MAX5986A MAXIM [Maxim Integrated Products], MAX5986A Datasheet - Page 3

• Manufacturer Part Number: MAX5986A
• Description: IEEE 802.3af-Compliant, High-Efficiency, Class 1,Powered Devices with Integrated DC-DC Converter
• Manufacturer: MAXIM [Maxim Integrated Products]

ELECTRICAL CHARACTERISTICS (continued)
(V
C1 = 68nF, C2 = 10µF, C3 = 1µF (see Figure 3), V
otherwise noted. T
Powered Devices with Integrated DC-DC Converter
V
V
Inrush to Operating Mode Delay
Isolation Power MOSFET
On-Resistance
CURRENT LIMIT
Inrush Current Limit
Current Limit During Normal
Operation
WAD Detection Rising Threshold
WAD Detection Falling
Threshold
WAD Detection Hysteresis
WAD Input Current
INTERNAL REGULATOR WITH BACK BIAS
V
V
V
SLEEP MODE (MAX5986A)
WK and ULP Logic Threshold
SL Logic Threshold
SL Current
LED Current Amplitude
LED Current Programmable
Range
LED Current with Grounded SL
LED Current Frequency
LED Current Duty Cycle
DD
DD
DD
AUX
AUX
DRV
IEEE 802.3af-Compliant, High-Efficiency, Class 1,
= 48V, R
Turn-On/Off Hysteresis
Deglitch Time
Input Voltage Range
Input Current
Output Voltage
PARAMETER
SIG
= 24.9kω, LED, V
A
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= T
J
= -40°C to +85°C, unless otherwise noted. Typical values are at T
CC
V
V
V
, SL, ULP, WK, RESET, LDO_OUT unconnected, WAD = LDO_EN = LDO_IN = PGND = GND,
HYST_UVLO
SYMBOL
t
R
WAD_FALL
WAD_RISE
OFF_DLY
I
t
INRUSH
ON_ISO
D
DELAY
V
I
f
I
I
WAD
V
ILED
LED
LIM
AUX
ILED
TH
FB
(Note 6)
V
t
to 0V step to DC-DC converter turn-on
I
During initial turn-on period,
V
After inrush completed,
V
V
Inferred from V
V
V
Falling
V
R
R
R
V
Sleep and ultra-low power modes
Sleep and ultra-low power modes
DELAY
VCC
DD
DD
CC
WAD
AUX
WK
SL
SL
SL
SL
SL
= V
= 0V
= 0V
= 60.4kI, V
= 30.2kI, V
= 30.2kI, V
falling from 40V to 20V (Note 5)
- V
= V
falling and V
= 100mA
AUX
from 4.75V to 14V
= 24V
= time from a (V
CC
DD
= 0V, LX unconnected. All voltages are referenced to GND, unless
= 4V, measured at V
- 1.5V, measured at V
CONDITIONS
AUX
LED
LED
LED
ULP
input current
= 6.5V
= 6.5V
= 3.5V
T
T
MAX5986A/MAX5987A
rising and falling
J
J
DD
= +25NC
= +85NC
MAX5986A
MAX5987A
- V
CC
CC
) 1.5V
CC
A
= +25°C.) (Note 3)
4.75
0.65
0.55
19.2
20.6
MIN
175
3.4
5.8
4.2
1.6
9.2
75
39
10
TYP
62.5
10.6
21.2
21.2
26.4
100
201
125
250
4.2
7.2
1.2
1.5
0.6
90
49
25
MAX
23.5
31.4
110
226
2.2
8.8
3.1
5.5
2.9
0.8
60
14
12
20
UNITS
mA
mA
mA
mA
mA
mA
ms
FA
FA
Hz
Fs
%
I
V
V
V
V
V
V
V
V