component
TS391IQ2T
Public Made by Adomby adom
STMicroelectronics Comparators, QFN-8L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTS391IQ2T
STMicroelectronics · Comparators · QFN-8L
TS391IQ2T from STMicroelectronics, in a QFN-8L. 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 | NC | unconnected | Drawn as a dashed pad with no label or internal connection in the DFN8 2x2 pin diagram. |
| 2 | E+ | input | Non-inverting comparator input; common-mode range is 0 to (VCC+) - 1.5 V at 25 °C and may not go below -0.3 V. |
| 3 | E- | input | Inverting comparator input; common-mode range is 0 to (VCC+) - 1.5 V at 25 °C and may not go below -0.3 V. |
| 4 | VCC- | power_in | Negative supply, or ground in single-supply operation; supply is 2 to 36 V or ±1 to ±18 V. |
| 5 | NC | unconnected | Drawn as a dashed pad with no label or internal connection in the DFN8 2x2 pin diagram. |
| 6 | Out | output | Open-collector comparator output, which can be pulled up to 36 V even if VCC is lower, with a typical sink of 6 to 16 mA and a short-circuit current of about 20 mA. |
| 7 | VCC+ | power_in | Positive supply; supply is 2 to 36 V or ±1 to ±18 V, with a typical supply current of 0.2 mA at 5 V. |
| 8 | NC | unconnected | Drawn as a dashed pad with no label or internal connection in the DFN8 2x2 pin diagram. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | QFN-8L |
| Category | Amplifiers/Comparators |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
TS391IQ2T - Footprint:
Package_DFN_QFN:QFN-8-1EP_6x5mm_P1.27mm_EP3.4x4.2mm - 3D model: QFN-8L, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal QFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
ts391iq2t-etched.step/ts391iq2t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ts391iq2t.step/ts391iq2t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (16 pp, sha256
388b3920838736bd, retrieved 2026-10-10, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).