參數(shù)資料
型號: MAX5935EAX+
廠商: Maxim Integrated
文件頁數(shù): 4/44頁
文件大?。?/td> 700K
描述: IC CTRLR POWER QUAD 36-SSOP
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 30
類型: 以太網供電控制器(PoE)
應用: 遠程外設(工業(yè)控制,相機,數(shù)據(jù)訪問)
內部開關:
電源電壓: -32 V ~ -60 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 36-BSOP(0.295",7.50mm 寬)
供應商設備封裝: 36-SSOP
包裝: 管件
Quad Network Power Controller
for Power-Over-LAN
4  _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(AGND = +48V. V
EE
= 0V, V
DD
to DGND = +3.3V. All voltages are referenced to V
EE
, unless otherwise noted. Typical
values are at AGND = +48V, DGND = +48V, V
DD
= (DGND + 3.3V), T
A
= +25癈. Currents are positive when entering the pin and
negative otherwise.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
NIT
AC Load Disconnect
Threshold (Note 4)
I
ACTH
Current into DET_, ACD_EN_ bit = high,
OSC_IN = 2.2V
300
325
350
Oscillator Buffer Gain
A
OSC
V
DET_
/V
OSC_IN
, ACD_EN_ bit = high,
C
DET
 = 400nF
2.90
2.93
3.1
V  V
OSC_IN Fail Threshold
(Note 5)
V
OS
C _F AI L
Port will not power on if V
OSC_IN
 < V
OSC_FAIL
 and
ACD_EN_ bit = high
1.8
1.9
2.2
V
OSC_IN Input Resistance
Z
OSC
OSC_IN input impedance when all the ACD_EN_
are active
100
k&
OSC_IN Input Capacitance
C
OSC_IN
5
pF
Load Disconnect Timer
t
DISC
Time from V
SENSE
 < V
DCTH
 or current into DET_
< I
ACTH
 to gate shutdown (Note 6)
300
400
ms
DETECTION
Detection Probe Voltage
(First Phase)
V
DPH1
V
AGND
 - V
DET_
 during the first detection phase
3.8
4
4.2
V
Detection Probe Voltage
(Second Phase)
V
DPH2
V
AGND
 - V
DET_
 during the second detection
phase
9.0
9.3
9.6
V
Current-Limit Protection
I
DLIM
V
DET_
 = V
AGND
, during detection, measure
current through DET_
1.5
1.75
2.0
mA
Short-Circuit Threshold
V
DCP
If V
A GN D
 -
 V
OU T
 <
 V
D C P
 after the fi r
st d etecti on
p hase a shor t ci r cui t to AG N
D i s d etected
1.62
V
Open-Circuit Threshold
I
D_OPEN
First point measurement current threshold for
open condition
12.5
Resistor Detection Window
R
DOK
(Note 7)
19.0
26.5
k&
Detection rejects lower values
15.2
Resistor Rejection Window
R
DBAD
Detection rejects higher values
32
k&
CLASSIFICATION
Classification Probe Voltage
V
CL
V
AGND
 - V
DET_
 during classification
16
20
V
Current-Limit Protection
I
ClLIM
V
DET_
 = V
AGND
, during classification,
measure current through DET_
50
75
mA
Class 0, Class 1
5.5
6.5
7.5
Class 1, Class 2
13.0
14.5
16.0
Class 2, Class 3
21
23
25
Class 3, Class 4
31
33
35
Classification Current
Thresholds
I
CL
Classification current
thresholds between
classes
>Class 4
45
48
51
mA
DIGITAL INPUTS/OUTPUTS (REFERRED to DGND)
Digital Input Low
V
IL
0.9
V
Digital Input High
V
IH
2.4
V
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