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 www.onsemi.com device containing the NCP1095 based PD to become an IEEE 802.3af/at and 3bt compliant powered equipment. RELATED STANDARDS It incorporates all the required functions for operation within a PoE IEEE 802.3bt2018 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 16 converter. The classification result pins allow for operation according to the assigned power Class (up to Class 8). 1 The NCP1095 also offers Autoclass support and indicates when a short Maintain Power Signature can be implemented. In addition an TSSOP16 CASE 948F auxiliary supply detection pin allows NCP1095 to be used in applications where power can be supplied by either PoE or by a wall adapter. MARKING DIAGRAM Features 16 Fully Supports IEEE 802.3af/at and 3bt Specifications Supports Up to 5-Event Physical Layer Classification NCP1095 AL Assigned Power Level Up to 90 W YYWW Supports Autoclass 110 mA Typical Inrush Current Limiting Open Drain Power Good Indicator 1 Support for Short MPS NCP1095 = Specific Device Code Pass Switch Disabling Input for Rear Auxiliary Supply Operation A = Assembly Location Proprietary 100 W+ Applications L = Wafer Lot YY = Year Over Current Protection WW = Work Week Over Temperature Protection Junction Temperature Range of 40C to +125C ORDERING INFORMATION Available in 16-pin TSSOP These Devices are PbFree and are RoHS Compliant Device Package Shipping NCP1095DBR2 TSSOP16 2500 / (PbFree) Tape & Reel NCP1095DB TSSOP16 96 / Tube (PbFree) 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 1 Publication Order Number: June, 2019 Rev. 0 NCP1095/DNCP1095 1 16 VPP NCL 2 15 CLA NCM 3 14 CLB PGO AUX 4 13 LCF NCP1095 COSC 5 12 RTN ACS 6 11 GBR DET 7 10 PGATE VPN 8 9 PSNS Figure 1. Pin-out NCP1095 in 16-pin TSSOP (Top View) PIN DESCRIPTION Signal Name Pin No. Type Description VPP 1 Power Positive input power. Connect to the positive terminal of the rectifier bridge CLA 2 Output Connect a class signature programming resistor to VPN. See classification section for recommended values CLB 3 Output AUX 4 Input Auxiliary supply detection input. Referenced to VPN COSC 5 Analog Connect a 1 nF capacitor between COSC and VPN. This pin is pulled to VPP during the detection phase ACS 6 Input Autoclass enable/disable input. Pull to VPN to disable Autoclass leave floating to enable Autoclass DET 7 Output Connect a 26.1 k detection resistor between DET and COSC. This pin is pulled to VPN during the detection phase VPN 8 Power, Negative input power. Ground Connect to the negative terminal of the rectifier bridge PSNS 9 Input Positive current sense line. Connect to the positive side of the external sense resistor (and the source of the external pass transistor) PGATE 10 Output Gate driver for the external pass transistor GBR 11 Output, Control output to disable the active rectifier bridge. Open Drain This pin is referenced to VPN RTN 12 Power DC/DC controller power return. Connect to the drain of the external pass transistor LCF 13 Output, Long Classification Finger Indicator. This pin is referenced to RTN. Open Drain Connect with a pull-up resistor to the logic supply PGO 14 Output, Power Good Indicator. This pin is left floating when the power good signal is Open Drain active. Referenced to RTN. Must be used to enable/disable the main DC/DC converter adjacent to NCP1095. NCM 15 Output, Class result MSB output. This pin is referenced to RTN. Open Drain Connect with a pull-up resistor to the logic supply NCL 16 Output, Class result LSB output. This pin is referenced to RTN. Open Drain Connect with a pull-up resistor to the logic supply www.onsemi.com 2