MAX5042ATN ............................................... -40°C to +125°C
MAX5043ETN ................................................. -40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s)
................................. +300°C
Package Thermal Characteristics (Note 1)
TQFN
Junction-to-Ambient Thermal Resistance (θ
JA
) ..........21°C/W
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Absolute Maximum Ratings Diagram
12V
POSINHS,
POSINPWM
BST
XFRMRH, DRNH
XFRMRL
REG15
80V
80V
80V
40V
12V
6V
4V
REG9, UVLO, RAMP, CSS, FLTINT,
CSOUT, RCFF, RCOSC, DRVIN
REG5, OPTO, PWMSD, SYNC, CSP,
CSN, DRVDEL, SRC, PPWM
DEN
PWMNEG,
PWMPNEG,
HSDRAIN,
HSOK
HSGATE
HSEN
IC SUBSTRATE, NEGIN
80V
95V
80V
80V
12V
4V
www.maximintegrated.com
Maxim Integrated
│
2
MAX5042/MAX5043
Two-Switch Power ICs with Integrated
Power MOSFETs and Hot-Swap Controller
Electrical Characteristics
(V
POSINPWM
= 20V to 76V, V
REG15
= 18V, C
REG15
= 4.7µF, C
REG9
= 1µF, C
REG5
= 1µF, R
RCOSC
= 24kΩ, C
RCOSC
= 100pF, C
BST
= 0.22µF, R
DRVDEL
= 10kΩ, C
DRVDEL
= 0.22µF, V
CSS
= V
CSP
= V
CSN
= V
RAMP
= V
PWMNEG
= V
NEGIN
= 0, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at V
POSINPWM
= 48V, T
A
= +25°C, unless otherwise noted. All voltages are referred to
PWMNEG, unless otherwise noted.)
PARAMETER
Input Supply Range
REG15 REGULATOR
REG15 Output Voltage Range
REG15 Output Voltage Load
Regulation
REG15 Output Current
REG15 Current Limit
REG15 Overdrive Voltage
REG9 REGULATOR
REG9 Output Voltage Range
REG9 Output Voltage Load
Regulation
REG9 Output Current
REG9 Current Limit
REG5 REGULATOR
REG5 Output Voltage Range
REG5 Output Voltage Load
Regulation
REG5 Output Current
REG5 Current Limit
PWM COMPARATOR
Common-Mode Range
Input Offset Voltage
Input Bias Current
Propagation Delay
RCOSC OSCILLATOR
PWM Period
Maximum Duty Cycle
Maximum RCOSC Frequency
RCOSC Peak Trip Level
RCOSC Valley Trip Level
RCOSC Input Bias Current
RCOSC Discharge MOSFET
RDS(ON)
RCOSC Discharge Pulse Width
SYNC High Level
SYNC Low Level
3.5
0.8
Sinking 10mA
f
RCOSC
V
TH
t
OSC-PWM
3.9
47
1.2
2.55
0.2
-0.3
60
50
120
µs
%
MHz
V
V
µA
Ω
ns
V
V
50mV overdrive, 0 ≤ V
CM-PWM
≤ 5.5V
-2.5
70
V
CM-PWM
0
10
+2.5
5.5
V
mV
µA
ns
V
REG15
= 18V to 40V
I
REG5
= 0 to 20mA
Inferred from load regulation test
REG5 shorted to PWMNEG with 10Ω
40
4.5
5.5
0.35
20
V
V
mA
mA
V
REG15
= 18V to 40V
I
REG9
= 0 to 40mA
Inferred from load regulation test
REG9 shorted to PWMNEG with 10Ω
100
8.3
10.1
0.35
40
V
V
mA
mA
V
REG15
V
POSINPWM
= 20V to 76V
V
POSINPWM
= 20V,
I
REG15
= 0 to 80mA
Inferred from load regulation test
REG15 shorted to PWMNEG with 10Ω
18
140
40
13.0
16.6
1.5
80
V
V
mA
mA
V
SYMBOL
V
POSINPWM
CONDITIONS
MIN
20
TYP
MAX
76
UNITS
V
www.maximintegrated.com
Maxim Integrated
│
3
MAX5042/MAX5043
Two-Switch Power ICs with Integrated
Power MOSFETs and Hot-Swap Controller
Electrical Characteristics (continued)
(V
POSINPWM
= 20V to 76V, V
REG15
= 18V, C
REG15
= 4.7µF, C
REG9
= 1µF, C
REG5
= 1µF, R
RCOSC
= 24kΩ, C
RCOSC
= 100pF, C
BST
= 0.22µF, R
DRVDEL
= 10kΩ, C
DRVDEL
= 0.22µF, V
CSS
= V
CSP
= V
CSN
= V
RAMP
= V
PWMNEG
= V
NEGIN
= 0, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at V
POSINPWM
= 48V, T
A
= +25°C, unless otherwise noted. All voltages are referred to
PWMNEG, unless otherwise noted.)
PARAMETER
SYNC Leakage Current
SYNC Maximum Frequency
SYNC On-Time
SYNC Off-Time
PWM LOGIC
PWM Comparator Propagation
Delay
PPWM to XFRMRL Delay
DRVDEL Reference Voltage
PPWM Output High
PPWM Output Low
PWMSD
Logic High
PWMSD
Logic Low
PWMSD
Leakage Current
SOFT-START
Soft-Start Current
Minimum OPTO Voltage
RAMP GENERATOR
Minimum RCFF Voltage
RCFF Leakage
OVERLOAD FAULT
FLTINT Pulse Current
FLTINT Trip Point
FLTINT Hysteresis
INTERNAL POWER FETs
On-Resistance
Off-State Leakage Current
Total Gate Charge Per FET
HIGH-SIDE DRIVER
Low-to-High Latency
High-to-Low Latency
Output Drive Voltage
LOW-SIDE DRIVER
Low-to-High Latency
Driver delay until FET V
GS
reaches
0.9 x V
DRVIN
80
ns
Driver delay until FET V
GS
reaches 0.9 x
(V
BST
- V
XFRMRH
)
Driver delay until FET V
GS
reaches 0.1 x
(V
BST
- V
XFRMRH
)
BST to XFRMRH with high side on
80
45
8
ns
ns
V
Inferred from supply current with
V
DS
= 50V
45
R
DSON
V
DRVIN
= V
BST
= 9V,
V
XFRMRH
= V
SRC
= 0, I
DS
= 190mA
75
200
10
mΩ
µA
nC
I
FLTINT
2.0
80
2.7
0.75
3.5
µA
V
V
RCFF sinking 2mA
2.1
±0.1
±1
V
µA
I
CSS
CSS = 0, sinking 2mA
33
1.4
Sourcing 2mA
Sinking 2mA
3.5
0.8
±1
PPWM rising
1.14
2.8
0.4
70
120
1.38
ns
ns
V
V
V
V
V
µA
µA
V
f
SYNC
50
200
2.4
SYMBOL
CONDITIONS
MIN
TYP
MAX
±1
UNITS
µA
MHz
ns
ns
www.maximintegrated.com
Maxim Integrated
│
4
MAX5042/MAX5043
Two-Switch Power ICs with Integrated
Power MOSFETs and Hot-Swap Controller
Electrical Characteristics (continued)
(V
POSINPWM
= 20V to 76V, V
REG15
= 18V, C
REG15
= 4.7µF, C
REG9
= 1µF, C
REG5
= 1µF, R
RCOSC
= 24kΩ, C
RCOSC
= 100pF, C
BST
= 0.22µF, R
DRVDEL
= 10kΩ, C
DRVDEL
= 0.22µF, V
CSS
= V
CSP
= V
CSN
= V
RAMP
= V
PWMNEG
= V
NEGIN
= 0, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at V
POSINPWM
= 48V, T
A
= +25°C, unless otherwise noted. All voltages are referred to
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