KTA1136EUAE-TR - 13W 802.3af PoE PD Controller | Kinetic
MPN: KTA1136EUAE-TR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.66 | $26.60 |
| 100 | $2.31 | $231.00 |
| 500 | $2.02 | $1,010.00 |
| 1,000 | $1.78 | $1,780.00 |
KTA1136EUAE-TR Overview
A PoE PD controller is a power-management IC that sits at the powered end of an Ethernet link and performs the handshake required by the IEEE 802.3 standard: it presents the correct detection signature to the Power Sourcing Equipment (PSE), communicates its power class, and disconnects the load until valid power is negotiated. Within the power-management IC hierarchy, a PoE PD controller occupies the system-power layer between the RJ45/magnetics input stage and the downstream DC-DC conversion stage.
The KTA1136 integrates input surge protection, a PD controller with a 100V-rated hot-swap FET, a DC-DC converter controller, and a robust 150V-rated switching power MOSFET in a single chip. This high level of integration eliminates the external pass transistor, hot-swap circuitry, and switching controller typically required in a discrete PoE PD design, reducing bill-of-material count and board area. It implements all physical-layer PD functionality required by IEEE 802.3af-2003, including PD detection, classification, under-voltage lockout (UVLO), and hot-swap FET control, and is also listed by distributors as supporting 802.3at (PoE+) and 802.3bt listings.
Typical applications include Voice over IP (VoIP) phones, wireless access points, IP security cameras, and other 13W-class PoE powered devices. The integrated 13W power stage makes it well matched to single-class PD endpoints that draw power directly from the 48V Ethernet rail.
When designing with this part, verify the external DC-DC power stage component ratings against the integrated 150V MOSFET and follow the manufacturer datasheet layout guidance for the hot-swap and switching nodes.
This page synthesizes distributor data, cross-reference findings, and engineering design context not found in a single datasheet, including verified source links and lifecycle information.
Drop-in alternatives for KTA1136EUAE-TR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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KTA1136EUAE
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KTA1136EUAE-TR
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$1.78 / Unit
View Datasheet →KTA1136EUAE-TR Maximum Ratings & Electrical Characteristics
| Product Type | PoE PD Controller with Integrated DC-DC Controller |
| PoE Standard | IEEE 802.3af (PoE); listed for 802.3at / 802.3bt on distributor listings |
| Output Power | 13 W |
| Integrated Hot-Swap FET Rating | 100 V |
| Integrated Switching MOSFET Rating | 150 V |
| PD Functions | Detection, Classification, UVLO, Hot-Swap FET |
| Channels | 1 |
| Package | 16-TQFN (4x4 mm) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (-TR) |
| RoHS Status | RoHS (per distributor listing) |
| Applications | VoIP phones, wireless access points, IP cameras |
| Process Technology | CMOS |
KTA1136EUAE-TR 16-tqfn (4x4 mm) Pin Configuration Guide
Pin configuration for KTA1136EUAE-TR (16-tqfn (4x4 mm) package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for KTA1136EUAE-TR.
Refer to the datasheet for full pin configuration.
Typical Applications
KTA1136EUAE-TR is suitable for 6 applications: Voice over IP (VoIP) Phones, IP Security Cameras, Wireless Access Points, PoE-Enabled Building Automation and IoT Nodes, PoE Splitter and Midspan-Derived Power Modules, Industrial Ethernet Field Devices.
Voice over IP (VoIP) Phones
VoIP phones are the flagship application named by Kinetic Technologies for the KTA1136, and the fit is strong on every axis. The IEEE 802.3af PD interface performs detection, classification, and UVLO handshake exactly as a phone must when plugged into any standards-compliant PoE switch, while the integrated 13W power stage covers the typical draw of a business phone plus display and backlight. The integrated 100V hot-swap FET safely manages the inrush when the phone is connected to the live 48V Ethernet rail, and the 150V-rated switching MOSFET with the on-chip DC-DC controller steps the 48V input down to the phone's internal rails without an external controller IC or pass transistor. Placing the KTA1136EUAE-TR immediately after the RJ45 magnetics and bridge rectifier, with the datasheet-recommended bulk capacitance on the PoE input, yields a compact single-IC power front end that reduces BOM count and board area versus discrete PD controller plus buck solutions.
Recommended
IP Security Cameras
Network IP cameras typically draw 5W to 13W from a PoE port, which places them squarely in the KTA1136's 13W envelope. The part's full IEEE 802.3af-2003 physical-layer PD function - detection signature, class advertisement, and under-voltage lockout - ensures the camera negotiates correctly with any compliant PoE switch, while the integrated surge protection helps survive the long outdoor cable runs and transient-rich environments typical of surveillance installations. The on-chip 100V hot-swap FET controls insertion inrush into the input bulk capacitor, and the integrated DC-DC controller plus 150V power MOSFET generate the camera's primary internal rail from the roughly 37V to 57V PoE input. Because the hot-swap, PD interface, and switching stage share one 4x4 mm TQFN-16 package, camera designers can fit the complete PoE power section into the tight space behind the lens barrel common in dome and bullet camera form factors.
Recommended
Wireless Access Points
802.11ac/ax wireless access points in the 802.3af 13W class use the KTA1136EUAE-TR as their single-chip PoE powered-device front end. The PD controller's detection and classification circuits advertise the access point's power needs to the switch per IEEE 802.3af, and the under-voltage lockout prevents erratic operation during the brownout conditions that occur as switches negotiate power budgets. Once power is validated, the integrated 100V hot-swap FET soft-starts the input bulk capacitors, and the integrated DC-DC controller driving the 150V switching MOSFET converts the 48V nominal PoE rail down to the access point's main intermediate bus voltage. Kinetic's single-chip CMOS integration eliminates the external PD interface IC, hot-swap MOSFET, and switching controller of a discrete design - three fewer ICs on a board that must also house RF front ends and antenna matching networks where board area is at a premium.
Recommended
PoE-Enabled Building Automation and IoT Nodes
Building automation controllers, occupancy sensors, and PoE lighting control nodes increasingly draw power and data from the same Ethernet cable, and the KTA1136EUAE-TR provides the compliant power entry point for these 13W-class nodes. The part's IEEE 802.3af detection and classification ensure the node is recognized by managed PoE switches, enabling remote power-cycling of field devices from the network operations center - a key maintenance benefit in large installations. Surge protection integrated in the KTA1136 addresses the transient exposure of long structured-cabling runs through plenum spaces and building risers. The integrated DC-DC controller with its 150V-rated MOSFET tolerates the full standard PoE voltage span, generating a stable intermediate rail for microcontrollers, sensor front ends, and actuator drivers. Single-chip integration keeps the power section small enough for compact wall-box and ceiling-tile form factors.
Recommended
PoE Splitter and Midspan-Derived Power Modules
PoE splitter modules that extract power from an Ethernet link to feed non-PoE equipment are a natural fit for the KTA1136EUAE-TR. The PD controller performs the required 802.3af detection and classification toward the PSE, so the splitter appears as a legitimate powered device on the network even though its output feeds generic 5V or 12V equipment. The integrated surge protection and 100V hot-swap FET protect both the splitter and the downstream load during cable insertion events, while the integrated DC-DC controller and 150V power MOSFET implement the isolated or non-isolated step-down stage that produces the module's output voltage. Because the whole power path lives in one 4x4 mm TQFN-16 package plus magnetics and rectification, splitter designers can meet tight enclosure constraints for desk- and camera-mount adapters while remaining fully compliant with IEEE 802.3af-2003 PD signaling requirements.
Recommended
Industrial Ethernet Field Devices
Industrial field devices - Ethernet I/O modules, edge gateways, and panel-mounted sensors - benefit from PoE because a single cable delivers both network connectivity and power in environments where separate power drops are costly. The KTA1136EUAE-TR provides the standards-compliant PD interface, with detection, classification, and UVLO per IEEE 802.3af-2003, and its integrated surge protection addresses the electrically noisy conditions of factory cabling. The integrated 13W power stage, built around a 100V hot-swap FET and a 150V switching MOSFET driven by the on-chip DC-DC controller, converts the PoE rail into the device's main logic supply while handling hot insertion into live networks without damaging connectors or downstream circuitry. The high-voltage MOSFET ratings add margin against the transients common on long industrial Ethernet runs, supporting the reliability expectations of industrial deployment.
Recommended
Recommended Products Summary
Engineering reference data for KTA1136EUAE-TR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | KTA1136EUAE |
|---|---|---|
| Package | 16-TQFN (4x4 mm) | 16-TQFN (4x4 mm) - same |
| Brand | Kinetic Technologies | Kinetic Technologies |
| PoE Standard | IEEE 802.3af (13W) | IEEE 802.3af (13W) |
| Output Power | 13 W | 13 W |
| Integrated Hot-Swap FET Rating | 100 V | 100 V |
| Integrated Switching MOSFET Rating | 150 V | 150 V |
| PD Functions | Detection, Classification, UVLO, Hot-Swap | Detection, Classification, UVLO, Hot-Swap |
| Pin-Compatible Cross-Brand Drop-In | None verified (as of 2026-10-19) | N/A - same brand |
Key Differentiators
- Single-chip integration of the complete PoE PD power path (vs Discrete PD controller + external buck (e.g., TI TPS2375-class + TPS62933FDRLR))
- 150V-rated integrated switching MOSFET (vs TPS62933FDRLR (30V max input))
- Trade-off: single-source supply (vs Multi-vendor 802.3af PD interface ICs)
Design Notes
Place the KTA1136EUAE-TR immediately after the RJ45 magnetics and diode bridge, keeping the surge-protection input path short and wide to handle PoE cable transients. The integrated 150V switching MOSFET makes the DC-DC switching node the highest dV/dt point on the board - keep its loop (MOSFET, inductor, rectification, and bulk capacitance) as compact as possible per the manufacturer datasheet layout guidance. Use solid ground planes under the TQFN-16 exposed pad and follow the 4x4 mm thermal-pad land-pattern recommendations for heat spreading.
Do not treat generic online 'equivalent' suggestions such as IRF540 or BSS138 as substitutes - these are discrete MOSFETs with no IEEE 802.3af PD detection, classification, UVLO, or hot-swap logic, and the circuit will fail PSE detection entirely. Also note the discrepancy between the 13W 802.3af positioning in the datasheet and the 802.3at/802.3bt keywords on some distributor category pages: verify class-advertisement behavior against the KTA1136-04a datasheet before designing for PoE+ power levels.
Size the PoE input bulk capacitance to satisfy the IEEE 802.3af-2003 PD input signature requirements so detection and classification complete correctly before power-up; too little capacitance breaks detection while too much can prevent the PSE from recognizing the valid signature. The integrated 100V hot-swap FET controls inrush, but ensure downstream load capacitance stays within the datasheet limit. The 150V MOSFET rating provides margin over the ~57V maximum PoE input span for switching spikes.
Compliance Information
RoHS marked on distributor listings (PCB Electronics, DigiKey, Mouser). REACH, lead-free, halogen-free, and AEC-Q100 statuses not stated in retrieved data; confirm with Kinetic Technologies.
