參數(shù)資料
型號(hào)： MAX5971AETI+
廠商： Maxim Integrated
文件頁(yè)數(shù)： 4/22頁(yè)
文件大?。?/td> 2126K
描述： IC CTRLR PD IEEE 802.3AF 28WQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 60
類型： 以太網(wǎng)供電控制器 PD 開(kāi)關(guān)（PoE）
應(yīng)用： 供電設(shè)備（PSE）
內(nèi)部開(kāi)關(guān)： 是
電流限制： 可調(diào)
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： 28-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 28-TQFN-EP（5x5）
包裝： 管件
4 ______________________________________________________________________________________
Single-Port, 40W, IEEE 802.3af/802.3at PSE
Controller with Integrated MOSFET
ELECTRICAL CHARACTERISTICS (continued)
(V
AGND
 - V
EE
 = 32V to 60V, T
A
 = -40NC to +85NC, all voltages are referenced to V
EE
, unless otherwise noted. Typical values are at
V
AGND
 - V
EE
 = +54V, T
A
 = +25NC. Currents are positive when entering the pin and negative otherwise.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Triangular Wave Peak-to-Peak
Voltage Amplitude
AMP
TRW
Measured at DET, referred to AGND
3.85
4
4.2
V
OSC Pullup/Pulldown Currents
I
OSC
Measured at OSC
26
32
39
FA
ACD_EN Threshold
V
ACD_EN
V
OSC
 - V
EE
 > V
ACD_EN
 to activate AC
disconnect
270
330
380
mV
Load Disconnect Timer
t
DISC
Time from I
RSENSE
 < I
DCTH
 (DC discon-
nect active) or I
DET
 < I
ACTH
 (AC discon-
nect active) to gate shutdown
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 detec-
tion phase
9
9.3
9.6
V
Current-Limit Protection
I
DLIM
V
DET
 = V
AGND
 during detection, measure
current through DET
1.50
1.75
2.00
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
20
FA
Resistor Detection Window
R
DOK
(Note 4)
19
26.5
kI
Resistor Rejection Window
R
DBAD
Detection rejects lower values
15.5
kI
Detection rejects higher values
32
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 mea-
sure current through DET
65
80
mA
Classification Current
Thresholds
I
CL
Classification
current
thresholds
between
classes
Class 0, Class 1
5.5
6.5
7.5
mA
Class 1, Class 2
13.0
14.5
16.0
Class 2, Class 3
21
23
25
Class 3, Class 4
31
33
35
Class 4 upper limit (Note 5)
45
48
51
Mark Event Voltage
V
MARK
V
AGND
 - V
DET
 during mark event
8
10
V
Mark Event Current Limit
I
MARK_LIM
V
DET
 = V
AGND
, during mark event mea-
sure current through DET
55
80
mA
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MAX5971AETI+T 功能描述:熱插拔功率分布 IEEE 802.3af/at PSE 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
MAX5971AETI+W 制造商:Maxim Integrated Products 功能描述:IEEE802.3 AT PSE SWITCH - Rail/Tube
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