component
TL391BQDBVRQ1
Public Made by Adomby adom
Texas Instruments Comparators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownTL391BQDBVRQ1
Texas Instruments · Comparators · SOT-23-5
TL391BQDBVRQ1 from Texas Instruments, in a SOT-23-5. 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 | OUT | output | Open collector/drain output that sinks current when IN- is higher than IN+ plus offset, and can be tied to other open-collector outputs for wired-AND; output voltage is rated up to 38V maximum. |
| 2 | GND | power_in | Ground; input common-mode range includes ground. |
| 3 | IN- | input | Negative (inverting) input; differential input voltage range is ±36V and input voltage range is -0.3V to 38V absolute maximum. |
| 4 | IN+ | input | Positive (non-inverting) input; common-mode range extends from ground to VCC - 1.5V and input voltage range is -0.3V to 38V absolute maximum. |
| 5 | VCC | power_in | Power supply input, operating range 2V to 36V (absolute maximum 38V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input offset voltage | VIO | -2.5 | 0.37 | 2.5 | mV | VS = 5 to 36V | 6 |
| Input offset voltage over temperature | VIO | -4 | 4 | mV | VS = 5 to 36V, TA = -40°C to +125°C | 6 | |
| Input bias current | IB | -3.5 | -25 | nA | 6 | ||
| Input bias current over temperature | IB | -50 | nA | TA = -40°C to +125°C | 6 | ||
| Input offset current | IOS | -10 | 0.5 | 10 | nA | 6 | |
| Input offset current over temperature | IOS | -25 | 25 | nA | TA = -40°C to +125°C | 6 | |
| Common mode range | VCM | -0.1 | -1.5 | V | VS = 3 to 36V; printed (V-), 0.1 to (V+), 1.5 | 6 | |
| Common mode range over temperature | VCM | -0.05 | -2 | V | VS = 3 to 36V, TA = -40°C to +125°C; printed (V-), 0.05 to (V+), 2.0 | 6 | |
| Large signal differential voltage amplification | AVD | 50 | 200 | V/mV | VS = 15V, VO = 1.4V to 11.4V; RL ≥ 15k to (V+) | 6 | |
| Low level output voltage | VOL | 110 | 400 | mV | ISINK ≤ 4mA, VID = -1V | 6 | |
| Low level output voltage over temperature | VOL | 550 | mV | ISINK ≤ 4mA, VID = -1V, TA = -40°C to +125°C | 6 | ||
| High-level output leakage current | IOH-LKG | 0.1 | 20 | nA | (V+) = VO = 5V; VID = 1V | 6 | |
| High-level output leakage current over temperature | IOH-LKG | 1000 | nA | (V+) = VO = 36V; VID = 1V; TA = -40°C to +125°C | 6 | ||
| Low level output current | IOL | 6 | 18 | mA | VOL = 1.5V; VID = -1V; VS = 5V | 6 | |
| Quiescent current | IQ | 210 | 330 | µA | VS = 5V, no load | 6 | |
| Quiescent current over temperature | IQ | 275 | 430 | µA | VS = 36V, no load, TA = -40°C to +125°C | 6 | |
| Propagation delay time, high-to-low, small scale input | tresponse | 1000 | ns | Input overdrive = 5mV, Input step = 100mV | 6 | ||
| Propagation delay time, high-to-low, TTL input | tresponse | 300 | ns | TTL input with Vref = 1.4V | 6 | ||
| Supply voltage (abs max) | VCC | -0.3 | 38 | V | 4 | ||
| Differential input voltage (abs max) | VID | -38 | 38 | V | 4 | ||
| Input voltage range, either input (abs max) | VI | -0.3 | 38 | V | 4 | ||
| Output voltage (abs max) | VO | -0.3 | 38 | V | 4 | ||
| Output current (abs max) | IO | 20 | mA | 4 | |||
| Input current (abs max) | IIK | -50 | mA | 4 | |||
| Operating virtual junction temperature (abs max) | TJ | -40 | 150 | °C | 4 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| ESD HBM | V(ESD) | -2000 | 2000 | V | Human-body model (HBM), per AEC Q100-002 | 4 | |
| ESD CDM | V(ESD) | -750 | 750 | V | Charged-device model (CDM), per AEC Q100-0111 | 4 | |
| Supply voltage (recommended) | VCC | 2 | 36 | V | 5 | ||
| Junction temperature (recommended) | TJ | -40 | 125 | °C | 5 | ||
| Junction-to-ambient thermal resistance | RθJA | 211.7 | °C/W | DBV (SOT-23), 5 pins | 5 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 133.6 | °C/W | DBV (SOT-23), 5 pins | 5 | ||
| Junction-to-board thermal resistance | RθJB | 79.9 | °C/W | DBV (SOT-23), 5 pins | 5 | ||
| Junction-to-top characterization parameter | ψJT | 56.4 | °C/W | DBV (SOT-23), 5 pins | 5 | ||
| Junction-to-board characterization parameter | ψJB | 79.6 | °C/W | DBV (SOT-23), 5 pins | 5 |
CAD (KiCad official)
- Symbol:
TL391BQDBVRQ1 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
tl391bqdbvrq1-etched.step/tl391bqdbvrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl391bqdbvrq1.step/tl391bqdbvrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (28 pp, sha256
8501191d4b685685, retrieved 2026-10-22, 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).