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參數(shù)資料
型號: MAX5953DUTM+
廠商: Maxim Integrated
文件頁數(shù): 5/27頁
文件大小: 371K
描述: IC INTERFACE 802.3AF 48TQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 43
類型: 以太網(wǎng)供電開關(guān)(PoE)
應(yīng)用: 遠程外設(shè)(工業(yè)控制,相機,數(shù)據(jù)訪問)
內(nèi)部開關(guān):
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
_______________________________________________________________________________________   5
ELECTRICAL CHARACTERISTICS (DC-DC Controller) (continued)
(All voltages referenced to GND, unless otherwise noted. V
HVIN
= +48V, C
INBIAS
= 1礔, C
REGOUT
= 2.2礔, R
RTCT
= 25k&, C
RTCT
=
100pF, C
BST
= 0.22礔, V
CSS
= V
CS
= 0V, V
RAMP
= V
DCUVLO
= 3V, T
J
= 0癈 to +125癈, unless otherwise noted. Typical values are at
T
J
= +25癈, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
NIT
SOFT-START (CSS)
Soft-Start Current
I
CSS
V
CSS
 = 0V
33
礎(chǔ)
INTEGRATING FAULT PROTECTION
FLTINT Source Current
I
FLTINT
80
礎(chǔ)
FLTINT Trip Point
V
FLTINT
 rising
2.7
V
FLTINT Hysteresis
0.75
V
INTERNAL POWER FETs
On-Resistance
R
ON POWER
V
DRVIN
 = V
BST
 = 9V,
V
XFRMRH
 = V
SRC
 = 0V, I
DS
 = 50mA
0.4
0.8
&
Off-State Leakage Current
-5
+10
礎(chǔ)
Total Gate Charge Per Power
FET
15
nC
HIGH-SIDE DRIVER
Low to High Latency
t
LH-HS
Driver delay until FET V
GS
 reaches 0.9 x
(V
BST
 - V
XFRMRH
) and is fully on
80
ns
High to Low Latency
t
HL-HS
Driver delay until FET V
GS
 reaches 0.1 x
(V
BST
 - V
XFRMRH
) and is fully off
40
ns
Output Drive Voltage
V
BST
BST to XFRMRH with high side on
8
V
LOW-SIDE DRIVER
Low to High Latency
t
LH-LS
Driver delay until FET V
GS
 reaches 0.9 x
V
DRVIN
 and is fully on
80
ns
High to Low Latency
t
HL-LS
Driver delay until FET V
GS
 reaches 0.1 x
V
DRVIN
 and is fully off
40
ns
CURRENT-LIMIT COMPARATOR (CS)
Current-Limit Threshold
Voltage
V
ILIM
140
156
172
mV
Current-Limit Input Bias
Current
I
BILIM
0 < V
CS
 < 0.3V
-2
+2
礎(chǔ)
Pr
i  n D  l
XFRMRL
t
dILIM
From V
CS
 rising (10mV overdrive) to
V
XFRMRL
 rising
160
ns
BOOST VOLTAGE CIRCUIT (See Figure 9, QB)
Driver Output Delay
t
PPWMD
200
ns
One-Shot Pulse Width
t
PWQB
300
ns
QB R
DSON
Sinking 20mA
30
60
&
THERMAL SHUTDOWN
Shutdown Temperature
T
SH
Temperature rising
+160
Thermal Hysteresis
T
H
20
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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 拓撲結(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 拓撲結(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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
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