# TMP390A2DRLT

**Texas Instruments** · Thermostat Switches · SOT-563

TMP390A2DRLT from Texas Instruments, in a SOT-563. 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 | SETA | input | Temperature set point input for channel A programmed with external E96 resistor (1% tolerance, 1.05 kΩ to 909 kΩ) connected between SETA and GND. |
| 2 | SETB | input | Temperature threshold and hysteresis input for channel B programmed with external E96 resistor (1% tolerance, 10.5 kΩ to 909 kΩ) between SETB and GND; hysteresis 5°C, 10°C, or 20°C. |
| 3 | GND | power_in | Device ground connection. |
| 4 | OUTB | tri_state | Channel B open-drain active-low logic output, 0 to 0.4 V at -3 mA load, can be left floating or connected to GND if unused. |
| 5 | VDD | power_in | Power supply voltage input, operating range 1.62 V to 5.5 V. |
| 6 | OUTA | tri_state | Channel A open-drain active-low logic output, 0 to 0.4 V at -3 mA load, can be left floating or connected to GND if unused. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-563 |
| Category | Sensors |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `TMP390A2DRLT`
- Footprint: `Package_TO_SOT_SMD:SOT-563`
- 3D model: SOT-563 (KiCad packages3D, STEP)
- 3D model files: `tmp390a2drlt-etched.step` / `tmp390a2drlt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmp390a2drlt.step` / `tmp390a2drlt.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/tmp390) (27 pp, sha256 `5587991a2f190b3f`, retrieved 2026-10-07, 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-4-5-20251001` (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/tmp390a2drlt-datasheet.pdf)