component

PT4115B89E

Public Made by Adom

by adom

PowTech CR PowTech Shanghai LED Drivers, SOT-89-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs pt4115b89e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json pt4115b89e: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
pt4115b89e-etched.fit.json pt4115b89e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
pt4115b89e-etched.glb pt4115b89e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
pt4115b89e-etched.step pt4115b89e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
pt4115b89e.glb fix footprint: SOT-89-3 -> SOT-89-5 (pad_count, 5 pins) · Ray
pt4115b89e.kicad_mod fix footprint: SOT-89-3 -> SOT-89-5 (pad_count, 5 pins) · Ray
pt4115b89e.kicad_sym Publish 0.1.0 · Ray
pt4115b89e.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
pt4115b89e.step fix footprint: SOT-89-5 -> SOT-89-5 (3d refresh; body regenerated from the footprint F.Fab outline) · Ray
README.md pt4115b89e: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

PT4115B89E

PowTech CR PowTech Shanghai · LED Drivers · SOT-89-5

PT4115B89E from PowTech CR PowTech Shanghai, in a SOT-89-5. 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 SW output Switch output. Drain of the internal high-side N-channel MOSFET switch (Rds(on) ~0.4-0.6 Ω, Isw <=1.2 A continuous, absolute max 1.5 A, -0.3 to 45 V). Connects to the inductor (and the freewheel diode cathode) in the buck power stage.
2 GND power_in Signal and power ground. Connect directly to the ground plane; also serves as the return for the internal MOSFET switch current.
3 DIM input Logic-level dimming / enable input. Drive below 0.3 V to disable the current regulator (shutdown, Iq ~95 µA); drive >=2.5 V to enable full LED current. Accepts a DC voltage from 0.5-2.5 V for linear brightness control, or a PWM signal from 100 Hz up to 20 kHz for duty-cycle dimming (5000:1 range). Internally pulled to a 5 V rail via a ~200 kΩ resistor, so the pin may be left floating for always-on operation. Absolute max -0.3 to 6 V.
4 CSN input High-side current-sense input. Connects to the low side of the external sense resistor Rs (which sits between VIN and CSN). The internal comparator regulates the average voltage (VIN - VCSN) to ~100 mV (98 mV A-type / 102 mV B-type), giving ILED_avg ≈ 0.1 V / Rs. Input current ~8 µA; absolute max +0.3 V to -6.0 V with respect to VIN.
5 VIN power_in Input supply pin. Operating range 6 V to 30 V (absolute max -0.3 to 45 V); UVLO ~5.1 V with ~500 mV hysteresis. Must be locally bypassed (typ. 100 µF ceramic/electrolytic to GND close to the pin). Also serves as the high-side reference for the current-sense comparator.

Key specifications

Parameter Value
Manufacturer PowTech CR PowTech Shanghai
Package SOT-89-5
Category LED-drv
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • PT4115B89E
  • PT4115B89E-B
  • PT4115BSOH
  • PT4115BSOH-B

CAD (KiCad official)

  • Symbol: PT4115B89E
  • Footprint: Package_TO_SOT_SMD:SOT-89-5
  • 3D model: SOT-89-5 (KiCad packages3D, STEP)
  • 3D model files: pt4115b89e-etched.step / pt4115b89e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pt4115b89e.step / pt4115b89e.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
pt4115b89e.step 86 KB You want the bare part, or you mark your own boards.
pt4115b89e-etched.step 1.6 MB You want the part with PT4115B89E already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 415 faces against 26 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: PowTech CR PowTech Shanghai datasheet (18 pp, sha256 24a8e87d81cf2d2d, 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