NCP1095 Controller Datasheet

NCP1095 Datasheet, PDF, Equivalent


Part Number

NCP1095

Description

PoE-PD Interface Controller

Manufacture

ON Semiconductor

Total Page 17 Pages
Datasheet
Download NCP1095 Datasheet


NCP1095
NCP1095
PoE-PD Interface
Controller, IEEE 802.3bt
Description
The NCP1095 is a member of the ON Semiconductor Power over
Ethernet Powered Device (PoEPD) product family, and allows the
device containing the NCP1095 based PD to become an IEEE
802.3af/at and 3bt compliant powered equipment.
It incorporates all the required functions for operation within a PoE
system such as detection, classification and current limiting during the
inrush phase. The NCP1095 supports high-power applications (up to
90 W PoE) through an external pass transistor. A power good pin
guarantees proper disabling/enabling of the adjacent main DC/DC
converter. The classification result pins allow for operation according
to the assigned power Class (up to Class 8).
The NCP1095 also offers Autoclass support and indicates when
a short Maintain Power Signature can be implemented. In addition an
auxiliary supply detection pin allows NCP1095 to be used in
applications where power can be supplied by either PoE or by a wall
adapter.
Features
Fully Supports IEEE 802.3af/at and 3bt Specifications
Supports Up to 5-Event Physical Layer Classification
Assigned Power Level Up to 90 W
Supports Autoclass
110 mA Typical Inrush Current Limiting
Open Drain Power Good Indicator
Support for Short MPS
Pass Switch Disabling Input for Rear Auxiliary Supply Operation
Proprietary 100 W+ Applications
Over Current Protection
Over Temperature Protection
Junction Temperature Range of 40°C to +125°C
Available in 16-pin TSSOP
These Devices are PbFree and are RoHS Compliant
www.onsemi.com
RELATED STANDARDS
IEEE 802.3bt2018
16
1
TSSOP16
CASE 948F
MARKING DIAGRAM
16
NCP1095
AL
YYWW
1
NCP1095
A
L
YY
WW
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
NCP1095DBR2
Package
TSSOP16
(PbFree)
Shipping
2500 /
Tape & Reel
NCP1095DB
TSSOP16
(PbFree)
96 / Tube
†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, 2018
June, 2019 Rev. 0
1
Publication Order Number:
NCP1095/D

NCP1095
NCP1095
VPP 1
CLA 2
CLB 3
AUX 4
COSC 5
ACS 6
DET 7
VPN 8
NCP1095
16 NCL
15 NCM
14 PGO
13 LCF
12 RTN
11 GBR
10 PGATE
9 PSNS
Figure 1. Pin-out NCP1095 in 16-pin TSSOP (Top View)
PIN DESCRIPTION
Signal Name
Pin No.
VPP
1
CLA
CLB
AUX
COSC
2
3
4
5
ACS
6
DET
7
VPN
PSNS
8
9
PGATE
GBR
RTN
LCF
PGO
10
11
12
13
14
NCM
NCL
15
16
Type
Power
Output
Output
Input
Analog
Input
Output
Power,
Ground
Input
Output
Output,
Open Drain
Power
Output,
Open Drain
Output,
Open Drain
Output,
Open Drain
Output,
Open Drain
Description
Positive input power.
Connect to the positive terminal of the rectifier bridge
Connect a class signature programming resistor to VPN.
See classification section for recommended values
Auxiliary supply detection input. Referenced to VPN
Connect a 1 nF capacitor between COSC and VPN.
This pin is pulled to VPP during the detection phase
Autoclass enable/disable input.
Pull to VPN to disable Autoclass; leave floating to enable Autoclass
Connect a 26.1 kW detection resistor between DET and COSC.
This pin is pulled to VPN during the detection phase
Negative input power.
Connect to the negative terminal of the rectifier bridge
Positive current sense line.
Connect to the positive side of the external sense resistor
(and the source of the external pass transistor)
Gate driver for the external pass transistor
Control output to disable the active rectifier bridge.
This pin is referenced to VPN
DC/DC controller power return. Connect to the drain of the external pass
transistor
Long Classification Finger Indicator. This pin is referenced to RTN.
Connect with a pull-up resistor to the logic supply
Power Good Indicator. This pin is left floating when the power good signal is
active. Referenced to RTN. Must be used to enable/disable the main DC/DC
converter adjacent to NCP1095.
Class result MSB output. This pin is referenced to RTN.
Connect with a pull-up resistor to the logic supply
Class result LSB output. This pin is referenced to RTN.
Connect with a pull-up resistor to the logic supply
www.onsemi.com
2


Features NCP1095 PoE-PD Interface Controller, IE EE 802.3bt Description The NCP1095 is a member of the ON Semiconductor Power o ver Ethernet Powered Device (PoE−PD) product family, and allows the device c ontaining the NCP1095 based PD to becom e an IEEE 802.3af/at and −3bt complia nt powered equipment. It incorporates a ll the required functions for operation within a PoE system such as detection, classification and current limiting du ring the inrush phase. The NCP1095 supp orts high-power applications (up to 90 W PoE) through an external pass transis tor. A power good pin guarantees proper disabling/enabling of the adjacent mai n DC/DC converter. The classification r esult pins allow for operation accordin g to the assigned power Class (up to Cl ass 8). The NCP1095 also offers Autocla ss support and indicates when a short M aintain Power Signature can be implemen ted. In addition an auxiliary supply de tection pin allows NCP1095 to be used i n applications where power can be supplied by either PoE or by a wa.
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