component

PT6912

Public Made by Adom

by adom

PTC Princeton Tech LED Drivers, TO-252-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentled-drvpt6912
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

Datasheet

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

PT6912

PTC Princeton Tech · LED Drivers · TO-252-5

PT6912 from PTC Princeton Tech, in a TO-252-5. 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 VDD power_in Internal 5 V regulator output / IC supply rail. Internally clamped to VVDD_CLAMP = 5.1-5.5 V (typ 5.3 V) at 1 mA load; abs-max 6.5 V. Typically bypassed to GND with a small ceramic capacitor.
2 GND power_in IC ground reference. Common return for VDD, COMP, and CS. Should be tied to the exposed pad (E-PAD).
3 COMP passive Loop compensation pin. Connect an external capacitor to GND to stabilize the closed-loop constant-current control. Pre-charge threshold VCOMPP ≈ 1.2 V; abs-max −0.3 V to +6 V.
4 CS passive Output current sense / setting pin. An external resistor RCS from CS to GND programs the average LED current: ILED = 300 mV / RCS. Internal reference VREF = 285-315 mV (typ 300 mV). Abs-max −0.3 V to +1.6 V. Open or short on RCS triggers protection (functional-description section).
5 VBS input Input constant-power sense pin (optional). An external RBS1/RBS2 divider from the rectified AC line sets the AC voltage at which constant-power regulation engages: (RBS2/(RBS1+RBS2)) × VAC × 1.414 = 1.2 V threshold. Leave floating (or tie appropriately) if input constant-power mode is not used.
6 NC unconnected No internal connection. Leave floating or tie to GND per PCB convenience.
7 NC unconnected No internal connection. Leave floating or tie to GND per PCB convenience.
8 VIN power_in High-voltage input / drain of the internal power MOSFET. Connects directly to the rectified DC line in series with the LED string. Operating range 20 V to 400 V; abs-max −0.3 V to +600 V. Sinks up to 120 mA peak output current.
9 E-PAD power_in Exposed thermal pad on the bottom of the ESOP-8 package. Electrically GND - must be soldered to the PCB GND copper pour for both heat dissipation (θJA = 41 °C/W) and electrical return.

Key specifications

Parameter Value
Manufacturer PTC Princeton Tech
Package TO-252-5
Category LED-drv
Pins 9

Ordering variants

Same part, different packaging or reel option.

  • PT6912C

CAD (KiCad official)

  • Symbol: PT6912
  • Footprint: Package_TO_SOT_SMD:TO-252-5_TabPin6
  • 3D model: TO-252-5 (KiCad packages3D, STEP)
  • 3D model files: pt6912-etched.step / pt6912-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pt6912.step / pt6912.glb are the bare package body.

Provenance

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

  • Datasheet: PTC Princeton Tech datasheet (8 pp, sha256 5e8e6493cae78b90, retrieved 2026-08-17, 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: 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