MAX5952 MAXIM [Maxim Integrated Products], MAX5952 Datasheet - Page 4

• Manufacturer Part Number: MAX5952
• Description: High-Power, Quad, PSE Controller for Power-Over-Ethernet
• Manufacturer: MAXIM [Maxim Integrated Products]

ELECTRICAL CHARACTERISTICS (continued)
(AGND = 32V to 60V, V
AGND = +48V, DGND = +48V, V
(Note 2)
High-Power, Quad, PSE Controller
for Power-Over-Ethernet
4
SUPPLY MONITORS
V
V
Hysteresis
V
V
Hysteresis
V
V
V
V
V
Hysteresis
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
OUTPUT MONITOR
OUT_ Input Current
Idle Pullup Current at OUT_
PGOOD High Threshold
PGOOD Hysteresis
PGOOD Low-to-High Glitch
Filter
EE
EE
EE
EE
EE
DD
DD
DD
DD
_______________________________________________________________________________________
Undervoltage Lockout
Undervoltage Lockout
Overvoltage Lockout
Overvoltage Lockout
Undervoltage
Overvoltage
Undervoltage
Undervoltage Lockout
Undervoltage Lockout
PARAMETER
EE
= 0V, V
DD
DD
V
SYMBOL
V
V
= (DGND + 3.3V), T
V
V
V
t
EEUVLOH
V
V
to DGND = +3.3V, all voltages are referenced to V
T
PG
DDUVLO
PGOOD
EEUVLO
I
V
PG
DDHYS
T
DD_OV
DD_UV
EE_OV
EE_UV
BOUT
SHDH
I
OVH
SHD
DIS
HYS
TH
AGND - V
P or ts shut d ow n i f AGN D - V
V
V
AGND - V
V
V
V
V
V
V
> V
Device operates when V
V
Ports shut down and device resets if its
junction temperature exceeds this limit,
temperature increasing (Note 4)
Thermal hysteresis, temperature decreasing
(Note 5)
V
OUT_ discharge current, detection and
classification off, port shutdown,
V
V
Minimum time PGOOD has to be high to set
bit in register 10h
E E U V L OH
EE_OV
E E _ U V
E E
DD_OV
DD
DD
DD_OV
DDUVLO
OUT
OUT_
OUT_
DD_UV
i ncr easi ng
- V
increasing
= AGND, all modes
= AGND - 2.8V
- V
DGND
A
event b i t i s set i f AGN D - V
event bit sets and ports shut down if
event bit is set if
is set if V
, V
= +25°C. Currents are positive when entering the pin and negative otherwise.)
EE
EE
EE
, V
DD
, OUT_ decreasing
, AGND - V
DD
> V
> V
increasing
decreasing
EE_OV
CONDITIONS
DD_OV
DD
- V
, AGND increasing
EE
DGND
;
DD
increasing
E E
- DGND >
< V
MAX5952A
MAX5952C
MAX5952A
MAX5952C
E E
U V L O
< V
EE
-
E E _ U V
, unless otherwise noted. Typical values are at
,
MIN
200
1.5
TYP
28.5
62.5
3.82
120
150
220
5.7
2.7
4.2
2.0
40
20
3
1
2
3
MAX
260
2.5
2
UNITS
mV
mV
ms
µA
µA
°C
°C
V
V
V
V
V
V
V
V
V