component
TPS2372-3RGWT
Public Made by Adomby adom
Texas Instruments Power Over Ethernet (PoE) Controllers, VQFN-20-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+57@@ -0,0 +1,57 @@+# TPS2372-3RGWT++**Texas Instruments** · Power Over Ethernet (PoE) Controllers · VQFN-20-EP(5x5)++TPS2372-3RGWT from Texas Instruments, in a VQFN-20-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VDD | power_in | Positive PoE input supply rail (0-57V); bypass to VSS with 0.1µF capacitor. |+| 2 | DEN | bidirectional | Detection and enable pin; connect 24.9kΩ resistor to VDD for PoE detection (1.4-10.9V range); pull to VSS to disable pass-through MOSFET during powered operation. |+| 3 | CLSA | output | First classification current output; connect resistor to VSS to program Class A current per IEEE 802.3bt Table 1. |+| 4 | VSS | power_in | Negative power supply rail from PoE source; connect to PCB ground plane. |+| 5 | VSS | power_in | Negative power supply rail from PoE source; connect to PCB ground plane. |+| 6 | CLSB | output | Second classification current output; connect resistor to VSS to program Class B current per IEEE 802.3bt Table 1. |+| 7 | REF | output | 1.5V internal voltage reference output; connect 49.9kΩ ±1% resistor to VSS. |+| 8 | AMPS_CTL | output | Automatic MPS control output (23.1-24.9V pulses); connect 1-12kΩ resistor to VSS to set MPS current amplitude, maximum 50mA. |+| 9 | MPS_DUTY | input | MPS duty cycle selection input (0-5.5V); resistor value to VSS selects 5.4% (open), 8.1% (60.4kΩ), or 12.5% (shorted) duty for Type 3-4 PSE. |+| 10 | AUTCLS | input | Autoclass enable input (0-6.5V); internally pulled to 5.5V during classification; pull to VSS to enable Autoclass, keep open otherwise. |+| 11 | RTN | output | PoE pass-through MOSFET drain; output return path referenced to VSS with voltage dependent on load current (0-100V). |+| 12 | RTN | output | PoE pass-through MOSFET drain; output return path referenced to VSS with voltage dependent on load current (0-100V). |+| 13 | PG | tri_state | Power good output (0-100V referenced to RTN); open-drain active-high (0.5V maximum low); indicates startup inrush completion. |+| 14 | NC | unconnected | No connection; leave floating. |+| 15 | NC | unconnected | No connection; leave floating. |+| 16 | IRSHDL_EN | input | Inrush delay enable input (-0.3 to 6.5V referenced to RTN); internally pulled to 5.5V; keep open for 81.5ms minimum delay, connect to RTN to disable. |+| 17 | TPL | tri_state | PSE allocated power output lower bit (0-100V referenced to RTN); open-drain active-high (0.5V maximum low); binary coded power level. |+| 18 | TPH | tri_state | PSE allocated power output upper bit (0-100V referenced to RTN); open-drain active-high (0.5V maximum low); binary coded power level. |+| 19 | BT | tri_state | IEEE 802.3bt detection indicator (-0.3 to 100V referenced to RTN); open-drain active-low (0.5V maximum low); signifies Type 3 or 4 PSE support. |+| 20 | NC | unconnected | No connection; keep open. |+| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-20-EP(5x5) |+| Category | Power Management (PMIC) |+| Pins | 21 |++## CAD (KiCad official)++- Symbol: `TPS2372-3RGWT`+- Footprint: `Package_DFN_QFN:QFN-20-1EP_5x5mm_P0.65mm_EP3.35x3.35mm`+- 3D model: VQFN-20-EP(5x5) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps2372) (38 pp, sha256 `c83bfda2432136d5`, retrieved 2026-09-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tps2372-3rgwt-datasheet.pdf)
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bypass to VSS with 0.1µF capacitor."+ },+ {+ "number": "2",+ "name": "DEN",+ "type": "bidirectional",+ "description": "Detection and enable pin; connect 24.9kΩ resistor to VDD for PoE detection (1.4-10.9V range); pull to VSS to disable pass-through MOSFET during powered operation."+ },+ {+ "number": "3",+ "name": "CLSA",+ "type": "output",+ "description": "First classification current output; connect resistor to VSS to program Class A current per IEEE 802.3bt Table 1."+ },+ {+ "number": "4",+ "name": "VSS",+ "type": "power_in",+ "description": "Negative power supply rail from PoE source; connect to PCB ground plane."+ },+ {+ "number": "5",+ "name": "VSS",+ "type": "power_in",+ "description": "Negative power supply rail from PoE source; connect to PCB ground plane."+ },+ {+ "number": "6",+ "name": "CLSB",+ "type": "output",+ "description": "Second classification current output; connect resistor to VSS to program Class B current per IEEE 802.3bt Table 1."+ },+ {+ "number": "7",+ "name": "REF",+ "type": "output",+ "description": "1.5V internal voltage reference output; connect 49.9kΩ ±1% resistor to VSS."+ },+ {+ "number": "8",+ "name": "AMPS_CTL",+ "type": "output",+ "description": "Automatic MPS control output (23.1-24.9V pulses); connect 1-12kΩ resistor to VSS to set MPS current amplitude, maximum 50mA."+ },+ {+ "number": "9",+ "name": "MPS_DUTY",+ "type": "input",+ "description": "MPS duty cycle selection input (0-5.5V); resistor value to VSS selects 5.4% (open), 8.1% (60.4kΩ), or 12.5% (shorted) duty for Type 3-4 PSE."+ },+ {+ "number": "10",+ "name": "AUTCLS",+ "type": "input",+ "description": "Autoclass enable input (0-6.5V); internally pulled to 5.5V during classification; pull to VSS to enable Autoclass, keep open otherwise."+ },+ {+ "number": "11",+ "name": "RTN",+ "type": "output",+ "description": "PoE pass-through MOSFET drain; output return path referenced to VSS with voltage dependent on load current (0-100V)."+ },+ {+ "number": "12",+ "name": "RTN",+ "type": "output",+ "description": "PoE pass-through MOSFET drain; output return path referenced to VSS with voltage dependent on load current (0-100V)."+ },+ {+ "number": "13",+ "name": "PG",+ "type": "tri_state",+ "description": "Power good output (0-100V referenced to RTN); open-drain active-high (0.5V maximum low); indicates startup inrush completion."+ },+ {+ "number": "14",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection; leave floating."+ },+ {+ "number": "15",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection; leave floating."+ },+ {+ "number": "16",+ "name": "IRSHDL_EN",+ "type": "input",+ "description": "Inrush delay enable input (-0.3 to 6.5V referenced to RTN); internally pulled to 5.5V; keep open for 81.5ms minimum delay, connect to RTN to disable."+ },+ {+ "number": "17",+ "name": "TPL",+ "type": "tri_state",+ "description": "PSE allocated power output lower bit (0-100V referenced to RTN); open-drain active-high (0.5V maximum low); binary coded power level."+ },+ {+ "number": "18",+ "name": "TPH",+ "type": "tri_state",+ "description": "PSE allocated power output upper bit (0-100V referenced to RTN); open-drain active-high (0.5V maximum low); binary coded power level."+ },+ {+ "number": "19",+ "name": "BT",+ "type": "tri_state",+ "description": "IEEE 802.3bt detection indicator (-0.3 to 100V referenced to RTN); open-drain active-low (0.5V maximum low); signifies Type 3 or 4 PSE support."+ },+ {+ "number": "20",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection; keep open."+ },+ {+ "number": "21",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 21 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 38,+ "cost_usd": 0.769,+ "at": "2026-09-17T17:38:01"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tps2372",+ "pages": 38,+ "sha256": "c83bfda2432136d5",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 21,+ "described": 21,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}