# TSX3704IQ4T

**STMicroelectronics** · Comparators · QFN-16(3x3)

TSX3704IQ4T from STMicroelectronics, in a QFN-16(3x3). 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 | VCC+ | power_in | Positive supply, operating range 2.7 V to 16 V (18 V absolute maximum); decouple with a 0.1 µF capacitor close to the supply pins. |
| 2 | IN-1 | input | Inverting input of comparator 1, common-mode range 0 V to (VCC+) - 1.5 V. |
| 3 | NC | unconnected | Not connected. |
| 4 | IN+1 | input | Non-inverting input of comparator 1, common-mode range 0 V to (VCC+) - 1.5 V. |
| 5 | IN-2 | input | Inverting input of comparator 2, common-mode range 0 V to (VCC+) - 1.5 V. |
| 6 | IN+2 | input | Non-inverting input of comparator 2, common-mode range 0 V to (VCC+) - 1.5 V. |
| 7 | IN-3 | input | Inverting input of comparator 3, common-mode range 0 V to (VCC+) - 1.5 V. |
| 8 | IN+3 | input | Non-inverting input of comparator 3, common-mode range 0 V to (VCC+) - 1.5 V. |
| 9 | IN-4 | input | Inverting input of comparator 4, common-mode range 0 V to (VCC+) - 1.5 V. |
| 10 | NC | unconnected | Not connected. |
| 11 | IN+4 | input | Non-inverting input of comparator 4, common-mode range 0 V to (VCC+) - 1.5 V. |
| 12 | VCC- | power_in | Negative supply or ground reference of the device. |
| 13 | OUT4 | output | Push-pull output of comparator 4, 18 V absolute maximum, 20 mA maximum output current. |
| 14 | OUT3 | output | Push-pull output of comparator 3, 18 V absolute maximum, 20 mA maximum output current. |
| 15 | OUT2 | output | Push-pull output of comparator 2, 18 V absolute maximum, 20 mA maximum output current. |
| 16 | OUT1 | output | Push-pull output of comparator 1, 18 V absolute maximum, 20 mA maximum output current. |
| 17 | EP | unconnected | Exposed pad, not internally connected; can be connected to VCC- or left floating. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | QFN-16(3x3) |
| Category | Amplifiers/Comparators |
| Pins | 17 |

## CAD (KiCad official)

- Symbol: `TSX3704IQ4T`
- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`
- 3D model: QFN-16(3x3) (KiCad packages3D, STEP)
- 3D model files: `tsx3704iq4t-etched.step` / `tsx3704iq4t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tsx3704iq4t.step` / `tsx3704iq4t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602995987761938432) (22 pp, sha256 `62956d383b031217`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/tsx3704iq4t-datasheet.pdf)