參數(shù)資料
型號(hào)： MAX5953DUTM+
廠商： Maxim Integrated
文件頁(yè)數(shù)： 2/27頁(yè)
文件大?。?/td> 371K
描述： IC INTERFACE 802.3AF 48TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 43
類型： 以太網(wǎng)供電開關(guān)（PoE）
應(yīng)用： 遠(yuǎn)程外設(shè)（工業(yè)控制，相機(jī)，數(shù)據(jù)訪問）
內(nèi)部開關(guān)： 是
電源電壓： 11 V ~ 76 V
工作溫度： 0°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 48-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 48-TQFN-EP（7x7）
包裝： 管件
IEEE 802.3af PD Interface and PWM Controllers
with Integrated Power MOSFETs
2  _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= (V+ - V
EE
) = 48V, GATE = PGOOD = PGOOD = unconnected, GND = OUT, HVIN = V+, UVLO = V
EE
, T
J
= 0癈 to +125癈, unless
otherwise noted. Typical values are at T
J
= +25癈. All voltages are referenced to V
EE
, unless otherwise noted.) (Note 1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V+ to V
EE
................................................................-0.3V to +90V
OUT, PGOOD, PGOOD to V
EE
.....................-0.3V to (V+ + 0.3V)
RCLASS, GATE to V
EE
...........................................-0.3V to +12V
UVLO to V
EE
............................................................ -0.3V to +8V
PGOOD to OUT........................................... -0.3V to (V+ + 0.3V)
HVIN, INBIAS, DRNH, XFRMRH,
XFRMRL to GND.................................................-0.3V to +80V
BST to GND........................................................... -0.3V to +95V
BST to XFRMRH .................................................... -0.3V to +12V
PGND to GND .......................................................-0.3V to +0.3V
DCUVLO, RAMP, CSS, OPTO, FLTINT, RCFF,
RTCT to GND..................................................... -0.3V to +12V
SRC, CS to GND...................................................... -0.3V to +6V
REGOUT, DRVIN to GND.......................................-0.3V to +12V
REGOUT to HVIN .................................................. -80V to +0.3V
REGOUT to INBIAS ............................................... -80V to +0.3V
PPWM to GND....................................-0.3V to (V
REGOUT
+ 0.3V)
Maximum Input/Output Current (Continuous)
OUT to V
EE
....................................................................500mA
V+, RCLASS to V
EE
.........................................................70mA
UVLO, PGOOD, PGOOD to V
EE
.....................................20mA
GATE to V
EE
....................................................................80mA
REGOUT to GND ............................................................50mA
DRNH, XFRMRH, XFRMRL, SRC to GND (Average),
T
J
= +125癈..................................................................0.9A
PPWM to GND ..............................................................?0mA
Continuous Power Dissipation* (T
A
= +70癈)
48-Pin TQFN 7mm X 7mm
(derate 27.8mW/癈 above +70癈).............................2222mW
?/DIV>
JA
................................................................................36癈/W
Operating Ambient Temperature Range ................0癈 to +85癈
Operating Junction Temperature Range..............0癈 to +125癈
Junction Temperature......................................................+150癈
Storage Temperature Range.............................-60癈 to +150癈
Lead Temperature (soldering, 10s).................................+300癈
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
NIT
POWERED DEVICE (PD) INTERFACE
DETECTION MODE
Input Offset Current
I
OFFSET
V
IN
 = 1.4V to 10.1V (Note 2)
10
礎(chǔ)
Effective Differential Input
Resistance (Note 3)
dR
V
IN
 = 1.4V, up to 10.1V with 1V step
550
k&
CLASSIFICATION MODE
Classification Current Turn-Off
Threshold
V
TH CLASS
V
IN
 rising (Note 4)
20.8
21.8
22.5
V
Class 0, R
RCLASS
 = 10k&
0
2
Class 1, R
RCLASS
 = 732&
9.17
11.83
Class 2, R
RCLASS
 = 392&
17.29
19.71
Class 3, R
RCLASS
 = 255&
26.45
29.55
Classification Current
I
CLASS
V
IN
 = 12.6V
to 20V,
R
DISC
 =
25.5k&
(Notes 5, 6)
Class 4, R
RCLASS
 = 178&
36.6
41.4
mA
POWER MODE
Operating Supply Voltage
V
IN
V
IN
 = (V+ - V
EE
)
67
V
Operating Supply Current
I
IN
Measure at V+, not including R
DISC
,
GATE = V
EE
, HVIN = GND = OUT
0.4
1
mA
MAX5953A/MAX5953C
37.4
38.6
40.2
Default Power Turn-On Voltage
V
UVLO ON
V
IN
increasing
MAX5953B/MAX5953D
34.3
35.4
36.9
V
Default Power Turn-Off Voltage
V
UVLO OFF
V
IN
 decreasing, MAX5953A/MAX5953C
30
V
*As per JEDEC 51 standard.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5953DUTM+ 功能描述:電壓模式 PWM 控制器 IEEE 802.3af PD Int & PWM Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX5953DUTM+T 功能描述:電壓模式 PWM 控制器 IEEE 802.3af PD Int & PWM Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX5954AETX+ 功能描述:熱插拔功率分布 Single PCIe Hot Plug 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
MAX5954AETX+T 功能描述:熱插拔功率分布 Single PCIe Hot Plug 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
MAX5954LETX+ 功能描述:熱插拔功率分布 Single PCIe Hot Plug 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
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