High-Power, Quad, PSE Controller
for Power-Over-Ethernet
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(V
AGND
= 32V to 60V, V
EE
= 0V, V
DD
to V
DGND
= +3.3V, all voltages are referenced to V
EE
, unless otherwise noted. Typical values are at
V
AGND
= +48V, V
DGND
= +48V, V
DD
= (V
DGND
+ 3.3V), T
A
= +25癈. Currents are positive when entering the pin and negative other-
wise.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOAD DISCONNECT
DC Load Disconnect
Threshold
V
DCTH
Minimum V
SENSE
allowed before disconnect
(DC disconnect active), V
OUT_
= 0V
2.5
3.75
5.0
mV
AC Load Disconnect
Threshold (Note 6)
I
ACTH
Current into DET_, for I < I
ACTH
the port
powers off, ACD_EN_ bit = H; V
OSC_IN
= 2.2V
300
320
350
礎
Oscillator Buffer Gain
A
OSC
V
DET_
/V
OSC
, ACD_EN_ bit = H
2.9
3.0
3.1
V/V
OSC Fail Threshold (Note 7)
V
OSC_FAIL
Port does not power on if V
OSC
< V
OSC_FAIL
and ACD_EN_ bit is high
1.8
2.2
V
OSC Input Impedance
Z
OSC
OSC input impedance when all the ACD_EN_
are active
100
k?/DIV>
Load Disconnect Timer
t
DISC
Time from V
SENSE
< V
DCTH
to gate shutdown
(Note 8)
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
AGND
- V
OUT
< V
DCP
after the first
detection phase a short circuit to AGND is
detected
1
V
Open-Circuit Threshold
I
D_OPEN
First point measurement current threshold for
open condition
12.5
礎
Resistor Detection Window
R
DOK
(Note 9)
19.0
26.5
k?/DIV>
Detection rejects lower values
15.2
Resistor Rejection Window
R
DBAD
Detection rejects higher values
32
k?/DIV>
CLASSIFICATION
Classification Probe Voltage
V
CL
V
AGND
- V
DET_
during classification
16
20
V
Current-Limit Protection
I
CILIM
DET_ = AGND, during classification, measure
current through DET_
68
81
mA
Class 0, Class 1
5.5
6.5
7.5
Class 1, Class 2
13
14.5
16
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, Class 5
45
48
51
mA
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
MAX5953DUTM+
IC INTERFACE 802.3AF 48TQFN
MAX5954LETX+T
IC PCI EXP/HOT-PLUG CTRLR 36TQFN
MAX5955BEEE+
IC DUAL HOT-SWAP CTRLR 16-QSOP
MAX5957AETN+T
IC TRPL PCI EXP/HOT-PLUG 56-TQFN
MAX5960AECS+T
IC CTRLR HOT-PLUG QD 80-TQFP
MAX5963UTL+T
IC HOT SWAP DIO ORING CTL 40TQFN
MAX5965AEAX+
IC PSE CTRLR FOR POE 36SSOP
MAX5969DETE+T
IC CTRLR INTERFCE W/MOSFT 16TQFN
相关代理商/技术参数
MAX5952CUAX+T
功能描述:热插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MAX5952DEAX+
制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX5952DEAX+T
制造商:Maxim Integrated Products 功能描述:HIGH-POWER QUAD PSE CONTROLLER FOR - Tape and Reel
MAX5952DUAX+
制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX5952DUAX+T
制造商:Maxim Integrated Products 功能描述:HIGH-POWER QUAD PSE CONTROLLER FOR - Tape and Reel
MAX5953AUTM+
功能描述:电压模式 PWM 控制器 IEEE 802.3af PD Int & PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX5953AUTM+T
功能描述:电压模式 PWM 控制器 IEEE 802.3af PD Int & PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX5953BUTM+
功能描述:电压模式 PWM 控制器 IEEE 802.3af PD Int & PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel