TM1926D from TM Shenzhen Titan Micro Elec, in a SOP-16. 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	Logic supply, 4.5-5.5 V typical. Internal 5 V shunt regulator allows operation from 6-24 V via a series resistor (e.g. 50 Ω @ 6 V, 1.8 kΩ @ 24 V) with ~10 mA into VDD.
2	DO	output	Single-wire cascade data output. Reshapes and forwards downstream data to the next TM1926D's DIN after the local 96-bit (24x4) frame is captured. VOH >= VDD-0.5 V @ -6 mA, VOL <= 0.4 V @ 10 mA.
3	OUTR4	output	Red channel constant-current sink for pixel 4. 17 mA typ (16-18 mA), OUT rated to 24 V, 8-bit PWM at ~3.8 kHz. Open-drain sink to LED cathode; anode returned to VLED.
4	OUTG4	output	Green channel constant-current sink for pixel 4. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
5	OUTB4	output	Blue channel constant-current sink for pixel 4. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
6	OUTR3	output	Red channel constant-current sink for pixel 3. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
7	OUTG3	output	Green channel constant-current sink for pixel 3. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
8	OUTB3	output	Blue channel constant-current sink for pixel 3. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
9	GND	power_in	System ground reference for logic and constant-current sinks.
10	OUTB2	output	Blue channel constant-current sink for pixel 2. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
11	OUTG2	output	Green channel constant-current sink for pixel 2. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
12	OUTR2	output	Red channel constant-current sink for pixel 2. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
13	OUTB1	output	Blue channel constant-current sink for pixel 1. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
14	OUTG1	output	Green channel constant-current sink for pixel 1. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
15	OUTR1	output	Red channel constant-current sink for pixel 1. 17 mA typ, 8-bit PWM brightness, OUT withstand 24 V.
16	DIN	input	Single-wire cascade data input. Return-to-zero encoded, ~800 kHz bit rate, T0H/T1H distinguish 0/1. VIH >= 3.5 V @ VDD=5 V, VIL <= 1.35 V. Recommended 1 kΩ series resistor.

Key specifications

Parameter	Value
Manufacturer	TM Shenzhen Titan Micro Elec
Package	SOP-16
Category	LED-drv
Pins	16

CAD (KiCad official)

Symbol: TM1926D
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOP-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tm1926d.step`	217 KB	You want the bare part, or you mark your own boards.
`tm1926d-etched.step`	2.0 MB	You want the part with `TM1926D` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 493 faces against 267 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: TM Shenzhen Titan Micro Elec datasheet (10 pp, sha256 aa22b02dcfdafd91, 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