: Switching Converters, Regulators & Controllers Two-Switch Power IC w/Power MOSFET
• Manufacturer: Maxim Integrated Products

Figure 4. Block Diagram of the MAX5043 Power IC
PWMNEG (29, 31)
PWMNEG (26)
POSINPWM
PWMSD
CSOUT
FLTINT
REG15
RAMP
OPTO
REG5
REG9
RCFF
CSS
DEN
41
39
38
11
35
13
32
25
27
28
3
4
5
6
Power MOSFETs and Hot-Swap Controller
______________________________________________________________________________________
80µA
32µA
7.5V
2.3V/1.6V
MAX5043
840kΩ
35kΩ
REG5 OK
Two-Switch Power ICs with Integrated
5V
5V
UVLO
IFLT
50Ω
3V
CPWM
R
S
PWMNEG
REG5
(5V)
1.125V
1.25V
OVRLD
Q
REG15 OK
Q
CDEN
REG9 OK
"1"
D
R
7.5V
DELAY
10ms
REG9
(9V)
OVT
UVLO
REFOK
REG15OK
REG9OK
REG5OK
OVRLD
PWMNEG
CLK
REG15 OK
3Ω
Q
REG5 OK
GAIN = 10
T-FF
R
R
S
IAMP
REG15
(15V)
REF OK
Q
SHDN
OSC
ILIM
200mV
OVT
(1.25V)
REF
150mV
12°C HYSTERESIS
LEADING-
UVLO
DELAY
EDGE
SHUTDOWN
THERMAL
+150°C
RES
CUVLO
LEADING-
10MHz
DELAY
EDGE
LEVEL
SHIFT
OVT
1.25V
1.125V
SHOT
ONE
0.1Ω
7.5V
QL
1.2MΩ
0.1Ω
10Ω
QH
QB
PWMNEG
50kΩ
47
46
37
36
7
48
49
8
18
16
9
10
12
33
34
POSINPWM
UVLO
PPWM
DRVDEL
BST
DRNH (51, 54, 55)
XFRMRH (50, 52, 53)
DRVIN
XFRMRL (19, 22, 23)
SRC (17, 20, 21, 24)
PWMPNEG
RCOSC
SYNC
CSP
CSN
15