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NCP1090のメーカーはON Semiconductorです、この部品の機能は「Integrated IEEE 802.3af PoE-PD Interface Controller」です。 |
部品番号 | NCP1090 |
| |
部品説明 | Integrated IEEE 802.3af PoE-PD Interface Controller | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとNCP1090ダウンロード(pdfファイル)リンクがあります。 Total 12 pages
NCP1090, NCP1091,
NCP1092
Integrated IEEE 802.3af
PoE-PD Interface Controller
Description
The NCP1090, NCP1091 and NCP1092 are members of
ON Semiconductor’s high power HIPOt Power over Ethernet
Powered Device (PoE−PD) product family and integrate an IEEE
802.3af PoE−PD interface controller.
The 3 variants all incorporate the required functions as such
detection, classification, under voltage lockout, inrush and operational
current limit. A power good signal has been added to guarantee a good
enabling/disabling of the DC−DC controller. In addition, the
NCP1091 offers a programmable under−voltage while the NCP1092
provide an auxiliary pin for applications supporting auxiliary supplies.
The NCP1090, NCP1091 and NCP1092 are fabricated in a robust
high voltage process and integrates a rugged vertical N−channel
DMOS suitable for the most demanding environments and capable of
withstanding harsh environments such as hot swap and cable ESD
events.
The NCP1090, NCP1091 and NCP1092 complement
ON Semiconductor’s ASSP portfolio in industrial devices and can be
combined with stepper motor drivers, CAN bus drivers and other
high−voltage interfacing devices to offer complete solutions to the
industrial and security market.
Features
• Fully Supports IEEE 802.3af Specifications
• Programmable Classification Current
• Adjustable Under Voltage Lock Out (NCP1091 Only)
• Open−Drain Power Good Indicator
• 130 mA Inrush Current Limit
• 500 mA Operational Current Limit
• Pass Switch Disabling Input for Rear Auxiliary Supply Operation
(NCP1092 Only)
• Over−temperature Protection
• Industrial Temperature Range −40°C to 85°C with Full Operation up
to 125°C Junction Temperature
• 0.5 W Hot−swap Pass−switch
• Vertical N−channel DMOS Pass−switch Offers the Robustness of
Discrete MOSFETs
http://onsemi.com
SOIC−8
S SUFFIX
CASE 751AZ
TSSOP−8
T SUFFIX
CASE 948S
PIN CONFIGURATION
1
INRUSH
VPORTP
CLASS
*
DET
PGOOD
VPORTN
RTN
(Top View)
* NCP1090 = NC
NCP1091 = UVLO
NCP1092 = AUX
8
XXXXX
AYWWG
G
1
XXXXXX = Specific Device Code
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Package
ORDERING INFORMATION
Device
Package
Shipping†
NCP109xxxx
SOIC−8
(Pb−Free)
2500/Tape &
Reel
NCP109xxxx
TSSOP−8
(Pb−Free)
2500/Tape &
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2011
February, 2011 − Rev. 2
1
Publication Order Number:
NCP1090/D
1 Page NCP1090, NCP1091, NCP1092
Simplified Application Diagrams
RJ−45
Data
Pairs
Spare
Pairs
VPORTP
Rdet
DB1 DET
Rclass
CLASS
PGOOD
Rinrush
NCP1090
INRUSH
RTN
DB2 NC
VPORTN
Figure 2. Typical Application Circuit using the NCP1090
To DC−DC
Converter
RJ−45
Data
Pairs
DB1
Spare
Pairs
DB2
Rdet
VPORTP
DET
Rclass
CLASS
PGOOD
Ruvlo1
Ruvlo2
Rinrush
NCP1091
INRUSH
UVLO
RTN
VPORTN
To DC−DC
Converter
Figure 3. Typical Application Circuit using the NCP1091 with External UVLO Setting
http://onsemi.com
3
3Pages NCP1090, NCP1091, NCP1092
Table 3. OPERATING CONDITIONS (All values are with respect to VPORTN unless otherwise noted.)
Symbol
Parameter
Min Typ
Max Units
Conditions
PASS−SWITCH AND CURRENT LIMITING
Ron Pass−switch Rds−on
− 0.5 1 W Measured with I(RTN) =
200 mA
I_inrush
Inrush current with Rinrush = 178 kW
75
120
170 mA Measured at
RTN−VPORTN = 3 V
I_ilim
Operating current limit with Rinrush =
178 kW
425
500
575 mA Current limit threshold
POWER GOOD INDICATOR
Vds_pgood_on
RTN−VPORTN threshold voltage
required for power good status
0.8 1
1.2 V RTN−VPORTN falling
Vds_pgood_off
RTN−VPORTN latchoff threshold
voltage
9 10 11 V RTN−VPORTN rising
Pgood_filter
PGOOD filter time
100 mS Rising and falling /
for information only
Ipgood
I(PGOOD) sinking current
−−
5 mA
Vpgood_low
PGOOD voltage output low
− 0.2 0.5 V Voltage with respect to RTN
CURRENT CONSUMPTION
IvportP
I(VPORTP) internal current
consumption
− 600 900 mA VPORTP = 48 V
THERMAL SHUTDOWN
TSD
Thermal shutdown threshold
150 −
− °C Tj Tj = junction temperature
Thyst
Thermal hysteresis
− 15
− °C Tj Tj = junction temperature
THERMAL RATINGS
Ta Ambient temperature
−40 −
85 °C
Tj Junction temperature
− − 125 °C
3. A tolerance of 1% on the Rclass resistor is included in the min/max values.
http://onsemi.com
6
6 Page | |||
ページ | 合計 : 12 ページ | ||
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PDF ダウンロード | [ NCP1090 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
NCP1090 | Integrated IEEE 802.3af PoE-PD Interface Controller | ON Semiconductor |
NCP1091 | Integrated IEEE 802.3af PoE-PD Interface Controller | ON Semiconductor |
NCP1092 | Integrated IEEE 802.3af PoE-PD Interface Controller | ON Semiconductor |
NCP1093 | Integrated IEEE 802.3at PoE-PD Interface Controller | ON Semiconductor |