# TMP411BDGKR

**Texas Instruments** · Temperature Sensors · VSSOP-8-0.65mm

TMP411BDGKR from Texas Instruments, in a VSSOP-8-0.65mm. 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 | V+ | power_in | Positive supply pin; 2.7 V to 5.5 V for the TMP411 (the 1.62 V to 5.5 V range applies only to the TMP411D). |
| 2 | D+ | input | Connects to the positive terminal of the remote temperature sensor diode/transistor, and the device tolerates up to 1000 pF differential input capacitance. |
| 3 | D- | input | Connects to the negative terminal of the remote temperature sensor; D+ and D- must be tied together if the remote channel is unused. |
| 4 | THERM | output | Thermal flag output, active low and open-drain, requires a pull-up resistor to V+ and sinks 6 mA with the pin forced to 0.4 V. |
| 5 | GND | power_in | Ground reference pin for the device. |
| 6 | ALERT/THERM2 | output | Alert output (reconfigurable as a second thermal flag, THERM2), active low and open-drain, requires a pull-up resistor to V+. |
| 7 | SDA | bidirectional | SMBus/two-wire serial data line, open-drain, requires a pull-up resistor to V+; VIH is 2.1 V minimum and VIL is 0.8 V maximum. |
| 8 | SCL | input | SMBus/two-wire serial clock line, open-drain, requires a pull-up resistor to V+; the bus supports clock frequencies up to 3.4 MHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | Sensors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TMP411BDGKR`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files: `tmp411bdgkr-etched.step` / `tmp411bdgkr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmp411bdgkr.step` / `tmp411bdgkr.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/cn/lit/gpn/tmp411) (64 pp, sha256 `4698d791c6f5f2ad`, retrieved 2026-10-11, 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 0.3`, 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/tmp411bdgkr-datasheet.pdf)