MAX5942BCSE Maxim Integrated, MAX5942BCSE Datasheet - Page 2

• Manufacturer Part Number: MAX5942BCSE
• Description: Power Switch ICs - POE / LAN
• Manufacturer: Maxim Integrated

ABSOLUTE MAXIMUM RATINGS
(All voltages are referenced to V
GND........................................................................-0.3V to +90V
OUT, PGOOD ...........................................-0.3V to (GND + 0.3V)
RCL, GATE .............................................................-0.3V to +12V
UVLO ........................................................................-0.3V to +8V
PGOOD to OUT.........................................-0.3V to (GND + 0.3V)
V+ to V-...................................................................-0.3V to +80V
V
V
FB, NDRV, SS_SHDN, CS to V- ..................-0.3V to (V
Maximum Input/Output Current (continuous)
IEEE 802.3af Power-Over-Ethernet
Interface/PWM Controller for Power Devices
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.
ELECTRICAL CHARACTERISTICS
(V
unless otherwise noted. Typical values are at T
2
PD INTERFACE
DETECTION MODE
Input Offset Current
Effective Differential Input
Resistance
CLASSIFICATION MODE
Classification Current Turn-Off
Threshold
Classification Current
POWER MODE
Operating Supply Voltage
Operating Supply Current
Default Power Turn-On Voltage
Default Power Turn-Off Voltage
Default Power Turn-On/Off
Hysteresis
External UVLO Programming
Range
UVLO External Reference Voltage
UVLO External Reference
Voltage Hysteresis
DD
CC
IN
OUT to V
GND, RCL to V
_______________________________________________________________________________________
to V-.................................................................-0.3V to +40V
to V-..............................................................-0.3V to +12.5V
= (GND - V
PARAMETER
EE
...................................................................500mA
EE
EE
) = 48V, GATE =
............................................................70mA
EE
, unless otherwise noted.)
PGOOD = PGOOD = OPEN, V- tied to OUT, V+ tied to GND, UVLO = V
V
V
V
V
SYMBOL
V
HYST,UVLO
REF,UVLO
I
UVLO,OFF
UVLO,ON
OFFSET
TH,CLSS
I
V
HYST
CLASS
IN,EX
V
dR
I
IN
IN
A
= +25°C. All voltages are referenced to V
V
V
OUT = PGOOD = GND (Note 3)
V
V
to 20V, R
= 25.5kΩ
(Notes 5, 6)
V
Measure at GND, not including R
V IN increasing, UVLO = V
V IN decreasing, UVLO = V
Set UVLO externally (Note 7)
V
Ratio to V
IN
IN
IN
IN
IN
UVLO
CC
= 1.4V to 10.1V (Note 2)
= 1.4V up to 10.1V with 1V step,
rising (Note 4)
= 12.6V
= (GND - V
+ 0.3V)
increasing
DISC
REF,UVLO
CONDITIONS
EE
Class 0, R
Class 1, R
Class 2, R
Class 3, R
Class 4, R
)
Continuous Power Dissipation (T
Operating Temperature Ranges
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) ................................+300°C
UVLO, PGOOD, PGOOD to V
GATE to V
V
NDRV Continuous ...........................................................25mA
NDRV (pulsed for less than 1µs) .......................................±1A
16-Pin SO (derate 9.1mW/°C above +70°C)................727mW
MAX5942_CSE...................................................0°C to +70°C
MAX5942_ESE ................................................-40°C to +85°C
DD
, V
EE
CL
CL
CL
CL
CL
EE
CC
= 10kΩ
= 732Ω
= 392Ω
= 255Ω
= 178Ω
.........................................................................20mA
EE
DISC
....................................................................80mA
EE
, unless otherwise noted.) (Note 1)
17.29
26.45
2.400
MIN
20.8
9.17
36.6
37.4
19.2
550
7.4
30
12
0
EE
A
= +70°C)
.....................................20mA
2.460
TYP
21.8
38.6
0.4
20
EE
, T
A
11.83
19.71
29.55
2.522
MAX
22.5
41.4
40.1
20.9
10
67
67
= T
2
1
MIN
to T
UNITS
mA
mA
µA
kΩ
%
V
V
V
V
V
V
V
MAX
,