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Contents

README

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TL331IDBVR

Texas Instruments · Comparators · SOT-23-5

TL331IDBVR from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 IN+ input Non-inverting comparator input. Common-mode input voltage range includes ground; input bias current typically 25 nA.
2 GND power_in Ground / negative supply reference. Connect to system ground (or V- in split-supply configurations).
3 IN- input Inverting comparator input. Common-mode input voltage range includes ground; input bias current typically 25 nA.
4 OUT output Open-collector comparator output. Requires an external pull-up resistor to VCC (or another rail up to 36 V). Sinks up to ~6 mA typical; output low when IN+ < IN-.
5 VCC power_in Positive supply input. Single-supply range 2 V to 36 V, or split-supply ±1 V to ±18 V. Supply current typically 300 uA.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Op-amp/Cmp
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TL331IDBVR
  • TL331IDBVT

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 mV VCC = 5 V to 30 V, VO = 1.4 V, VIC = VIC(min), TA = 25°C 5
Input offset voltage VIO 9 mV VCC = 5 V to 30 V, VO = 1.4 V, VIC = VIC(min), TA = Full range (–40°C to 85°C) 5
Input offset current IIO 5 50 nA VO = 1.4 V, TA = 25°C 5
Input offset current IIO 250 nA VO = 1.4 V, TA = Full range (–40°C to 85°C) 5
Input bias current IIB -25 -250 nA VO = 1.4 V, TA = 25°C 5
Input bias current IIB -400 nA VO = 1.4 V, TA = Full range (–40°C to 85°C) 5
Common-mode input voltage range VICR 0 V TA = Full range; upper limit printed as VCC – 1.5 V 5
Large-signal differential voltage amplification AVD 50 200 V/mV VCC = 15 V, VO = 1.4 V to 11.4 V, RL ≥ 15 kΩ to VCC, TA = 25°C 5
High-level output current IOH 0.1 50 nA VOH = 5 V, VID = 1 V, TA = 25°C 5
High-level output current IOH 1 μA VOH = 30 V, VID = 1 V, TA = Full range (–40°C to 85°C) 5
Low-level output voltage VOL 150 400 mV IOL = 4 mA, VID = –1 V, TA = 25°C 5
Low-level output voltage VOL 700 mV IOL = 4 mA, VID = –1 V, TA = Full range (–40°C to 85°C) 5
Low-level output current IOL 6 mA VOL = 1.5 V, VID = –1 V, TA = 25°C 5
Supply current ICC 0.4 0.7 mA RL = ∞, VCC = 5 V, TA = 25°C 5
Supply voltage VCC 0 36 V All voltage values except differential are with respect to network ground 4
Differential input voltage VID -36 36 V Differential voltages at IN+ with respect to IN– 4
Input voltage range (either input) VI -0.3 36 V Either input 4
Output voltage VO 0 36 V 4
Output current IO 0 20 mA 4
Operating virtual junction temperature TJ -40 150 °C Over operating free-air temperature range 4
Storage temperature range Tstg -65 150 °C 4
Supply voltage VCC 2 36 V Over operating free-air temperature range 4
Junction temperature TJ -40 125 °C Over operating free-air temperature range 4
Junction-to-ambient thermal resistance RθJA 218.3 °C/W DBV package, 5 pins 4
Junction-to-case (top) thermal resistance RθJC(top) 87.3 °C/W DBV package, 5 pins 4
Junction-to-board thermal resistance RθJB 44.9 °C/W DBV package, 5 pins 4
Junction-to-top characterization parameter ψJT 4.3 °C/W DBV package, 5 pins 4
Junction-to-board characterization parameter ψJB 44.1 °C/W DBV package, 5 pins 4

CAD (KiCad official)

  • Symbol: TL331IDBVR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tl331idbvr-etched.step / tl331idbvr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl331idbvr.step / tl331idbvr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tl331idbvr.step 85 KB You want the bare part, or you mark your own boards.
tl331idbvr-etched.step 1.7 MB You want the part with TL331IDBVR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 440 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (18 pp, sha256 b28fe7231d4e36b1, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF