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Contents

README

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LM26CIM5X-HHD

Texas Instruments · Thermostat Switches · SOT-23-5

LM26CIM5X-HHD 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 HYST input Hysteresis control digital input. Tie to GND to select 10°C hysteresis (typ 11°C) or to V+ to select 2°C hysteresis.
2 GND power_in Ground reference. Connected to the back side of the die through the lead frame; connect to system ground.
3 VTEMP output Analog output voltage proportional to temperature (slope approximately -10.82 mV/°C). Leave floating or connect to a high-impedance node for after-assembly system testing.
4 V+ power_in Positive supply input. Connect to 2.7 V to 5.5 V with a 0.1 µF bypass capacitor. Typical supply current 16 µA (max 40 µA).
5 US output Undertemperature Shutdown push-pull, active-HIGH thermostat digital output (HHD variant, factory trip point 0°C). Drives HIGH when die temperature falls below the preset TUS trip point. Connect to controller interrupt or system/power-supply shutdown.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Sensors
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • LM26CIM5X-HHD
  • LM26CIM5-HHD

CAD (KiCad official)

  • Symbol: LM26CIM5X-HHD
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (24 pp, sha256 b0c32a7f70d022f2, retrieved 2026-08-17, tier: lcsc)
  • 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