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TL331BQDBVRQ1

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Texas Instruments Comparators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TL331BQDBVRQ1

Texas Instruments · Comparators · SOT-23-5

TL331BQDBVRQ1 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 IN- input Negative (inverting) comparator input, with input voltage range -0.3 V to 38 V and input current limited to -50 mA for the TL331B-Q1.
2 GND power_in Ground reference pin for the comparator, with all voltages referenced to network ground.
3 IN+ input Positive (non-inverting) comparator input, with input voltage range -0.3 V to 38 V for the TL331B-Q1.
4 OUT output Open-collector/open-drain output that requires an external pull-up, with output voltage range -0.3 V to 38 V and output current up to 20 mA for the TL331B-Q1.
5 VCC power_in Single-supply input operating from 2 V to 36 V, with an absolute maximum supply voltage of 38 V for the TL331B-Q1.

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
Supply voltage VCC -0.3 38 V 4
Differential input voltage VID -38 38 V 4
Input voltage range (either input) VI -0.3 38 V 4
Output voltage VO -0.3 38 V 4
Output current IO 20 mA 4
Input current IIK -50 mA Input current flows through parasitic diode to ground 4
Operating virtual junction temperature TJ -40 150 °C 4
Storage temperature Tstg -65 150 °C 4
Human-body model ESD V(ESD) -2000 2000 V HBM, per AEC Q100-002 4
Charged-device model ESD V(ESD) -750 750 V CDM, per AEC Q100-011 4
Supply voltage VCC 2 36 V 5
Junction temperature TJ -40 125 °C 5
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
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 signal tresponse 1000 ns Input overdrive = 5mV, input step = 100mV; VS = 5V, VO_PULLUP = 5V, VCM = VS/2, CL = 15pF, RL = 5.1k Ohm, TA = 25°C 6
Propagation delay time, high-to-low, TTL input signal tresponse 300 ns TTL input with Vref = 1.4V; VS = 5V, VO_PULLUP = 5V, VCM = VS/2, CL = 15pF, RL = 5.1k Ohm, TA = 25°C 6
Junction-to-ambient thermal resistance RθJA 211.7 °C/W 5
Junction-to-case (top) thermal resistance RθJC(top) 133.6 °C/W 5
Junction-to-board thermal resistance RθJB 79.9 °C/W 5
Junction-to-top characterization parameter ψJT 56.4 °C/W 5
Junction-to-board characterization parameter ψJB 79.6 °C/W 5

CAD (KiCad official)

  • Symbol: TL331BQDBVRQ1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tl331bqdbvrq1-etched.step / tl331bqdbvrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl331bqdbvrq1.step / tl331bqdbvrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 1dea758384d47754, retrieved 2026-10-17, 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