# TPS2375PW

**Texas Instruments** · Power Over Ethernet (PoE) Controllers · TSSOP-8

TPS2375PW from Texas Instruments, in a TSSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | ILIM | passive | Connect a resistor from ILIM to VSS to set the start-up inrush current limit, with practical R(ILIM) limits of 62.5 kΩ to 500 kΩ, and the pin must not be left open or shorted to VSS. |
| 2 | CLASS | passive | Connect an external classification resistor from CLASS to VSS (255 Ω to 4420 Ω per the recommended operating conditions) to set the IEEE 802.3af PD class, and the pin must not be shorted to ground. |
| 3 | DET | passive | Connect a 24.9 kΩ ±1% detection resistor from DET to VDD for valid PD detection; it is connected across the input only when V(VDD) is between 1.4 V and 11.3 V. |
| 4 | VSS | power_in | Input supply negative rail and local ground for the TPS2375, serving as the return line on the source side from the PSE. |
| 5 | RTN | power_out | Switched negative power rail for downstream circuits, with a recommended sinking operating current range of 0 to 350 mA and an absolute maximum of 515 mA. |
| 6 | PG | output | Open-drain, active-high power-good output pulled to RTN in all states except detection, with recommended sinking current of 0 to 2 mA, and it requires a pullup resistor or other interface. |
| 7 | NC | unconnected | No connection on the TPS2375 (and TPS2377); pin 7 is the UVLO input only on the TPS2376. |
| 8 | VDD | power_in | Positive input supply from the rectified PSE input, with absolute maximum V(VDD-VSS) of 100 V and recommended input range of 0 to 57 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TPS2375PW`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `tps2375pw-etched.step` / `tps2375pw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps2375pw.step` / `tps2375pw.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/tps2375.pdf) (28 pp, sha256 `6559d81e1161e551`, retrieved 2026-10-08, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (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/tps2375pw-datasheet.pdf)