參數(shù)資料
型號(hào)： MAX5945CAX
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： Quad Network Power Controller for Power-Over-LAN
中文描述： 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO36
封裝： 0.80 MM PICTH, SSOP-36
文件頁數(shù)： 4/44頁
文件大小： 572K
代理商： MAX5945CAX
M
Quad Network Power Controller
for Power-Over-LAN
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(AGND = +32V to +60V, 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°C. Currents are positive when entering the pin and
negative otherwise.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
AC Load Disconnect
Threshold (Note 4)
I
ACTH
Current into DET_, ACD_EN_ bit = high,
OSC_IN = 2.2V
300
325
350
μA
Oscillator Buffer Gain
A
OSC
V
DET_
/ V
OSC_IN
, ACD_EN_ bit = high,
C
DET
= 400nF
Port will not power on if V
OSC_IN
< V
OSC_FAIL
and
ACD_EN_ bit = high
2.92
2.98
3.04
V/V
OSC_IN Fail Threshold
(Note 5)
V
OS C _F AI L
1.8
1.9
2.1
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 st d etecti on
p hase a shor ci cui 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
μA
Resistor Detection Window
R
DOK
(Note 7)
Detection rejects lower values
Detection rejects higher values
18.6
26.5
16
k
Resistor Rejection Window
R
DBAD
30
k
CLASSIFICATION
Classification Probe Voltage
V
CL
V
AGND
- V
DET_
during classification
V
DET_
= V
AGND
, during classification,
measure current through DET_
16
20
V
Current-Limit Protection
I
ClLIM
50
75
mA
Class 0, class 1
Class 1, class 2
Class 2, class 3
Class 3, class 4
>Class 4
5.5
13.5
21.5
31
45
6.5
14.5
23
33
48
7.5
15.5
24.5
35
51
Classification Current
Thresholds
I
CL
Classification current
thresholds between
classes
mA
DIGITAL INPUTS/OUTPUTS (REFERRED to DGND)
Digital Input Low
Digital Input High
V
IL
V
IH
0.9
V
V
2.4
相關(guān)PDF資料
PDF描述
MAX5945EAX Quad Network Power Controller for Power-Over-LAN
MAX5948 AND-OR-invert Gates 14-CFP -55 to 125
MAX5948A -48V Hot-Swap Controllers with External RSENSE
MAX5948AESA -48V Hot-Swap Controllers with External RSENSE
MAX5948B 4-2-3-2 Input AND-OR-invert Gates 14-CDIP -55 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5945CAX+ 功能描述:熱插拔功率分布 IEEE 802.3af Quad Net Pwr Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5945CAX+T 功能描述:熱插拔功率分布 IEEE 802.3af Quad Net Pwr Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5945CAX-T 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5945EAX 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5945EAX+ 功能描述:熱插拔功率分布 IEEE 802.3af Quad Net Pwr Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*