參數(shù)資料
型號： NCP1081DEG
廠商： ON Semiconductor
文件頁數(shù)： 7/18頁
文件大?。?/td> 257K
描述： IC CONV CTLR POE-PD 40W 20-TSSOP
標(biāo)準(zhǔn)包裝： 74
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，數(shù)據(jù)訪問）
內(nèi)部開關(guān)： 是
電流限制： 1.1A
電源電壓： 0 V ~ 57 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 20-TSSOP（0.173"，4.40mm 寬）裸露焊盤
供應(yīng)商設(shè)備封裝： 20-TSSOP-EP
包裝： 管件
NCP1081
http://onsemi.com
7
Recommended Operating Conditions
Operating conditions define the limits for functional operation and parametric characteristics of the device. Note that the
functionality of the device outside the operating conditions described in this section is not warranted. Operating outside the
recommended operating conditions for extended periods of time may affect device reliability.
All values concerning the DCDC controller, VDDH, VDDL, and nCLASS_AT blocks are with respect to ARTN. All others
are with respect to VPORTN
1,2
 (unless otherwise noted).
Table 3. OPERATING CONDITIONS
Symbol
Parameter
Min.
Typ.
Max.
Units
Conditions
INPUT SUPPLY
VPORT
Input supply voltage
0
57
V
VPORT = VPORTP 
VPORTN
1,2
SIGNATURE DETECTION
Vsignature
Input supply voltage signature detection
range
1.4
9.5
V
Rsignature
Signature resistance (Note 4)
23.75
26.25
kW
Offset_current
I_VportP + I_Rtn

1.8
5
mA
VPORTP = RTN = 1.4 V
Sleep_current
I_VportP + I_Rtn

15
25
mA
VPORTP = RTN = 9.5 V
CLASSIFICATION
Vcl
Input supply voltage classification range
13
20.5
V
V_mark
Mark event voltage range
(VPORTP falling)
5.4

9.7
V
I_mark
Current consumption I(VPORTP) +
I(Rdet) in Mark Event range
0.5

2.0
mA
5.4 V d VPORT d 9.5 V
dR_mark
Input signature during Mark Event (Note 7)


12
kW
For information only
Vreset
Classification Reset range
(VPORTP falling)
4.3
4.9
5.4
V
Iclass0
Class 0: Rclass 10 kW (Note 6)
0

4
mA
Iclass0 = I_VportP + I_Rdet
Iclass1
Class 1: Rclass 130 W (Note 6)
9

12
mA
Iclass1 = I_VportP + I_Rdet
Iclass2
Class 2: Rclass 69.8 W (Note 6)
17

20
mA
Iclass2 = I_VportP + I_Rdet
Iclass3
Class 3: Rclass 44.2 W (Note 6)
26

30
mA
Iclass3 = I_VportP + I_Rdet
Iclass4
Class 4: Rclass 30.9 W (Note 6)
36

44
mA
Iclass4 = I_VportP + I_Rdet
Iclass5
Class 5: Rclass 22.1 W (Notes 5 and 6)
(for proprietary high power applications)
50

60
mA
Iclass5 = I_VportP + I_Rdet
IDC
class
Internal current consumption during classi-
fication (Note 8)

600

mA
For information only
CLASSIFICATION INDICATOR
nCLASS_AT_i
nCLASS_AT current source
13
20
27
mA
NCLASS_AT_pd
R
DS,ON
 of NCLASS_AT pull down
transistor
130
W
For information only
4.  Test done according to the IEEE802.3af 2 Point Measurement. The minimum probe voltages measured at the PoEPD are 1.4 V and 2.4 V,
and the maximum probe voltages are 8.5 V and 9.5 V.
5.  This extended classification range can be used with a PSE which also uses this classification range to deliver more current than specified
by IEEE802.3.
6.  Measured with an external Rdet of 25.5 kW between VPORTP and VPORTN
1,2
, and for 13 V < VPORT < 20.5 V (with VPORT = VPORTP
 VPORTN
1,2
). Resistors are assumed to have 1% accuracy.
7.  Measured with the 2 Point Measurement defined in the IEEE802.3af standard with 5.4 V and 9.5 V the extreme values for V2 and V1.
8.  This typical current excludes the current in the Rclass and Rdet external resistors.
相關(guān)PDF資料
PDF描述
NCP1082DEG IC CONV CTLR POE-PD 13W 20-TSSOP
NCP1083DEG IC CONV CTLR POE-PD 40W 20-TSSOP
NCP1501DMR2G IC REG SGL BUCK/LINEAR 8MICRO
NCP1578MNR2G IC REG DL BCK/LINEAR SYNC 20-QFN
NCP1601BDR2G IC PFC CTRL CRM/TRANSITION 8SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCP1081DER2G 功能描述:DC/DC 開關(guān)控制器 POE-PD 40W DC-DC RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
NCP1081SPCGEVB 功能描述:電源管理IC開發(fā)工具 HPOWER POE-PD SPLITTER RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
NCP1082 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Integrated PoE-PD & DC-DC Converter Controller with 9V Auxiliary Supply Support
NCP1082DEG 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 POE-PD 13W DC-DC AUX SUPP RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
NCP1082DER2G 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 POE-PD 13W DC-DC AUX SUPP RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
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，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*